電気通信研究所 深見准教授研究室

発表

学術論文 著書・解説記事 学会発表 新聞雑誌発表
 

学術論文

  1. 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
  2. Y. Takahashi, Y. Takeuchi, C. Zhang, B. Jinnai , S. Fukami, and H. Ohno,
    "Spin-orbit torque-induced switching of inplane 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
  3. 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
  4. 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
  5. 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
  6. 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
  7. S. Fukami, and H. Ohno,
    "Perspective: Spintronic synapse for artificial neural network,"
    Journal of Applied Physics 124, 151904 (2018).
    doi:10.1063/1.5042317
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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. 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).
  2. 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).
  3. 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

International
Plenary/Invited
  1. S. Fukami, "Spintronic Devices for Neural Networks (Invited)," APS March Meeting 2019, Boston, Massachusetts, USA, 2019/03/03-2019/03/07.
  2. 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.
  3. M. Shinozaki, J. Igarashi, J. Llandro (*Speaker), 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.
  4. 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.
  5. 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.
  6. H. Ohno, "Spintronics Nanodevices (Plenary Lecture)," 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.
  7. 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.
  8. 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.
  9. 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.
  10. W. A. Borders, S. Fukami, and H. Ohno, "Antiferromagnet/Ferromagnet Based Spin-Orbit Torque Devices for Hopfield Network Applications (Invited)," Explorative Workshop: Spintronic Perspectives on Neuromorphic Computing, Jülich, Germany, 2018/08/13-2018/08/15.
  11. 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.
  12. 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.
  13. 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.
  14. 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.
  15. 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.
  16. 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.
  17. 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.
  18. 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.
  19. 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.
  20. S. Fukami, "Potential and challenges of nonvolatile spintronics devices for integrated circuits applications (Invited Lecture)," 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.
  21. 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.
  22. H. Ohno, "Spintronics Nanodevices (Plenary)," IEEE International Magnetics Conference (INTERMAG 2018), Singapore, 2018/04/23-2018/04/28.
Contributed
  1. S. Kanai, Y. Nakatani, F. Matsukura, and H. Ohno, "Thermal Effect in Electric-field Induced Magnetization Switching in Nanoscale Magnetic Tunnel Junctions," Tenth International School and Conference on Spintronics and Quantum Information Technology, Chicago, USA, 2019/06/24-2019/06/27.
  2. 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," 2nd Tohoku/SG-SPIN Workshop in Spintronics, National University of Singapore, Singapore, 2019/02/22-2019/02/23.
  3. 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," 2nd Tohoku/SG-SPIN Workshop in Spintronics, National University of Singapore, Singapore, 2019/02/22-2019/02/23.
  4. S. Kanai, Y. Nakatani, F. Matsukura, and H. Ohno, "Magnetization Dynamics Induced by Electric-field in a Nanoscale Magnetic Tunnel Junction," The 2nd Symposium for World Leading Research Centers, Sendai International Center, Sendai, 2019/02/15-2019/02/17.
  5. S. DuttaGupta, R. Itoh, S. Fukami and H. Ohno, "Spin Hall Magnetoresistance in antiferromagnet/non-magnet metallic heterostructures," The 2nd Symposium for World Leading Research Centers, Sendai International Center, Sendai, 2019/02/15-2019/02/17.
  6. 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," The 2nd Symposium for World Leading Research Centers, Sendai International Center, Sendai, 2019/02/15-2019/02/17.
  7. 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," The 2nd Symposium for World Leading Research Centers, Sendai International Center, Sendai, 2019/02/15-2019/02/17.
  8. C. Zhang, Y. Takeuchi, Y. Takahashi, S. Fukami, and H. Ohno, "Sub-ns switching by combining SOT and STT in MTJ devices," The 2nd Symposium for World Leading Research Centers, Sendai International Center, Sendai, 2019/02/15-2019/02/17.
  9. 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," 2019 Joint MMM-Intermag Conference, Washington, USA, 2019/01/14-2019/01/18.
  10. 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," 2019 Joint MMM-Intermag Conference, Washington, USA, 2019/01/14-2019/01/18.
  11. 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," 2019 Joint MMM-Intermag Conference, Washington, USA, 2019/01/14-2019/01/18.
  12. 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," 2019 Joint MMM-Intermag Conference, Washington, USA, 2019/01/14-2019/01/18.
  13. M. Bersweiler, H. Sato, and H. Ohno, "Magnetic and free-layer properties of MgO/(Co)FeB/MgO structure: Dependence on CoFeB composition," 2019 Joint MMM-Intermag Conference, Washington, USA, 2019/01/14-2019/01/18.
  14. 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," 2019 Joint MMM-Intermag Conference, Washington, USA, 2019/01/14-2019/01/18.
  15. 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 ," 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.
  16. S. DuttaGupta, R. Itoh, S. Fukami and H. Ohno, "Angular dependence of longitudinal and transverse magnetoresistance in antiferromagnet/nonmagnet metallic heterostructures ," 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.
  17. 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 ," 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.
  18. K. Watanabe, B. Jinnai, S. Fukami, H. Sato and H. Ohno, "Magnetization Reversal of a 1X/X nm Perpendicular Shape-Anisotropy MTJ ," 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.
  19. T. Dohi, S. DuttaGupta, S. Fukami, and H. Ohno, "Ferromagnet thickness dependence of effective Dzyaloshinskii-Moriya field in W/(Co)FeB/MgO systems," 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.
  20. 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," 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.
  21. W. A. Borders, S. Fukami and H. Ohno, "Analogue Spin-Orbit Torque Devices for Artificial Neural Network Applications ," 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. 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 ," 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.
  23. R. Itoh, Y. Takeuchi, S. DuttaGupta, S. Fukami, and H. Ohno, "Antiferromagnet layer thickness dependence of spin-orbit torque in PtMn/CoFeB structures," 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.
  24. S. Kanai, Y. Nakatani, F. Matsukura, and H. Ohno, "Thermal effect in magnetization dynamics induced by electric-field in a magnetic tunnel junction," CSRN-Osaka Annual Workshop 2018, Nambu Yoichiro Hall, Osaka University, 2018/12/13-2018/12/15.
  25. 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," NIMS Academic Symposium, Tokyo, Japan, 2018/10/15.
  26. Y. Takahashi, Y. Takeuchi, C. Zhang, B. Jinnai (*Presenter), S. Fukami, and H. Ohno, "Spin-orbit torque switching in in-plane nanomagnets characterized by planar Hall effect," NIMS Academic Symposium, Tokyo, Japan, 2018/10/15.
  27. 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," Joint European Magnetic Symposia, Mainz, Germany, 2018/09/03-2018/09/07.
  28. S. DuttaGupta, R. Itoh, S. Fukami, and H. Ohno, "Angle dependent magnetoresistance in nonmagnet/antiferromagnet metallic heterostructures," Joint European Magnetic Symposia, Mainz, Germany, 2018/09/03-2018/09/07.
  29. 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," Annual Meeting of the Swiss Physical Society (SPS), Lausanne, Switzerland, 2018/08/28-2018/08/31.
  30. K. Watanabe, B. Jinnai (*Speaker), S. Fukami, H. Sato, and H. Ohno, "Magnetic tunnel junction scaling into the single-digit nanometer regime," 10th International School and Conference on Physics and Applications of Spin Phenomena in Solids (PASPS10), Linz, Austria, 2018/08/05-2018/08/09.
  31. J. Igarashi, J. Llandro (*Presenter), 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," 10th International School and Conference on Physics and Applications of Spin Phenomena in Solids (PASPS10), Linz, Austria, 2018/08/05-2018/08/09.
  32. 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," The 21st International Conference on Magnetism (ICM2018), San Francisco, CA, USA, 2018/07/16-2018/07/20.
  33. 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," The 21st International Conference on Magnetism (ICM2018), San Francisco, CA, USA, 2018/07/16-2018/07/20.
  34. 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," The 21st International Conference on Magnetism (ICM2018), San Francisco, CA, USA, 2018/07/16-2018/07/20.
  35. R. Itoh, Y. Takeuchi, S. DuttaGupta, S. Fukami and H. Ohno, "Spin-orbit torque of PtMn/CoFeB evaluated by extended harmonic Hall measurement," The 21st International Conference on Magnetism (ICM2018), San Francisco, CA, USA, 2018/07/16-2018/07/20.
  36. K. Watanabe, B. Jinnai, S. Fukami, H. Sato, and H. Ohno, "Magnetization reversal mechanism of shape-anisotropy magnetic tunnel junctions," The 21st International Conference on Magnetism (ICM2018), San Francisco, CA, USA, 2018/07/16-2018/07/20.
  37. 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.
  38. 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," The 5th International Conference of Asian Union of Magnetics Societies (IcAUMS 2018), Jeju, Korea, 2018/06/03-2018/06/07.
  39. K. Watanabe, B. Jinnai, H. Sato, S. Fukami, and H. Ohno, "Shape-anisotropy magnetic tunnel junctions," 7th Workshop of the Core-to-Core Project Tohoku-York-Kaiserslautern, Kaiserslautern, Germany, 2018/05/28-2018/05/30.
  40. 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," 7th Workshop of the Core-to-Core Project Tohoku-York-Kaiserslautern, Kaiserslautern, Germany, 2018/05/28-2018/05/30.
  41. J. Igarashi, M. Shinozaki, J. Llandro, H. Sato, and H. Ohno, "Dependence of magnetic anisotropy on free-layer size in nanoscale magnetic tunnel junctions," 7th Workshop of the Core-to-Core Project Tohoku-York-Kaiserslautern, Kaiserslautern, Germany, 2018/05/28-2018/05/30.
  42. B. Jinnai, H. Sato, S. Fukami, and H. Ohno, "Nanoscale spin-orbit torque devices with Co/Pt multilayers for wide-temperature range applications," IEEE International Magnetics Conference (INTERMAG 2018), Singapore, 2018/04/23-2018/04/28.
  43. 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," IEEE International Magnetics Conference (INTERMAG 2018), Singapore, 2018/04/23-2018/04/28.
  44. K. Watanabe, B. Jinnai, S. Fukami, H. Sato, and H. Ohno, "X nm Magnetic Tunnel Junctions with Perpendicular Anisotropy," IEEE International Magnetics Conference (INTERMAG 2018), Singapore, 2018/04/23-2018/04/28.
  45. N. Ichikawa, T. Dohi (*Speaker), A. Okada, H. Sato, S. Fukami, and H. Ohno, "Electric-field effect on the exchange stiffness in CoFeB/MgO stacks," IEEE International Magnetics Conference (INTERMAG 2018), Singapore, 2018/04/23-2018/04/28.
  46. M. Shinozaki, J. Igarashi (*Speaker), H. Sato, and H. Ohno, "Effect of free-layer size on magnetic properties in nanoscale magnetic tunnel junctions," IEEE International Magnetics Conference (INTERMAG 2018), Singapore, 2018/04/23-2018/04/28.
Domestic
Plenary/Invited
  1. 深見俊輔, "不揮発性スピントロニクス素子とその応用(招待講演)," 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 年度研究会プログラム, 早稲田大学 理工学術院(西早稲田キャンパス)、東京, 2019/02/26.
  2. 高橋佑,竹内祐太朗, 張超亮, 陣内佛霖, 深見俊輔(*講演者), 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(招待講演)," 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.
  3. 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(招待講演)," 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.
  4. 深見俊輔, "スピントロニク素子の新機能創出(招待講演)," 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.
  5. 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(招待講演)," 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.
  6. 深見俊輔, "一桁ナノメートル磁気トンネル接合(招待講演)," 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.
  7. 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(招待講演)," 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.
  8. 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(招待講演)," 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.
  9. 大野英男, "スピントロニクスと産学連携(大会特別講演)," 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.
  10. W. A. Borders, S. Fukami, and H. Ohno, "Analog spin-orbit torque switching for neuromorphic application (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. 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," 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.
  2. A. Okada, Y. Takeuchi (*presenter), 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," 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.
  3. R. Itoh, Y. Takeuchi, S. DuttaGupta, S. Fukami, and H. Ohno, "Temperature dependence of spin-orbit torques in an antiferromagnet/ferromagnet heterostructure," 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.
  4. 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," 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.
  5. 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," 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. 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," 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. 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," 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. 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," 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.
  9. S. Kanai, Y. Nakatani, F. Matsukura, and H. Ohno, "Electric-field Induced Magnetization Dynamics in Nanoscale Magnetic Tunnel Junctions ," 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.
  10. 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," 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.
  11. S. Sasaki, S. Fukami, T. Yuge, and Y. Hirayama, "Low-frequency spectrum of local magneticc field fluctuatiojn at As-nuclear-spin sites in bulk GaAs," 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.
  12. S. Kanai, Y. Nakatani, F. Matsukura, and H. Ohno, "Electric-field Induced Magnetization Dynamics in a Nanoscale Magnetic Tunnel Junction," 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.
  13. 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," 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.
  14. 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," 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.
  15. T. Funatsu, J. Igarashi, K. Watanabe, S. Fukami, H. Sato and H. Ohno, "Magnetic coupling of perpendicular easy axis FeB layers thorough MgO," 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.
  16. 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," 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.
  17. K. Miyasaka, T. Saino, C. Zhang, S. Fukami and H. Ohno, "Evaluation of write-error rate of spin-orbit torque induced magnetization switching," 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. C. Zhang, Y. Takeuchi, Y. Takahashi, S. Fukami, and H. Ohno, "Magnetization switching combining spin-orbit torque and spin-transfer torque," 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.

新聞雑誌発表

  1. 日経新聞朝刊, "容量 DRAMの10倍", 2018/02/19