Dr. Marui joined us as a Postdoctoral Fellow
Dr. Yukihiro Marui joined us as a Postdoctoral Fellow.
Dr. Yoon and Prof. Takeuchi are awarded the JSAP Young Scientist Award
J.-Y. Yoon (D3) and Y. Takeuchi (Assistant Professor) was awarded the JSAP Young Scientist Award for their paper “Crystal orientation and anomalous Hall effect of sputter-deposited non-collinear antiferromagnetic Mn3Sn thin films” [Appl. Phys. Express 13, 013001 (2020)]. The ceremony and Young Scientist Award Speech will be held in the 70th JSAP Spring Meeting 2023. Congratulations!
Prof. Åkerman has been appointed to a post at the Research Institute of Electrical Communication (RIEC)
Professor Johan Åkerman, a professor of the University of Gothenburg in Sweden, has been appointed to a post at the Research Institute of Electrical Communication (RIEC) of Tohoku University through a Cross Appointment System, and has been named the “Professor, University Research Lead”.
He is going to head up a new laboratory “Innovative Spintronic Device Laboratory” and Professor Shunsuke Fukami will support the startup of the lab.
The announcement from Tohoku University is here.
Presentation given in the 68th Annual IEEE International Electron Devices Meeting (IEDM2022)
Our collaborative research with UC Santa Barbara and University of Messina entitled “Experimental evaluation of simulated quantum annealing with MTJ-augmented p-bits” by A. Grimaldi, K. Selcuk, N. A. Aadit, K. Kobayashi, Q. Cao, S. Chowdhury, G. Finocchio, S. Kanai, H. Ohno, S. Fukami and K. Y. Camsari was presented in the 68th Annual IEEE International Electron Devices Meeting (IEDM2022) on December 6th in San Francisco.
Press release: “Researchers Develop a Scaled-up Spintronic Probabilistic Computer”
Paper by Mr. Kobayashi et al. published in Physical Review Applied
Our paper “External-Field-Robust Stochastic Magnetic Tunnel Junctions Using a Free Layer with Synthetic Antiferromagnetic Coupling” by K. Kobayashi, K. Hayakawa, J. Igarashi, W. A. Borders, S. Kanai, H. Ohno and S. Fukami was published in Physical Review Applied.
Interview to Prof. Tetsuo Endoh of the CIES and Prof. Fukami published in Nature
An interview to Prof. Tetsuo Endoh of the CIES and Prof. Fukami was published online in an article titled “Spintronics enters the mainstream” as a part of “Focal Point on Nanotechnology in Japan” in Nature. PDF version of the printed article can be downloaded here.
Paper published in Physical Review Applied
Our paper “Large Exotic Spin Torques in Antiferromagnetic Iron Rhodium” by J. Gibbons, T. Dohi, V. P. Amin, F. Xue, H. Ren, J.-W. Xu, H. Arava, S. Shim, H. Saglam, Y. Liu, J. E. Pearson, N. Mason, A. K. Petford-Long, P. M. Haney, M. D. Stiles, E. E. Fullerton, A. D. Kent, S. Fukami, and A. Hoffmann was published in Physical Review Applied.
Prof. Fukami is awarded the 2022 Achievement Award of the Magnetic Society of Japan
Professor Fukami was awarded the 2022 Achievement Award of the Magnetic Society of Japan for his achievement of “Development of new-functional spintronics devices and its application to unconventional computing”. Congratulations!
Paper published in Physical Review Materials
Our paper “Anisotropic magnetotransport in the layered antiferromagnet TaFe1.25Te3” by R. Roy Chowdhury, S. DuttaGupta, C. Patra, A. Kataria, S. Fukami, and R. P. Singh was published in Physical Review Materials.
Dr. Samik DuttaGupta took off
Dr. Samik DuttaGupta (received Ph.D. in 2016) resigned from the Assistant Professor of CSIS and left for India to be assigned to an Associate Professor of Saha Institute of Nuclear Physics. We wish you great success!
Paper by Mr. Funatsu et al. published in Nature Communications
Our paper “Local bifurcation with spin-transfer torque in superparamagnetic tunnel junctions” by Takuya Funatsu, Shun Kanai, Jun’ichi Ieda, Shunsuke Fukami, and Hideo Ohno was published in Nature Communications.
Press release: “From Bits to p-bits: One Step Closer to Probabilistic Computing“
Mr. Uchimura is awarded the Best English Presentation Award
Mr. T. Uchimura (M2) was awarded the Best English Presentation Award in the JSAP Spring Meeting. The title of the presentation was “Observation of non-collinear antiferromagnetic domain structure in epitaxial Mn3Sn thin films”. Congratulations!
Paper published in Physical Review Applied
Our paper “Large Antisymmetric Interlayer Exchange Coupling Enabling Perpendicular Magnetization Switching by an In-Plane Magnetic Field” by H. Masuda, T. Seki, Y. Yamane, R. Modak, K. Uchida, J. Ieda, Y.-C. Lau, S. Fukami, and K. Takanashi was published in Physical Review Applied.
Prof. Ohno has been granted the title of Doctor Honoris Causa from the University of Lorraine
Professor Ohno, the current president of Tohoku University, has been granted the title of Doctor Honoris Causa from the University of Lorraine. The ceremony video is available.
Paper by Mr. Uchimura et al. published in Applied Physics Letters
Our paper “Observation of domain structure in non-collinear antiferromagnetic Mn3Sn thin films by magneto-optical Kerr effect” by T. Uchimura, J. Yoon, Y. Sato, Y. Takeuchi, S. Kanai, R. Takechi, K. Kishi, Y. Yamane, S. DuttaGupta, J. Ieda, H. Ohno, and S. Fukami has been published in Applied Physics Letters.
Paper by Prof. Yamane et al. published in Physical Review Letters
Our paper “Theory of Emergent Inductance with Spin-Orbit Coupling Effects” by Y. Yamane, S. Fukami, and J. Ieda was published in Physical Review Letters.
Paper by Prof. Kanai et al. published in Proceedings of National Academy of Science of the United States of America
Our paper “Generalized scaling of spin qubit coherence in over 12,000 host materials” by Shun Kanai, F. Joseph Heremans, Hosung Seo, Gary Wolfowicz, Christopher P. Anderson, Sean E. Sullivan, Mykyta Onizhuk, Giulia Galli, David D. Awschalom, and Hideo Ohno was published in Proceedings of National Academy of Science of the United States of America.
Press release: “A Mathematical Shortcut for Determining Quantum Information Lifetimes“
Mr. Shinozaki, Mr. Abe, Mr. Takechi, and Mr. Hayakawa received their degree
Mr. Shinozaki (Doctor), Mr. Abe (Master), Mr. Takechi (Master), and Mr. Hayakawa (Master) received their degree. Congratulations! We hope for your success in new place.
Prof. Fukami was selected to the Inamori Research Institute for Science (InaRIS) Fellowship Program
Professor Fukami was selected to the Inamori Research Institute for Science (InaRIS) Fellowship Program. The accepted research topic is “Induction of “intelligence” in materials by artificial control and its development to computing”.
InaRIS Fellow Profile Video on YouTube is here.
Mr. Shinozaki is awarded the Graduate School of Engineering Award
Mr. Motoya Shinozaki (D3) is awarded the Graduate School of Engineering Award. Congratulations!
Paper published in Physics Reports
Our review paper “Domain wall memory: Physics, materials, and devices” by D. Kumar, T. Jin, R. Sbiaa, M. Kläui, S. Bedanta, S. Fukami, D. Ravelosona, S.-H. Yang, X. Liu, S.N. Piramanayagam was published in Physics Reports.
Interview with Prof. Fukami featured in Nature
An interview to Prof. Fukami was published online in an article titled “Laying the groundwork for a more resilient planet” as a part of “Big 5 science nations” in Nature.
“Graduation research presentations” held
We hold a meeting of the graduation research presentations given by 6 students from Ikeda lab, Otsuka lab, and Fukami lab.
Paper by Prof. Takeuchi et al. published in Applied Physics Letters
Our paper “Nanometer-thin L10-MnAl film with B2-CoAl underlayer for high-speed and high-density STT-MRAM: Structure and magnetic properties” by Y. Takeuchi, R. Okuda, J. Igarashi, B. Jinnai, T. Saino, S. Ikeda, S. Fukami, and H. Ohno was published in Applied Physics Letters.
This paper is selected to Editor’s Pick.
Outreach video of spintronics research released
Outreach video of spintronics research sponsored by the IEEE Magnetics Society was released. Prof. Fukami and Prof. Hyunsoo Yang of the National University of Singapore appear in the video.
Paper published in Physical Review Applied
Our paper “Hardware-Aware In Situ Learning Based on Stochastic Magnetic Tunnel Junctions” by J. Kaiser, W. A. Borders, K. Y. Camsari, S. Fukami, H. Ohno, and S. Datta was published in Physical Review Applied.
This paper is selected to Editors’ Suggestion.
Prof. Ohno is awarded the IEEE Magnetics Society’s 2022 Achievement Award
Professor Hideo Ohno received the IEEE Magnetics Society’s 2022 Achievement Award for “fundamental discoveries of spintronic phenomena and their applications in memory and computing technologies.”
Paper published in Physical Review Materials
Our paper “Modification of unconventional Hall effect with doping at the nonmagnetic site in a two-dimensional van der Waals ferromagnet” by R. R. Chowdhury, C. Patra, S. DuttaGupta, S. Satheesh, S. Dan, S. Fukami & R. P. Singh was published in Physical Review Materials.
Prof. Ohno has been added to the Royal Swedish Academy of Engineering Sciences
Professor Ohno, the current president of Tohoku University, has been added to the International Fellows of the Royal Swedish Academy of Engineering Sciences.
Presentation will be given in the 67th Annual IEEE International Electron Devices Meeting (IEDM2021)
We present “Fast Switching Down to 3.5 ns in Sub-5-nm Magnetic Tunnel Junctions Achieved by Engineering Relaxation Time” (by B. Jinnai, J. Igarashi, T. Shinoda, K. Watanabe, S. Fukami, and H. Ohno) in the 67th Annual IEEE International Electron Devices Meeting (IEDM2021) on December 11-15 in San Francisco.
Press release: “Magnetic Tunnel Junction Technology for the Angstrom Semiconductor Era”
Paper by Prof. Takeuchi et al. published in Applied Physics Letters
Our paper “Temperature dependence of intrinsic critical current in perpendicular easy axis CoFeB/MgO magnetic tunnel junctions” by Y. Takeuchi, E. C. I. Enobio, B. Jinnai, H. Sato, S. Fukami, and H. Ohno was published in Applied Physics Letters.
This paper is selected to Featured Articles.
Paper published in Nature Materials
Our paper “Memristive control of mutual spin Hall nano-oscillator synchronization for neuromorphic computing” by M. Zahedinejad, H. Fulara, R. Khymyn, A. Houshang, M. Dvornik, S. Fukami, S. Kanai, H. Ohno and J. Åkerman was published in Nature Materials.
Press release is here.
“1st Online RIEC International Workshop on Spintronics” held
The online session of the 1st Online RIEC International Workshop on Spintronics was held. We had more than 400 registrants from more than 30 countries/regions. We are grateful to all the panelists, invited speakers, and registrants who actively joined the discussion.
You can watch the recorded video of the live session and invited talks on the on-demand cite at least until the end of March, 2022. Anyone who registered can access the on-demand page.
Mr. Kobayashi is awarded the Best Poster Award, Mr. Kishi is awarded the Poster Award
K. Kobayashi (M1) is awarded the Best Poster Award in The 5th Symposium for The Core Research Clusters for Materials Science and Spintronics for his presentation entitled “Physical mechanism governing sigmoid curves of superparamagnetic tunnel junctions”, and K. Kishi (M1) is awarded the Poster Award for his presentation entitled “Effect of spin-orbit torque on non-collinear antiferromagnet Mn3Sn”.
Congratulations!
Prof. Yamane is awarded the Young Scientist Award
Y. Yamane (Assistant Professor) is awarded the Young Scientist Award of the Physical Society of Japan for his research entitled “Theoretical study on electric response of noncollinear antiferromagnets”.
“1st Online RIEC International Workshop on Spintronics” will be held
It is our pleasure to announce the 1st Online RIEC International Workshop on Spintronics. The workshop consists of a live session to be held on November 18 and twelve on-demand invited talks. Once you register from the website of the workshop, you will receive a confirmation e-mail, which contains the information to access the on-demand contents and live session.
The panelists of the live session include the following researchers.
Pietro Gambardella (ETH Zürich)
Tomáš Jungwirth (Czech Academy of Sciences)
Mathias Kläui (Johannes Gutenberg-Universität Mainz)
Kyung-Jin Lee (KAIST)
Chi-Feng Pai (National Taiwan University)
Shunsuke Fukami (Tohoku University)
We hope for your active participation.
Paper published by Mr. Kobayashi et al. published in Applied Physics Letters
Our paper “Sigmoidal curves of stochastic magnetic tunnel junctions with perpendicular easy axis,” by K. Kobayashi, W. A. Borders, S. Kanai, K. Hayakawa, H. Ohno, and S. Fukami, was published in Applied Physics Letters.
Prof. Fukami’s talk was posted on YouTube
Prof. Fukami’s talk entitled “Electrical Manipulation of Non-Collinear Antiferromagnet” given at the On-line SPICE-SPIN+X Seminar held on July 21 was posted on YouTube.
Prof. Fukami’s talk is posted on YouTube
Prof. Fukami’s talk entitled “Nanosecond relaxation time in stochastic magnetic tunnel junction – theory and experiment” given at the online workshop held on June 19 organized by Petaspin/IEEE Magnetics Society – Italy chapter was posted on YouTube.
Paper published in Scientific Reports
Our paper “Unconventional Hall effect and its variation with Co-doping in van der Waals Fe3GeTe2” by R. Roy Chowdhury, S. DuttaGupta, C. Patra, O. A. Tretiakov, S. Sharma, S. Fukami, H. Ohno & R. P. Singh was published in Scientific Reports.
Paper published in Journal of the Physical Society of Japan
Our paper “Spin-transport Mediated Single-shot All-optical Magnetization Switching of Metallic Films” by S. Iihama, Q. Remy, J. Igarashi, G. Malinowski, M. Hehn, and S. Mangin was published in Journal of the Physical Society of Japan.
Paper by Dr. Dohi et al. published in Physical Review B
Our paper “Influence of domain wall anisotropy on the current-induced hysteresis loop shift for quantification of the Dzyaloshinskii-Moriya interaction” by T. Dohi, S. Fukami, and H. Ohno was published in Physical Review B.
Paper by Dr. J.-Y. Yoon et al. published in AIP Advances
Our paper “Correlation of anomalous Hall effect with structural parameters and magnetic ordering in Mn3+xSn1−x thin films” by J.-Y. Yoon, Y. Takeuchi, S. DuttaGupta, Y. Yamane, S. Kanai, J. Ieda, H. Ohno, and S. Fukami was published in AIP Advances.
Paper published in Nature Communications
Our paper “Electrically connected spin-torque oscillators array for 2.4 GHz WiFi band transmission and energy harvesting” by R. Sharma, R. Mishra, T. Ngo, Y.-X. Guo, S. Fukami, H. Sato, H. Ohno and H. Yang was published in Nature Communications.
Press release: “Wireless and Battery-free Spintronic Energy Harvester“
Paper by Prof. Takeuchi et al. published in Nature Materials
Our paper “Chiral-spin rotation of non-collinear antiferromagnet by spin–orbit torque” by Y. Takeuchi, Y. Yamane, J.-Y. Yoon, R. Itoh, B. Jinnai, S. Kanai, J. Ieda, S. Fukami and H. Ohno was published in Nature Materials.
Press release: “A New Spintronic Phenomenon: Chiral-spin Rotation Found in Non-collinear Antiferromagnet“
Paper by Prof. Fukami et al. published in the Early Access area of the IEEE Transactions on Magnetics
A roadmap article “Roadmap of spin-orbit torques” by Q. Shao, P. Li, L. Liu, H. Yang, S. Fukami et al. was published in the Early Access area of the IEEE Transactions on Magnetics.
2021/06/25 Formal version of this paper was published. Link to the paper.
Paper published in Physical Review Applied
Our paper “Double-Free-Layer Magnetic Tunnel Junctions for Probabilistic Bits” by K. Y. Camsari, M. M. Torunbalci, W. A. Borders, H. Ohno, and S. Fukami was published in Physical Review Applied. This paper is selected to Editor’s Suggestion.
In addition, a synopsis “Maximizing Volatility in Magnetic Tunnel Junctions” is published in Physics Magazine of the American Physical Society.
A review paper published in Nature Reviews Materials
A review paper “Quantum guidelines for solid-state spin defects” by G. Wolfowicz, F. J. Heremans, C. P. Anderson, S. Kanai, H. Seo, A. Gali, G. Galli, & D. D. Awschalom, was published in Nature Reviews Materials.
Press release: “A New Guideline for the Solid-state Spin Qubit“
“On line alumni reunion” held
We held an online alumni reunion. English version will be held soon.
“Online kick-off meeting” held
Mr. Uchimura, Mr. Kanno, and Mr. Chiba joined us as master course students.
Online kick-off meeting was held on April 2.
