電気通信研究所 深見准教授研究室

成果等

学術論文

  1. T. Dohi, S. DuttaGupta, S. Fukami, and H. Ohno,
    "Formation and current-induced motion of synthetic antiferromagnetic skyrmion bubbles,"
    Nature Communications 10, 5153 (2019).
    doi:10.1038/s41467-019-13182-6
  2. Y.-C. Lau, Z. Chi, T. Taniguchi, M. Kawaguchi, G. Shibata, N. Kawamura, M. Suzuki, S. Fukami, A. Fujimori, H. Ohno, and M. Hayashi,
    "Giant perpendicular magnetic anisotropy in Ir/Co/Pt multilayers,"
    Physical Review Materials 3, 104419 (2019).
    doi:10.1103/PhysRevMaterials.3.104419
  3. W. A. Borders, A. Z. Pervaiz, S. Fukami, K. Y. Camsari, H. Ohno, and S. Datta,
    "Integer factorization using stochastic magnetic tunnel junctions,"
    Nature 573, 390-393 (2019).
    doi:10.1038/s41586-019-1557-9
  4. T. Saino, S. Kanai, M. Shinozaki, B. Jinnai, H. Sato, S. Fukami, and H. Ohno,
    "Write-error rate of nanoscale magnetic tunnel junctions in the precessional regime,"
    Applied Physics Letters 115, 142406 (2019).
    doi:10.1063/1.5121157
  5. A. Okada, Y. Takeuchi., K. Furuya, C. Zhang, H. Sato, S. Fukami, and H. Ohno,
    "Spin-Pumping-Free Determination of Spin-Orbit Torque Efficiency from Spin-Torque Ferromagnetic Resonance,"
    Physical Review Applied 12, 014040 (2019).
    doi:10.1103/PhysRevApplied.12.014040
  6. A. Kurenkov, S. DuttaGupta, C. Zhang, S. Fukami, Y. Horio, and H. Ohno,
    "Artificial neuron and synapse realized in an antiferromagnet/ferromagnet heterostructure using dynamics of spin-orbit torque switching,"
    Advanced Materials 31, 1900636 (2019).
    doi:10.1002/adma.201900636
  7. T. Dohi, S. DuttaGupta, S. Fukami, and H. Ohno,
    "Reversal of domain wall chirality with ferromagnet thickness in W/(Co)FeB/MgO systems,"
    Applied Physics Letters 114, 042405 (2019).
    doi:10.1063/1.5084095
  8. Y. Takahashi, Y. Takeuchi, C. Zhang, B. Jinnai, S. Fukami, and H. Ohno,
    "Spin-orbit torque-induced switching of in-plane magnetized elliptic nanodot arrays with various easy-axis directions measured by differential planar Hall resistance,"
    Applied Physics Letters 114, 012410 (2019).
    doi:10.1063/1.5075542
  9. H. Sato, P. Chureemart, F. Matsukura, R. W. Chantrell, H. Ohno, and R. F. L. Evans,
    "Temperature-dependent properties of CoFeB/MgO thin films: Experiments versus simulations,"
    Physical Review B 98, 214428 (2018).
    doi:10.1103/PhysRevB.98.214428
  10. B. Jinnai, H. Sato, S. Fukami, and H. Ohno,
    "Scalability and wide temperature range operation of spin-orbit torque switching devices using Co/Pt multilayer nanowires,"
    Applied Physics Letters 113, 212403 (2018).
    doi:10.1063/1.5045814
  11. S. DuttaGupta, R. Itoh, S. Fukami, and H. Ohno,
    "Angle dependent magnetoresistance in heterostructures with antiferromagnetic and non-magnetic metals,"
    Applied Physics Letters 113, 202404 (2018).
    doi:10.1063/1.5049566
  12. M. Bersweiler, E. C. I. Enobio, S. Fukami, H. Sato, and H. Ohno,
    "An effect of capping-layer material on interfacial anisotropy and thermal stability factor of MgO/CoFeB/Ta/CoFeB/MgO/capping-layer structure,"
    Applied Physics Letters 113, 172401 (2018).
    doi:10.1063/1.5050486
  13. S. Fukami and H. Ohno,
    "Perspective: Spintronic synapse for artificial neural network,"
    Journal of Applied Physics 124, 151904 (2018).
    doi:10.1063/1.5042317
  14. M. Pohlit, S. Rößler, Y. Ohno, H. Ohno, S. Molnár, Z. Fisk, J. Müller, and S. Wirth,
    "Evidence for Ferromagnetic Clusters in the Colossal-Magnetoresistance Material EuB6,"
    Physical Review Letters 120, 257201 (2018).
    doi:10.1103/PhysRevLett.120.257201
  15. W. A. Borders, S. Fukami, and H. Ohno,
    "Characterization of spin–orbit torque-controlled synapse device for artificial neural network applications,"
    Japanese Journal of Applied Physics 57, 1002B2 (2018).
    doi:10.7567/JJAP.57.1002B2
  16. N. Ichikawa, T. Dohi, A. Okada, H. Sato, S. Fukami, and H. Ohno,
    "Non-linear variation of domain period under electric field in demagnetized CoFeB/MgO stacks with perpendicular easy axis,"
    Applied Physics Letters 112, 202402 (2018).
    doi:10.1063/1.5035487
  17. Y. Takeuchi, C. Zhang, A. Okada, H. Sato, S. Fukami, and H. Ohno,
    "Spin-orbit torques in high-resistivity-W/CoFeB/MgO,"
    Applied Physics Letters 112, 192408 (2018).
    doi:10.1063/1.5027855
  18. A. Okada, S. Kanai, S. Fukami, H. Sato, and H. Ohno,
    "Electric-field effect on the easy cone angle of the easy-cone state in CoFeB/MgO investigated by ferromagnetic resonance,"
    Applied Physics Letters 111, 172402 (2018).
    doi:10.1063/1.5026418

著書・解説記事

  1. T. Hanyu, T. Endoh, Y. Ando, S. Ikeda, S. Fukami, H. Sato, H. Koike, Y. Ma, D. Suzuki and H. Ohno,
    "Chapter 7 - Spin-transfer-torque magnetoresistive random-access memory (STT-MRAM) technology,"
    Advances in Non-volatile Memory and Storage Technology, Second Edition (Edited by Blanka Magyari-Köpe, Yoshio Nishi), Woodhead Publishing , 237-281 (2019).
  2. 深見俊輔、大野英男,
    "不揮発性スピントロニクス素子技術 ー大容量化、高速化、多機能化に向けた取り組みー,"
    日本学術振興会 先端ナノデバイス・材料テクノロジー第151委員会 平成30年度 第6回研究会資料 「スピントロニクスの新たな展開と展望」 , 17-25 (2019).
  3. 深見俊輔、大野英男,
    "限界に迫る極微細磁気トンネル接合素子,"
    物理科学雑誌『パリティ』(丸善出版株式会社) 第33巻12号, 60-63 (2018).
  4. 深見俊輔、大野英男,
    "反強磁性金属を用いたスピン軌道トルク磁化反転 ,"
    日本磁気学会誌『まぐね』 13, 223-228 (2018).

学会発表(国際・国内)

International
Plenary/Invited
  1. S. DuttaGupta, A. Kurenkov, R. Itoh, O. A. Tretiakov, G. Krishnaswamy, G. Sala, V. Krizakova, F. Maccherozzi, S. S. Dhesi, P. Gambardella, S. Fukami, and H. Ohno, "Metallic Antiferromagnets for spintronics: Reading and writing," (invited) INTERNATIONAL WORKSHOP SPINTRONICS 2019 (Spin Peru), Ollantaytambo, Peru, 2019/10/20-2019/10/25.
  2. H. Ohno, "Spintronics Nanodevices – From Interface to Advanced Computation," (invited) Atomic Level Characterization (ALC '19), Kyoto, Japan, 2019/10/20-2019/10/25.
  3. S. Fukami and H. Ohno, "Neuromorphic Computing with Spintronics," (invited) SPICE Workshop on Antiferromagnetic Spintronics: from topology to neuromorphic computing, Mainz, Germany, 2019/10/07-2019/10/10.
  4. A. Kurenkov, S. DuttaGupta, C. Zhang, S. Fukami, Y. Horio and H. Ohno, "Antiferromagnet/ferromagnet heterostructures as synapses and neurons," (invited) SPICE Workshop on Antiferromagnetic Spintronics: from topology to neuromorphic computing, Mainz, Germany, 2019/10/07-2019/10/10.
  5. S. Fukami and H. Ohno, "Spintronics for unconventional computing," (invited) IMEC-Stanford Memory Workshop, Leuven, Belgium, 2019/10/17-2019/10/18.
  6. H. Ohno, " Magnetic Tunnel Junction: Scaling and beyond," (invited) Workshop Spintronic Tohoku-Mainz Lorraine 2019, Lorraine University, Nancy, France, 2019/09/17-2019/09/20.
  7. S. Iihama, J. Igarashi, Y. Xu, M. Deb, G. Malinowski, M. Hehn, J. Gorchon, E. E. Fullerton, S. Fukami, S. Mizukami and S. Mangin, "All-optical single shot magnetization switching mediated by angular momentum transfer in spin-valve," (invited) Workshop Spintronic Tohoku-Mainz Lorraine 2019, Lorraine University, Nancy, France, 2019/09/17-2019/09/20.
  8. S. Fukami, "Spin-orbit torque in nonmagnet/ferromagnet systems," (invited) Workshop Spintronic Tohoku-Mainz Lorraine 2019, Lorraine University, Nancy, France, 2019/09/17-2019/09/20.
  9. H. Ohno, "Why We Need Spintronics in the Era of loT and AI," (invited) Purdue-Tohoku Spintronics Workshop II, Purdue University, IN, USA, 2019/09/11.
  10. S. Fukami and H. Ohno, "Spin-orbit torque switching for spiking neural networks," (invited) Purdue-Tohoku Spintronics Workshop II, Purdue University, IN, USA, 2019/09/11.
  11. S. Fukami, "Spin-orbit torque and neural network," (invited) 2019 International Conference on Solid-State Devices and Materials (SSDM 2019) , Nagoya University, Nagoya, Japan, 2019/09/02-2019/09/05.
  12. H. Ohno, "Spin on Integrated Circuits: Moving Science to Technology," (plenary) Tenth International School and Conference on Spintronics and Quantum Information Technology (SpintechX), Chicago, USA, 2019/06/24-2019/06/27.
  13. H. Ohno, "Spintronics Nanodevice - From Ultimate Scaling to Mimicking Brain Function," (invited) , Madrid, Spain , 2019/06/17-2019/06/21.
  14. H. Ohno, "Why we need spintronics for the era of AI and IoT?," (invited) 5th WORLD MATERIALS FORUM , Nancy, France, 2019/06/12-2019/06/14.
  15. H. Ohno, "Spintronics Nanodevice - From integrated circuit application to mimicking brain function ," (invited) York-Tohoku-Kaiserslautern Research Symposium on “New-Concept Spintronics Devices”, University of York, UK, 2019/06/12-2019/06/14.
  16. S. Fukami and H. Ohno, "Artificial neural network using analog/binary spintronic devices," (invited) “Bits&Brains”: Brain-inspired materials and architectures for low energy information technology, a KNAW-Radboud University –symposium, Amsterdam, Netherlands, 2019/04/17-2019/04/18.
  17. S. Fukami, "Spintronic Devices for Neural Networks," (invited) APS March Meeting 2019, Boston, Massachusetts, USA, 2019/03/03-2019/03/07.
  18. S. Fukami and H. Ohno , "Spin orbitronics for high-speed memory and artificial neural network ," (invited) 2nd Tohoku/SG-SPIN Workshop in Spintronics, National University of Singapore, Singapore, 2019/02/22-2019/02/23.
  19. M. Shinozaki, J. Igarashi, J. Llandro, S. Fukami, H. Sato, and H. Ohno, "Size Dependence of the Influence of Edge Effects in Nanoscale Perpendicular-Anisotropy Magnetic Tunnel Junctions," (invited) The 2nd Symposium for World Leading Research Centers, Sendai International Center, Sendai, 2019/02/15-2019/02/17.
  20. K. Watanabe, B. Jinnai, S. Fukami, H. Sato and H. Ohno, "1X and X nm Perpendicular-easy-axis Magnetic Tunnel Junctions utilizing Shape Anisotropy ," (invited) The 2nd Symposium for World Leading Research Centers, Sendai International Center, Sendai, 2019/02/15-2019/02/17.
  21. S. Fukami and H. Ohno, "Spin-Orbit Torque Switching in Nanoscale Devices: Material and Device Engineering," (invited) 16th RIEC International Workshop on Spintronics and 8th JSPS Core-to-Core Workshop on “New-Concept Spintronic Devices” , Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, 2019/01/09-2019/01/12.
  22. H. Ohno, "Spintronics Nanodevices," (invited) 14th International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures & 26th International Colloquium on Scanning Probe Microscopy (ACSIN-14 & ICSPM26), Sendai, Japan, 2018/10/21-2018/10/25.
  23. S. Fukami, W. A. Borders, A. Kurenkov, C. Zhang, S. DuttaGupta, and H. Ohno, "Associative memory operation using analog spin-orbit torque device," (invited) SPICE Workshop - Spintronics meets Neuromorphics, Mainz, Germany, 2018/10/08-2018/10/12.
  24. C. Zhang, Y. Takeuchi, S. Fukami, and H. Ohno, "Spin-orbit torque switching in nanoscale devices – physics and material engineering," (invited) KITS Workshop 2018, Beijing, China, 2018/10/01-2018/10/19.
  25. S. Fukami, W. A. Borders, A. Kurenkov, C. Zhang, S. DuttaGupta, and H. Ohno, "Analog spintronics device for artificial neural networks," (invited) The 2018 International Symposium on Nonlinear Theory and Its Applications (NOLTA2018), Tarragona, Spain, 2018/09/02-2018/09/06.
  26. W. A. Borders, S. Fukami, and H. Ohno, "Antiferromagnet/Ferromagnet Based Spin-Orbit Torque Devices for Hopfield Network Applications (Invited)," (invited) Explorative Workshop: Spintronic Perspectives on Neuromorphic Computing, Jülich, Germany, 2018/08/13-2018/08/15.
  27. H. Ohno, "Opening - from PASPS-1 to PASPS-10," (invited) The 10th International School and Conference on Physics and Applications of Spin Phenomena in Solids – PASPS10, Linz, Austria, 2018/08/05-2018/08/09.
  28. S. Fukami, W. A. Borders, A. Kurenkov, C. Zhang, S. DuttaGupta, and H. Ohno, "Neuromorphic computing with analog spin-orbit torque devices," (invited) The 10th International School and Conference on Physics and Applications of Spin Phenomena in Solids – PASPS10, Linz, Austria, 2018/08/05-2018/08/09.
  29. S. DuttaGupta, R. Itoh, S. Fukami, and H. Ohno, "Angular dependence of magnetoresistance in nonmagnet/antiferromagnet bilayer structure," (invited) Tohoku-Tsinghua Joint Workshop on Materials and Spintronics Sciences, Sendai, Japan, 2018/07/26.
  30. S. Fukami, C. Zhang, B. Jinnai, and H. Ohno, "Spin-orbit torque switching device for high-performance and low-power integrated circuits," (invited) The 23rd International Colloquium on Magnetic Films and Surfaces (ICMFS-2018), UC Santa Cruz, USA, 2018/07/22-2018/07/27.
  31. S. Fukami, W. A. Borders, A. Kurenkov, C. Zhang, S. DuttaGupta, and H. Ohno, "Analog spin-orbit torque devices for artificial neural networks," (invited) The 21st International Conference on Magnetism (ICM2018), San Francisco, USA, 2018/07/16-2018/07/20.
  32. S. Fukami, W. A. Borders, A. Kurenkov, C. Zhang, S. DuttaGupta, and H. Ohno, "Neuromorphic computing with analog spin-orbit torque device," (invited) Workshop on Spintronics and Nanomagnetism for Neuromorphic Computing, Leeds, UK, 2018/06/26-2018/06/27.
  33. H. Sato, K. Watanabe, B. Jinnai, S. Fukami, H. Honjo, S. Ikeda, T. Endoh, and H. Ohno, "High-performance (Co)FeB/MgO-based magnetic tunnel junctions with perpendicular easy axis down to single-digit nanometer scale," (invited) 2018 Spintronics Workshop on LSI, Honolulu, Hawaii, USA, 2018/06/17.
  34. S. Fukami, W. A. Borders, A. Kurenkov, C. Zhang, S. DuttaGupta, and H. Ohno, "Spintronic analog memory for neuromorphic computing," (invited) 14th International Conference on Modern Materials and Technologies (CIMTEC2018), Perugia, Italy, 2018/06/04-2018/06/14.
  35. S. Fukami, C. Zhang, W. A. Borders, A. Kurenkov, S. DuttaGupta, and H. Ohno, "Spin-orbit torque switching and its applications – from high-speed memory to artificial neural network," (invited) 5th International Conference of Asian Union of Magnetics Societies (IcAUMS 2018), Jedu, Korea, 2018/06/03-2018/06/07.
  36. S. Fukami, "Potential and challenges of nonvolatile spintronics devices for integrated circuits applications," (invited) 7th Workshop of the Core-to-Core Project Tohoku-York-Kaiserslautern “New concepts for future spintronic devices”, Kaiserslautern, Germany, 2018/05/28-2018/05/30.
  37. S. Fukami and H. Ohno, "Nonvolatile memory devices with magnetic nanowires controlled by spin-transfer and spin-orbit torques," (invited) IEEE International Magnetics Conference (INTERMAG 2018), Singapore, 2018/04/23-2018/04/28.
  38. H. Ohno, "Spintronics Nanodevices," (plenary) IEEE International Magnetics Conference (INTERMAG 2018), Singapore, 2018/04/23-2018/04/28.
Contributed
  1. H. Fulara, M. Zahedinejad, R. Khymyn, M. Dvornik, S. Fukami, S. Kanai, H. Ohno, and J. Åkerman, "Voltage-controlled tunability of threshold current and frequency in spin Hall nano-oscillators," (oral) 2019 MMM Conference, Las Vegas, USA, 2019/11/04-2019/11/08.
  2. G. Krishnaswamy, A. Kurenkov, G. Sala, M. Baumgartner, V. Krizakova, F. Maccherozzi, S. Dhesi, S. Fukami, H. Ohno, and P. Gambardella, "Multi-domain memristive magnetization switching in antiferromagnet/ferromagnet heterostructures," (poster) SPICE Workshop on Antiferromagnetic Spintronics: from topology to neuromorphic computing, Mainz, Germany, 2019/10/07-2019/10/10.
  3. J. Igarashi, S. Kanai, M. Shinozaki, J. Llandro, H. Sato, S. Fukami, and H. Ohno, "Magnetic-field angle dependence of coercivity with and without bias current in nanoscale magnetic tunnel junctions," (oral) Purdue-Tohoku Spintronics Workshop II, Lorraine University, Nancy, France, 2019/09/17-2019/09/20.
  4. W. A. Borders, S. Fukami and H. Ohno, "Demonstration of associative memory using spin-orbit torque artificial synapse," (poster) Purdue-Tohoku Spintronics Workshop II, Purdue University, IN, USA, 2019/09/11.
  5. T. Dohi, S. DuttaGupta, S. Fukami and H. Ohno, "Dzyaloshinskii-Moriya interaction and domain wall chirality in W/(Co)FeB/MgO systems," (poster) Purdue-Tohoku Spintronics Workshop II, Purdue University, IN, USA, 2019/09/11.
  6. A. K. Dhiman, Z. Kurant, T. Dohi, I. Sveklo, S. Fukami, H. Ohno, A. Maziewski , "Magnetization reversal and Domain structures in ultrathin CoFeB Films," (oral) The European School on Magnetism (ESM), Brno, Czech Republic , 2019/09/02-2019/09/13.
  7. A. K. Dhiman, Z. Kurant, T. Dohi, I. Sveklo, S. Fukami, H. Ohno, A. Maziewski , "Magnetization reversal and Domain structures in ultrathin CoFeB Films," (oral) The Joint European Magnetic Symposia (JEMS) 2019 , Uppsala, Sweden, 2019/08/26-2019/08/30.
  8. S. Kanai, Y. Nakatani, F. Matsukura, and H. Ohno, "Thermal Effect in Electric-field Induced Magnetization Switching in Nanoscale Magnetic Tunnel Junctions," (oral) Tenth International School and Conference on Spintronics and Quantum Information Technology (SpintechX), Chicago, USA, 2019/06/24-2019/06/27.
  9. T. Dohi, S. DuttaGupta, S. Fukami, and H. Ohno, "Chirality transition in Dzyaloshinskii-Moriya interaction and domain wall with varying ferromagnet thickness in heavy-metal/ferromagnet heterostructures," (poster) Tenth International School and Conference on Spintronics and Quantum Information Technology (SpintechX), Chicago, USA, 2019/06/24-2019/06/27.
  10. S. DuttaGupta, R. Itoh, A. Kurenkov, S. Fukami, and H. Ohno, "Spin Hall Magnetoresistance in antiferromagnet/nonmagnet metallic structures," (oral) York-Tohoku-Kaiserslautern Research Symposium on “New-Concept Spintronics Devices”, University of York, UK, 2019/06/12-2019/06/14.
  11. C. Zhang, Y. Takeuchi, Y. Takahashi, S. Fukami, and H. Ohno, "Efficient control of magnetization utilizing spin-orbit torque and spin-transfer torque," (oral) York-Tohoku-Kaiserslautern Research Symposium on “New-Concept Spintronics Devices”, University of York, UK, 2019/06/12-2019/06/14.
  12. A. Kurenkov, S. DuttaGupta, C. Zhang, S. Fukami, Y. Horio, and H. Ohno, "Antiferromagnet/ferromagnet heterostructures for artificial neurons and synapses," (poster) York-Tohoku-Kaiserslautern Research Symposium on “New-Concept Spintronics Devices”, University of York, UK, 2019/06/12-2019/06/14.
  13. J. Igarashi, M. Shinozaki, J. Llandro, H. Sato, S. Fukami, and H. Ohno, "Size Dependence of the Influence of Edge Effects in Nanoscale Perpendicular-Anisotropy Magnetic Tunnel Junctions," (oral) York-Tohoku-Kaiserslautern Research Symposium on “New-Concept Spintronics Devices”, University of York, UK, 2019/06/12-2019/06/14.
  14. M. Zahedinejad, S. Fukami, S. Kanai, H. Ohno, and J. Åkerman, "Memristors make spin Hall nano-oscillators synchronize and remember," (oral) Design and Technology of Integrated Systems 2019, Mykoknons, Greece, 2019/04/16-2019/04/18.
  15. T. Dohi, S. Duttagupta, S. Fukami, and H. Ohno, "Sign change of effective Dyaloshinskii-Moriya field with varying ferromagnet thickness in W/(Co)FeB/MgO systems," (oral) 2nd Tohoku/SG-SPIN Workshop in Spintronics, National University of Singapore, Singapore, 2019/02/22-2019/02/23.
  16. Y. Takeuchi, K. Furuya, Y. Takahashi, B. Jinnai, C. Zhang, S. Fukami, and H. Ohno, "Engineering of spin-orbit torques in W/CoFeB/MgO heterostructures for efficient control of magnetization," (oral) 2nd Tohoku/SG-SPIN Workshop in Spintronics, National University of Singapore, Singapore, 2019/02/22-2019/02/23.
  17. S. Kanai, Y. Nakatani, F. Matsukura, and H. Ohno, "Magnetization Dynamics Induced by Electric-field in a Nanoscale Magnetic Tunnel Junction," (poster) The 2nd Symposium for World Leading Research Centers, Sendai International Center, Sendai, 2019/02/15-2019/02/17.
  18. S. DuttaGupta, R. Itoh, S. Fukami and H. Ohno, "Spin Hall Magnetoresistance in antiferromagnet/non-magnet metallic heterostructures," (poster) The 2nd Symposium for World Leading Research Centers, Sendai International Center, Sendai, 2019/02/15-2019/02/17.
  19. B. Jinnai, H. Sato, S. Fukami, and H. Ohno, "Magnetization switching induced by spin-orbit torques in Co/Pt multilayer nanowire device over a wide range of temperatures," (poster) The 2nd Symposium for World Leading Research Centers, Sendai International Center, Sendai, 2019/02/15-2019/02/17.
  20. A. Kurenkov, M. Baumgartner, G. Sala, G. Krishnaswamy, F. Maccherozzi, S. Fukami, P. Gambardella, and H. Ohno, "Observation of domains during spin-orbit torque induced memristive switching in antiferromagnet/ferromagnet heterostructures," (poster) The 2nd Symposium for World Leading Research Centers, Sendai International Center, Sendai, 2019/02/15-2019/02/17.
  21. C. Zhang, Y. Takeuchi, Y. Takahashi, S. Fukami, and H. Ohno, "Sub-ns switching by combining SOT and STT in MTJ devices," (poster) The 2nd Symposium for World Leading Research Centers, Sendai International Center, Sendai, 2019/02/15-2019/02/17.
  22. M. Shinozaki, T. Dohi, J. Igarashi, J. Llandro, S. Kanai, S. Fukami, H. Sato, and H. Ohno, "Edge state of nanoscale magnetic tunnel junctions proved by spin-wave resonance," (oral) 2019 Joint MMM-Intermag Conference, Washington, DC, USA, 2019/01/14-2019/01/18.
  23. C. Zhang, Y. Takeuchi, Y. Takahashi, S. Fukami, and H. Ohno, "Sub-ns and low-power magnetization switching by combination of spin-orbit torque and spin-transfer torque," (oral) 2019 Joint MMM-Intermag Conference, Washington DC, USA, 2019/01/14-2019/01/18.
  24. K. Furuya, Y. Takeuchi, C. Zhang, B. Jinnai, S. Fukami, and H. Ohno, "Relationship between spin-orbit torque switching efficiency and W resistivity in W/CoFeB/MgO," (oral) 2019 Joint MMM-Intermag Conference, Washington DC, USA, 2019/01/14-2019/01/18.
  25. T. Dohi, S. Duttagupta, Y. Takeuchi, S. Fukami, and H. Ohno, "Sign reversal of Dzyaloshinskii-Moriya effective field with ferromagnetic layer thickness in W/(Co)FeB/MgO heterostructures," (oral) 2019 Joint MMM-Intermag Conference, Washington DC, USA, 2019/01/14-2019/01/18.
  26. M. Bersweiler, H. Sato, and H. Ohno, "Magnetic and free-layer properties of MgO/(Co)FeB/MgO structure: Dependence on CoFeB composition," (oral) 2019 Joint MMM-Intermag Conference, Washington DC, USA, 2019/01/14-2019/01/18.
  27. J. Igarashi, S. Kanai, M. Shinozaki, J. Llandro, H. Sato, S. Fukami, and H. Ohno, "Asymmetric distortion of astroid curve with current bias in nanoscale magnetic tunnel junction," (oral) 2019 Joint MMM-Intermag Conference, Washington DC, USA, 2019/01/14-2019/01/18.
  28. B. Jinnai, H. Sato, S. Fukami, and H. Ohno , "Wide-temperature spin-orbit torque switching operation in high-thermal-stability Co/Pt-multilayer nanowire device," (poster) 16th RIEC International Workshop on Spintronics and 8th JSPS Core-to-Core Workshop on “New-Concept Spintronic Devices”, Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, 2019/01/09-2019/01/12.
  29. S. DuttaGupta, R. Itoh, S. Fukami, and H. Ohno, "Angular dependence of longitudinal and transverse magnetoresistance in antiferromagnet/nonmagnet metallic heterostructures ," (poster) 16th RIEC International Workshop on Spintronics and 8th JSPS Core-to-Core Workshop on “New-Concept Spintronic Devices”, Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, 2019/01/09-2019/01/12.
  30. C. Zhang, S. Fukami, S. DuttaGupta, H. Sato, and H. Ohno , "Time and spatial evolution of spin-orbit torque-induced switching in W/CoFeB/MgO ," (poster) 16th RIEC International Workshop on Spintronics and 8th JSPS Core-to-Core Workshop on “New-Concept Spintronic Devices”, Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, 2019/01/09-2019/01/12.
  31. K. Watanabe, B. Jinnai, S. Fukami, H. Sato, and H. Ohno, "Magnetization Reversal of a 1X/X nm Perpendicular Shape-Anisotropy MTJ ," (poster) 16th RIEC International Workshop on Spintronics and 8th JSPS Core-to-Core Workshop on “New-Concept Spintronic Devices”, Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, 2019/01/09-2019/01/12.
  32. T. Dohi, S. DuttaGupta, S. Fukami, and H. Ohno, "Ferromagnet thickness dependence of effective Dzyaloshinskii-Moriya field in W/(Co)FeB/MgO systems," (poster) 16th RIEC International Workshop on Spintronics and 8th JSPS Core-to-Core Workshop on “New-Concept Spintronic Devices”, Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, 2019/01/09-2019/01/12.
  33. J. Igarashi, M. Shinozaki, J. Llandro, H. Sato, S. Fukami and H. Ohno, "Effects of free layer size on magnetic properties and current induced magnetization switching in nanoscale CoFeB/MgO magnetic tunnel junctions," (poster) 16th RIEC International Workshop on Spintronics and 8th JSPS Core-to-Core Workshop on “New-Concept Spintronic Devices”, Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, 2019/01/09-2019/01/12.
  34. W. A. Borders, S. Fukami, and H. Ohno, "Analogue Spin-Orbit Torque Devices for Artificial Neural Network Applications ," (poster) 16th RIEC International Workshop on Spintronics and 8th JSPS Core-to-Core Workshop on “New-Concept Spintronic Devices”, Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, 2019/01/09-2019/01/12.
  35. Y. Takahashi, Y. Takeuchi, C. Zhang, B. Jinnai, S. Fukami, and H. Ohno, "Spin-orbit torque-induced switching of in-plane magnetized elliptic nanodots detected using planar Hall effect," (poster) 16th RIEC International Workshop on Spintronics and 8th JSPS Core-to-Core Workshop on “New-Concept Spintronic Devices”, Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, 2019/01/09-2019/01/12.
  36. R. Itoh, Y. Takeuchi, S. DuttaGupta, S. Fukami, and H. Ohno, "Antiferromagnet layer thickness dependence of spin-orbit torque in PtMn/CoFeB structures," (poster) 16th RIEC International Workshop on Spintronics and 8th JSPS Core-to-Core Workshop on “New-Concept Spintronic Devices”, Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, 2019/01/09-2019/01/12.
  37. S. Kanai, Y. Nakatani, F. Matsukura, and H. Ohno, "Thermal effect in magnetization dynamics induced by electric-field in a magnetic tunnel junction," (poster) CSRN-Osaka Annual Workshop 2018, Nambu Yoichiro Hall, Osaka University, 2018/12/13-2018/12/15.
  38. B. Jinnai, C. Zhang, A. Kurenkov, M. Bersweiler, H. Sato, S. Fukami, and H. Ohno, "Spin-orbit torque switching in perpendicular-magnetized Co/Pt multilayers," (poster) NIMS Academic Symposium, Tokyo, Japan, 2018/10/15.
  39. Y. Takahashi, Y. Takeuchi, C. Zhang, B. Jinnai, S. Fukami, and H. Ohno, "Spin-orbit torque switching in in-plane nanomagnets characterized by planar Hall effect," (poster) NIMS Academic Symposium, Tokyo, Japan, 2018/10/15.
  40. G. Krishnaswamy, A. Kurenkov, G. Sala, M. Baumgartner, F. Maccherozzi, S. Fukami, P. Gambardella, and H. Ohno, "Spin-orbit torque induced domain switching in antiferromagnet / ferromagnet heterostructures," (oral) Joint European Magnetic Symposia, Mainz, Germany, 2018/09/03-2018/09/07.
  41. S. DuttaGupta, R. Itoh, S. Fukami, and H. Ohno, "Angle dependent magnetoresistance in nonmagnet/antiferromagnet metallic heterostructures," (oral) Joint European Magnetic Symposia, Mainz, Germany, 2018/09/03-2018/09/07.
  42. G. Krishnaswamy, A. Kurenkov, G. Sala, M. Baumgartner, F. Maccherozzi, S. Fukami, P. Gambardella, and H. Ohno, "Spin-orbit torque induced domain switching in antiferromagnet / ferromagnet heterostructures," (oral) Annual Meeting of the Swiss Physical Society (SPS), Lausanne, Switzerland, 2018/08/28-2018/08/31.
  43. K. Watanabe, B. Jinnai, S. Fukami, H. Sato, and H. Ohno, "Magnetic tunnel junction scaling into the single-digit nanometer regime," (oral) 10th International School and Conference on Physics and Applications of Spin Phenomena in Solids (PASPS10), Linz, Austria, 2018/08/05-2018/08/09.
  44. J. Igarashi, J. Llandro, M. Shinozaki, H. Sato, S. Fukami, and H. Ohno, "Influence on magnetization switching of edge effects in nano-scale perpendicular-anisotropy CoFeB/MgO magnetic tunnel junctions," (poster) 10th International School and Conference on Physics and Applications of Spin Phenomena in Solids (PASPS10), Linz, Austria, 2018/08/05-2018/08/09.
  45. Y. Takeuchi, K. Furuya, Y. Takahashi, C Zhang, A. Okada, B. Jinnai, H. Sato, S. Fukami, and H. Ohno, "Spin-orbit torque in W/CoFeB/MgO heterostructures – Wide-range W resistivity dependence," (poster) The 21st International Conference on Magnetism (ICM2018), San Francisco, CA, USA, 2018/07/16-2018/07/20.
  46. A. Kurenkov, M. Baumgartner, G. Sala, G. Krishnaswamy, F. Maccherozzi, S. Fukami, P. Gambardella, and H. Ohno, "Observation of domains during spin-orbit torque induced memristive switching in antiferromagnet/ferromagnet heterostructures," (oral) The 21st International Conference on Magnetism (ICM2018), San Francisco, CA, USA, 2018/07/16-2018/07/20.
  47. S. DuttaGupta, A. Kurenkov, R. Itoh, A. Okada, S. Fukami, and H. Ohno, "Angular dependence of magnetoresistance in asymmetric and symmetric nonmagnet/antiferromagnet metallic heterostructures," (oral) The 21st International Conference on Magnetism (ICM2018), San Francisco, CA, USA, 2018/07/16-2018/07/20.
  48. R. Itoh, Y. Takeuchi, S. DuttaGupta, S. Fukami and H. Ohno, "Spin-orbit torque of PtMn/CoFeB evaluated by extended harmonic Hall measurement," (poster) The 21st International Conference on Magnetism (ICM2018), San Francisco, CA, USA, 2018/07/16-2018/07/20.
  49. K. Watanabe, B. Jinnai, S. Fukami, H. Sato, and H. Ohno, "Magnetization reversal mechanism of shape-anisotropy magnetic tunnel junctions," (poster) The 21st International Conference on Magnetism (ICM2018), San Francisco, CA, USA, 2018/07/16-2018/07/20.
  50. Y. Takahashi, Y. Takeuchi, C Zhang, B. Jinnai, S. Fukami and H. Ohno, "Spin-orbit torque induced switching of in-plane nanomagnet arrays evaluated through differential planar Hall effect," The 21st International Conference on Magnetism (ICM2018), San Francisco, CA, USA, 2018/07/16-2018/07/20.
  51. E. Jackson, J. Kim, S. DuttaGupta, S. Fukami, H. Ohno, M. Sun, T. Kubota, K. Takanashi, and A. Hirohata, "Non-Destructive Imaging of Buried Junctions Using Scanning Electron Microscopy," (oral) The 5th International Conference of Asian Union of Magnetics Societies (IcAUMS 2018), Jeju, Korea, 2018/06/03-2018/06/07.
  52. K. Watanabe, B. Jinnai, H. Sato, S. Fukami, and H. Ohno, "Shape-anisotropy magnetic tunnel junctions," (poster) 7th Workshop of the Core-to-Core Project Tohoku-York-Kaiserslautern, Kaiserslautern, Germany, 2018/05/28-2018/05/30.
  53. Y. Takeuchi, C. Zhang, A. Okada, H. Sato, S. Fukami, and H. Ohno, "Extended harmonic Hall measurement of spin-orbit torques in high-resistivity-W/CoFeB/MgO," (poster) 7th Workshop of the Core-to-Core Project Tohoku-York-Kaiserslautern, Kaiserslautern, Germany, 2018/05/28-2018/05/30.
  54. J. Igarashi, M. Shinozaki, J. Llandro, H. Sato, and H. Ohno, "Dependence of magnetic anisotropy on free-layer size in nanoscale magnetic tunnel junctions," (poster) 7th Workshop of the Core-to-Core Project Tohoku-York-Kaiserslautern, Kaiserslautern, Germany, 2018/05/28-2018/05/30.
  55. B. Jinnai, H. Sato, S. Fukami, and H. Ohno, "Nanoscale spin-orbit torque devices with Co/Pt multilayers for wide-temperature range applications," (oral) IEEE International Magnetics Conference (INTERMAG 2018), Singapore, 2018/04/23-2018/04/28.
  56. Y. Takeuchi, C. Zhang, A. Okada, H. Sato, S. Fukami, and H. Ohno, "Harmonic measurement of current induced spin-orbit torques in high-resistivity-W/CoFeB/MgO," (oral) IEEE International Magnetics Conference (INTERMAG 2018), Singapore, 2018/04/23-2018/04/28.
  57. K. Watanabe, B. Jinnai, S. Fukami, H. Sato, and H. Ohno, "X nm Magnetic Tunnel Junctions with Perpendicular Anisotropy," (oral) IEEE International Magnetics Conference (INTERMAG 2018), Singapore, 2018/04/23-2018/04/28.
  58. N. Ichikawa, T. Dohi, A. Okada, H. Sato, S. Fukami, and H. Ohno, "Electric-field effect on the exchange stiffness in CoFeB/MgO stacks," (oral) IEEE International Magnetics Conference (INTERMAG 2018), Singapore, 2018/04/23-2018/04/28.
  59. M. Shinozaki, J. Igarashi, H. Sato, and H. Ohno, "Effect of free-layer size on magnetic properties in nanoscale magnetic tunnel junctions," (oral) IEEE International Magnetics Conference (INTERMAG 2018), Singapore, 2018/04/23-2018/04/28.
Domestic
Plenary/Invited
  1. 深見俊輔、大野英男, "スピントロニクス素子を用いた新概念コンピューティング," (invited) リザバーコンピューティングワークショップ ~基礎から最前線まで~, JST東京本部、東京, 2019/10/24.
  2. 金井駿, "電界によるCoFeB/MgOの磁性変調の放射光による検出," (invited) 第9回実用スピントロニクス新分野創成研究会, 東京駅八重洲ホール、東京, 2019/10/02.
  3. S. Fukami, W. A. Borders, A. Kurenkov, and H. Ohno, "Artificial Neural Networks with Spintronics," (invited) 第43回日本磁気学会学術講演会, 京都大学、京都, 2019/09/25-2019/09/27.
  4. 深見俊輔, "スピントロニクス素子を用いた人工ニューラルネットワーク ," (invited) 第80回応用物理学会秋季学術講演会, 北海道大学、札幌, 2019/09/18-2019/09/21.
  5. W. A. Borders, H. Akima, S. Fukami, S. Moriya, S. Kurihara, Y. Horio, S. Sato, and H. Ohno, "Analogue Spin-Orbit Torque Device for Artificial-Neural-Network-Based Associative Memory Operation," (invited) 第80回応用物理学会秋季学術講演会, 北海道大学、札幌, 2019/09/18-2019/09/21.
  6. 金井駿, 深見俊輔, 松倉文礼, 大野英男, "スピントロニクス材料の 不揮発性記憶素子応用," (invited) 第11回放射光学会若手研究会, 東北大学片平さくらホール, 仙台市, 2019/08/23-2019/08/24.
  7. 深見俊輔, "不揮発性スピントロニクス素子とその応用," (invited) 東北大学電気通信研究所-早稲田大学ナノ・ライフ創新研究機構 共同プロジェクト研究(ナノエレクトロニクスに関する連携研究) 平成30 年度研究会, 早稲田大学 理工学術院(西早稲田キャンパス)、東京, 2019/02/26.
  8. 高橋佑,竹内祐太朗, 張超亮, 陣内佛霖, 深見俊輔, 大野英男, "プレーナーホール効果を用いた面内スピン軌道トルク素子の特性評価," (invited) 第2回スピントロニクス学術研究基盤と連携ネットワークシンポジウム, 東北大学金属材料研究所, 2019/02/20.
  9. 深見俊輔、大野英男, "不揮発性スピントロニクス素子技術 ー 大容量化、高速化、多機能化に向けた取り組み," (invited) 日本学術振興会「先端ナノデバイス・材料テクノロジー第151委員会」 平成30年度第6回研究会, 東京大学本郷キャンパス工学部, 2019/02/01.
  10. 深見俊輔, "スピントロニク素子の新機能創出," (invited) 東北大学電気通信研究所 共同プロジェクト研究会 「新規固体デバイス・回路を用いた脳型コンピューティングに関する研究」, 東北大学電気通信研究所, 2019/01/15.
  11. 深見俊輔、大野英男, "アナログスピントロニクス素子を用いた脳型情報処理," (invited) 応用物理学会・量子エレクトロニクス研究会「量子エレクトロニクスによる未来型情報処理」, 上智大学軽井沢セミナーハウス、長野, 2018/12/14-2018/12/16.
  12. 深見俊輔, "一桁ナノメートル磁気トンネル接合," (invited) 平成30年度東北大学電気通信研究所共同プロジェクト研究会 「電荷とスピンの制御に基づく精密物性科学の構築とデバイス応用」, 仙台, 2018/11/01-2018/11/02.
  13. 深見俊輔、大野英男, "アナログスピン軌道トルク素子を用いた人工神経回路網," (invited) 東京大学CSRN主催ワークショップ「スピン、ニューロモルフィック・コンピューティング」, 東京大学、東京, 2018/10/27.
  14. 深見俊輔、大野英男, "反強磁性/強磁性積層構造におけるスピン軌道トルク磁化反転," (invited) 第1回ナノスピン研究会「放射光を用いたナノスピン材料科学の新展開」, 東北大学、仙台, 2018/10/05.
  15. 大野英男, "スピントロニクスと産学連携," (invited) 第46回日本放射線技術学会秋季学術大会, 仙台、東京, 2018/10/04-2018/10/06.
  16. W. A. Borders, S. Fukami, and H. Ohno, "Analog spin-orbit torque switching for neuromorphic application (Invited)," (invited) 第42回日本磁気学会学術講演会, 日本大学理工学部駿河台キャンパス、東京, 2018/09/11-2018/09/14.
Contributed
  1. V. Zoysa, R. Itoh, Y. Takeuchi, S. DuttaGupta, S. Fukami, and H. Ohno, "Composition dependence of spin-orbit torque in Pt1-xMnx/CoFeB heterostructures," (oral) 第80回応用物理学会秋季学術講演会, Hokkaido University, Sapporo, Japan, 2019/09/18-2019/09/21.
  2. S. DuttaGupta, A. Kurenkov, O. Tretiakov, G. Krishnaswamy, G. Sala, V. Krizakova, F. Maccherozzi, S. Dhesi, P. Gambardella, S. Fukami, H. Ohno, "Spin-orbit torque induced switching of antiferromagnet/non-magnet metallic structure," (oral) 第80回応用物理学会秋季学術講演会, Hokkaido University, Sapporo, Japan, 2019/09/18-2019/09/21.
  3. A. Kurenkov, S. DuttaGupta, C. Zhang, S. Fukami, Y. Horio, H. Ohno, "Antiferromagnet/Ferromagnet Heterostructures for Artificial Neurons and Synapses," (oral) 第80回応用物理学会秋季学術講演会, Hokkaido University, Sapporo, Japan, 2019/09/18-2019/09/21.
  4. J. Yoon, Y. Takeuchi, R. Itoh, S. Kanai, S. Fukami, and H. Ohno, "Control of crystal orientation of non-collinear antiferromagnetic Mn3Sn thin films prepared by sputtering," (oral) 第80回応用物理学会秋季学術講演会, Hokkaido University, Sapporo, Japan, 2019/09/18-2019/09/21.
  5. M. Shinozaki, T. Dohi, J. Igarashi, J. Llandro, S. Kanai, S. Fukami, H. Sato, and H. Ohno, "Edge state of nanoscale magnetic tunnel junctions investigated by spin-wave resonance," (oral) 第66回応用物理学会春季学術講演会, 東京工業大学(大岡山キャンパス)、東京, 2019/03/09-2019/03/12.
  6. A. Okada, Y. Takeuchi, K. Furuya, C. Zhang, H. Sato, S. Fukami, and H. Ohno, "Determination of spin-orbit torque by spin-torque ferromagnetic resonance free from spin-pumping," (oral) 第66回応用物理学会春季学術講演会, 東京工業大学(大岡山キャンパス)、東京, 2019/03/09-2019/03/12.
  7. R. Itoh, Y. Takeuchi, S. DuttaGupta, S. Fukami, and H. Ohno, "Temperature dependence of spin-orbit torques in an antiferromagnet/ferromagnet heterostructure," (oral) 第66回応用物理学会春季学術講演会, 東京工業大学(大岡山キャンパス)、東京, 2019/03/09-2019/03/12.
  8. A. Kurenkov, M. Baumgartner, G. Sala, G. Krishnaswamy, F. Maccherozzi, S. Fukami, P. Gambardella and H. Ohno, "Observation of memristive domain patterns during spin-orbit torque switching in antiferromagnet/ferromagnet heterostructures," (oral) 第66回応用物理学会春季学術講演会, 東京工業大学(大岡山キャンパス)、東京, 2019/03/09-2019/03/12.
  9. T. Dohi, S. DuttaGupta, S. Fukami, and H. Ohno, "Ferromagnetic layer thickness dependent domain wall chirality and sign of effective Dzyaloshinskii-Moriya field in W/(Co)FeB/MgO systems," (oral) 第66回応用物理学会春季学術講演会, 東京工業大学(大岡山キャンパス)、東京, 2019/03/09-2019/03/12.
  10. K. Furuya, Y. Takeuchi, C. Zhang, B. Jinnai, Y. Takahashi, S. Fukami, and H. Ohno, "Enhancement of spin-orbit torque in W/CoFeB/MgO by controlling W resistivity," (poster) 第66回応用物理学会春季学術講演会, 東京工業大学(大岡山キャンパス)、東京, 2019/03/09-2019/03/12.
  11. 古屋海渡、竹内祐太朗、張超亮、陣内佛霖、深見俊輔、大野英男, "W/CoFeB/MgO ヘテロ構造におけるスピン軌道トルク," (poster) 東北大学電気通信研究所-早稲田大学ナノ・ライフ創新研究機構 共同プロジェクト研究(ナノエレクトロニクスに関する連携研究) 平成30年度研究会, 早稲田大学 理工学術院(西早稲田キャンパス)、東京, 2019/02/26.
  12. 篠崎基矢、五十嵐純太、Justin Llandro、深見俊輔、佐藤英夫、大野英男, "強磁性共鳴を用いたナノスケール磁気トンネル接合の特性評価," (oral) 東北大学電気通信研究所-早稲田大学ナノ・ライフ創新研究機構 共同プロジェクト研究(ナノエレクトロニクスに関する連携研究) 平成30年度研究会, 早稲田大学 理工学術院(西早稲田キャンパス)、東京, 2019/02/26.
  13. S. Kanai, Y. Nakatani, F. Matsukura, and H. Ohno, "Electric-field Induced Magnetization Dynamics in Nanoscale Magnetic Tunnel Junctions ," (poster) Center for Nation-Wide Cooperative Research on ICT, FY 2018 RIEC Annual Meeting on Cooperative Research Projects "Compass for Next-Gen ICT", Sendai, Research Institute of Electrical Communication Tohoku University, 2019/02/21.
  14. E. C. I. Enobio, S. Kanai, and S. Fukami, "Coplanar waveguide size and sample size dependence of damping constant of CoFeB-MgO magnetic tunnel junction structure with perpendicular easy axis by vector-network-analyzer ferromagnetic resonance spectroscopy," (poster) Center for Nation-Wide Cooperative Research on ICT, FY 2018 RIEC Annual Meeting on Cooperative Research Projects "Compass for Next-Gen ICT", Sendai, Research Institute of Electrical Communication Tohoku University, 2019/02/21.
  15. S. Sasaki, S. Fukami, T. Yuge, and Y. Hirayama, "Low-frequency spectrum of local magnetic field fluctuation at As-nuclear-spin sites in bulk GaAs," (poster) Center for Nation-Wide Cooperative Research on ICT, FY 2018 RIEC Annual Meeting on Cooperative Research Projects "Compass for Next-Gen ICT", Sendai, Research Institute of Electrical Communication Tohoku University, 2019/02/21.
  16. S. Kanai, Y. Nakatani, F. Matsukura, and H. Ohno, "Electric-field Induced Magnetization Dynamics in a Nanoscale Magnetic Tunnel Junction," (poster) One-Day Symposium on Spintronic Properties of Graphene and Related 2D Materials, 東京大学柏の葉キャンパス駅前サテライト、千葉県柏市, 2018/11/22.
  17. Z. Wang, M. Shinozaki, A. Okada, M. Bersweiler, S. Kanai, H. Sato, S. Fukami and H. Ohno, "Homodyne-detected ferromagnetic resonance in nanoscale MgO/FeB/MgO magnetic tunnel junction," (poster) 第37回電子材料シンポジウム, ホテル&リゾーツ長浜、滋賀県長浜市, 2018/10/10-2018/10/12.
  18. T. Koga, K. Watanabe, W. A. Borders, S. Fukami and H. Ohno, "Stack structure dependence of magnetic properties of granular films for spintronics device applications," (poster) 第37回電子材料シンポジウム, ホテル&リゾーツ長浜、滋賀県長浜市, 2018/10/10-2018/10/12.
  19. T. Funatsu, J. Igarashi, K. Watanabe, S. Fukami, H. Sato and H. Ohno, "Magnetic coupling of perpendicular easy axis FeB layers thorough MgO," (poster) 第37回電子材料シンポジウム, ホテル&リゾーツ長浜、滋賀県長浜市, 2018/10/10-2018/10/12.
  20. K. Furuya, Y. Takeuchi, Y. Takahashi, C. Zhang, A. Okada, B. Jinnai, S. Fukami and H. Ohno, "Enhancement of spin-orbit torque efficiency in W/CoFeB/MgO by engineering W resistivity," (poster) 第37回電子材料シンポジウム, ホテル&リゾーツ長浜、滋賀県長浜市, 2018/10/10-2018/10/12.
  21. K. Miyasaka, T. Saino, C. Zhang, S. Fukami and H. Ohno, "Evaluation of write-error rate of spin-orbit torque induced magnetization switching," (poster) 第37回電子材料シンポジウム, ホテル&リゾーツ長浜、滋賀県長浜市, 2018/10/10-2018/10/12.
  22. C. Zhang, Y. Takeuchi, Y. Takahashi, S. Fukami, and H. Ohno, "Magnetization switching combining spin-orbit torque and spin-transfer torque," (oral) 第79回応用物理学会秋季学術講演会, 名古屋国際会議場、名古屋, 2018/09/18-2018/09/21.

プレスリリース

  1. "室温動作スピントロニクス素子を用いて 量子アニーリングマシンの機能を実現", 2019/09/19
  2. "ニューロンとシナプスの動作を再現する変幻自在なスピントロニクス素子を開発 ~脳を模した革新的情報処理への応用に期待~ ", 2019/04/17

新聞雑誌発表

  1. 日刊工業新聞 (朝刊9, "室温中で効率計算", 2019/09/19

受賞

  1. W. A. Borders, H. Akima, S. Fukami, S. Moriya, S. Kurihara, Y. Horio, S. Sato, and H. Ohno, 応用物理学会優秀論文賞, 日本応用物理学会, "Analogue spin–orbit torque device for artificial-neural-network-based associative memory operation", 2019/08/02
  2. 土肥 昂尭, 応用物理学会講演奨励賞, 日本応用物理学会, "Ferromagnetic layer thickness dependent domain wall chirality and sign of effective Dzyaloshinskii-Moriya field in W/(Co)FeB/MgO systems", 2019/05/23
  3. 深見 俊輔, 田中貴金属記念財団ゴールド賞, 田中貴金属記念財団, "CoPt系ナノコンポジット材料を用いたアナログナノスピンメモリ素子の創製と脳型情報処理応用", 2019/03/29
  4. 渡部 杏太, 平成30年度工学研究科長賞, 東北大学大学院 工学研究科, "", 2019/03/27
  5. A. Kurenkov, Best Poster Award, 2nd Symposium for World Leading Research Centers -Materials Science and Spintronics , "Observation of memristive domain patterns during spin-orbit torque switching in antiferromagnet/ferromagnet heterostructures", 2019/02/19