Non-Collinear Spintronics

2022 Fiscal Year Annual Research Report

• Project/Area Number: 19H05622
• Research Institution: Tohoku University
• Principal Investigator: 深見 俊輔 東北大学, 電気通信研究所, 教授 (60704492)
• Co-Investigator(Kenkyū-buntansha): 家田 淳一 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 原子力科学研究所 先端基礎研究センター, 研究主幹 (20463797) ; DUTTAGUPTA SAMIK 東北大学, 先端スピントロニクス研究開発センター, 助教 (30807657) [Withdrawn] ; 金井 駿 東北大学, 電気通信研究所, 准教授 (40734546)
• Project Period (FY): 2019-06-26 – 2024-03-31
• Keywords: スピントロニクス / ノンコリニア磁気構造 / トポロジー / スピン・軌道相互作用 / 不揮発性メモリ / 脳型情報処理 / ワイル半金属

Outline of Annual Research Achievements

本研究課題では、電子デバイス、情報処理端末の高性能化、超低消費電力化に革新をもたらす技術へと発展することを期待し、スピントロニクスにおいてこれまで開拓されていないノンコリニア（非共線的）な磁気構造の持つ機能性とその利用方法を明らかにすることを通して、スピントロニクスの新たなパラダイム「ノンコリニアスピントロニクス」を開拓することを目指している。カイラルスピン構造の電流駆動や、仮想磁場の機能性素子応用などに取り組み、不揮発性メモリ、脳型情報処理の新基盤を構築する。
2022年度は2021年度までで構築したノンコリニア材料の作製技術と基本物性、動的特性に関する知見、理解を基礎に、主にノンコリニア磁気構造の機能性素子応用に向けた物性・材料研究を推進した。具体的な成果として、
(1) 磁気カー効果顕微鏡を用いたノンコリニア反強磁性Mn3Sn薄膜の磁区構造と磁場によるその変化の観察。(2) 層状反強磁性物質であるTaFe1.25Te3における異方性磁気抵抗の測定。(3) FeRh合金において生成されるスピン軌道トルクの反強磁性・強磁性相転移に伴う変化の観測。(4) 新たな学術パラダイムとして期待される「コヒーレント反強磁性スピントロニクス」に関するレビュー論文の発表。(5) ノンコリニア反強磁性Mn3Snナノドットの熱安定性の測定。
などを得た。

Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

ノンコリニア反強磁性Mn3Sn薄膜の磁区構造や熱安定性など、ノンコリニア反強磁性体のデバイス利用を進める上で不可欠な性質に関して、深く踏み込んだ研究を行うことができ、当初計画通りに進捗しているものと判断できる。

Strategy for Future Research Activity

本課題の研究期間は2019年度から2023年度であり、2022年度の予算の一部を2023年度に繰り越して使用したことから、本欄は研究期間終了後である2024年4月に記載している。このことから、以下では、2023年度に実際に行った研究内容の概要を記載するものとする。
2023年度はノンコリニア反強磁性体のカイラルスピン構造を対称性の観点で記述する磁気八極子のスピン軌道トルクへの応答や、ノンコリニア反強磁性体と非磁性重金属の界面で形成される特異なスピン構造とその性質について詳しく調べ、従来のコリニアスピントロニクスとの違いや機能性などについて明らかにした。

Research Products

• [Int'l Joint Research] Johannes Gutenberg Universitat Mainz(ドイツ)
  • Country Name: GERMANY
  • Counterpart Institution: Johannes Gutenberg Universitat Mainz
• [Int'l Joint Research] University of Lorraine(フランス)
  • Country Name: FRANCE
  • Counterpart Institution: University of Lorraine
• [Int'l Joint Research] UC Santa Barbara/Purdue University/Massachusetts Institute of Technology(米国)
  • Country Name: U.S.A.
  • Counterpart Institution: UC Santa Barbara/Purdue University/Massachusetts Institute of Technology
• [Int'l Joint Research] IISER Bhopal(インド)
  • Country Name: INDIA
  • Counterpart Institution: IISER Bhopal
• [Int'l Joint Research] University of Gothenburg(スウェーデン)
  • Country Name: SWEDEN
  • Counterpart Institution: University of Gothenburg
• [Journal Article] Coherent antiferromagnetic spintronics (2023)
  • Author(s): Han Jiahao、Cheng Ran、Liu Luqiao、Ohno Hideo、Fukami Shunsuke
  • Journal Title: Nature Materials Volume: 22 Pages: 684～695
  • DOI: 10.1038/s41563-023-01492-6
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Thermal stability of non-collinear antiferromagnetic Mn3Sn nanodot (2023)
  • Author(s): Sato Yuma、Takeuchi Yutaro、Yamane Yuta、Yoon Ju-Young、Kanai Shun、Ieda Jun’ichi、Ohno Hideo、Fukami Shunsuke
  • Journal Title: Applied Physics Letters Volume: 122 Pages: 122404(1)-(6)
  • DOI: 10.1063/5.0135709
  • Peer Reviewed
• [Journal Article] Nonlinear conductance in nanoscale CoFeB/MgO magnetic tunnel junctions with perpendicular easy axis (2023)
  • Author(s): Shinozaki Motoya、Igarashi Junta、Iwakiri Shuichi、Kitada Takahito、Hayakawa Keisuke、Jinnai Butsurin、Otsuka Tomohiro、Fukami Shunsuke、Kobayashi Kensuke、Ohno Hideo
  • Journal Title: Physical Review B Volume: 107 Pages: 094436(1)-(8)
  • DOI: 10.1103/PhysRevB.107.094436
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Theory of Emergent Inductance with Spin-Orbit Coupling Effects (2022)
  • Author(s): Yamane Yuta、Fukami Shunsuke、Ieda Jun’ichi
  • Journal Title: Physical Review Letters Volume: 128 Pages: 147201(1)-(6)
  • DOI: 10.1103/PhysRevLett.128.147201
  • Peer Reviewed
• [Journal Article] Observation of domain structure in non-collinear antiferromagnetic Mn3Sn thin films by magneto-optical Kerr effect (2022)
  • Author(s): Uchimura Tomohiro、Yoon Ju-Young、Sato Yuma、Takeuchi Yutaro、Kanai Shun、Takechi Ryota、Kishi Keisuke、Yamane Yuta、DuttaGupta Samik、Ieda Jun'ichi、Ohno Hideo、Fukami Shunsuke
  • Journal Title: Applied Physics Letters Volume: 120 Pages: 172405(1)-(5)
  • DOI: 10.1063/5.0089355
  • Peer Reviewed
• [Journal Article] Local bifurcation with spin-transfer torque in superparamagnetic tunnel junctions (2022)
  • Author(s): Funatsu Takuya、Kanai Shun、Ieda Jun’ichi、Fukami Shunsuke、Ohno Hideo
  • Journal Title: Nature Communications Volume: 13 Pages: 4079(1)-(8)
  • DOI: 10.1038/s41467-022-31788-1
  • Peer Reviewed / Open Access
• [Journal Article] Anisotropic magnetotransport in the layered antiferromagnet TaFe1.25Te3 (2022)
  • Author(s): Roy Chowdhury Rajeswari、DuttaGupta Samik、Patra Chandan、Kataria Anshu、Fukami Shunsuke、Singh Ravi Prakash
  • Journal Title: Physical Review Materials Volume: 6 Pages: 084408(1)-(8)
  • DOI: 10.1103/PhysRevMaterials.6.084408
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Large Exotic Spin Torques in Antiferromagnetic Iron Rhodium (2022)
  • Author(s): Gibbons Jonathan、Dohi Takaaki、Amin Vivek P.、Xue Fei、Ren Haowen、Xu Jun-Wen、Arava Hanu、Shim Soho、Saglam Hilal、Liu Yuzi、Pearson John E.、Mason Nadya、Petford-Long Amanda K.、Haney Paul M.、Stiles Mark D.、Fullerton Eric E.、Kent Andrew D.、Fukami Shunsuke、Hoffmann Axel
  • Journal Title: Physical Review Applied Volume: 18 Pages: 024075(1)-(12)
  • DOI: 10.1103/PhysRevApplied.18.024075
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] External-Field-Robust Stochastic Magnetic Tunnel Junctions Using a Free Layer with Synthetic Antiferromagnetic Coupling (2022)
  • Author(s): Kobayashi Keito、Hayakawa Keisuke、Igarashi Junta、Borders William A.、Kanai Shun、Ohno Hideo、Fukami Shunsuke
  • Journal Title: Physical Review Applied Volume: 18 Pages: 054085(1)-(9)
  • DOI: 10.1103/PhysRevApplied.18.054085
  • Peer Reviewed
• [Presentation] CMOS + stochastic MTJ: Heterogeneous probabilistic computers for optimization and sampling (2023)
  • Author(s): N. A. Aadit, A. Grimaldi, K. Selcuk, K. Kobayashi, Q. Cao, S. Chowdhury, G. Finocchio, S. Kanai, H. Ohno, S. Fukami, and K. Y. Camsari
  • Organizer: The 11th RIEC International Symposium on Brain Functions and Brain Computer (BFBC2023)
  • Int'l Joint Research / Invited
• [Presentation] Determining switching exponents with stochastic magnetic tunnel junctions (2023)
  • Author(s): S. Kanai, T. Funatsu, J. Ieda, S. Fukami, and H. Ohno
  • Organizer: APS March Meeting 2023
  • Int'l Joint Research
• [Presentation] CMOS+ stochastic MTJ: Heterogeneous p-computers for energy-based machine learning (2023)
  • Author(s): K. Kobayashi, Q. Cao, N. Singh, K. Selcuk, T. Hu, S. Niazi, N. Aadit, S. Kanai, H. Ohno, S. Fukami, and K. Camsari
  • Organizer: APS March Meeting 2023
  • Int'l Joint Research
• [Presentation] Probabilistic Spintronics for Beyond CMOS (2023)
  • Author(s): S. Fukami
  • Organizer: SPEAR Workshop Spintronics for beyond CMOS
  • Int'l Joint Research / Invited
• [Presentation] Heterogeneous probabilistic computers for optimization and sampling (2023)
  • Author(s): N. A. Aadit, A. Grimaldi, K. Selcuk, K. Kobayashi, Q. Cao, S. Chowdhury, G. Finocchio, S. Kanai, H. Ohno, S. Fukami, and K. Y. Camsari
  • Organizer: 2nd Online RIEC International Workshop on Spintronics
  • Int'l Joint Research / Invited
• [Presentation] Probabilistic Spintronics - Computing and Device Physics (2023)
  • Author(s): S. Fukami
  • Organizer: SPICE-Spin+X Seminars
  • Int'l Joint Research / Invited
• [Presentation] Device physics of stochastic magnetic tunnel junction (2023)
  • Author(s): S. Kanai
  • Organizer: 2nd Online RIEC International Workshop on Spintronics
  • Int'l Joint Research / Invited
• [Presentation] スピントロニクス確率ビットを用いた疑似量子計算 (2023)
  • Author(s): 深見俊輔
  • Organizer: 量子アニーリング及び関連技術研究会
  • Invited
• [Presentation] Temperature dependence of relaxation time of superparamagnetic tunnel junctions (2023)
  • Author(s): H. Kaneko, R. Ota, K. Kobayashi, S. Kanai, H. Ohno, and S. Fukami,
  • Organizer: 第70回応用物理学会秋季学術講演会
• [Presentation] Sputter-deposited non-collinear antiferromagnetic Mn3Sn thin films with controlled crystal orientation (2023)
  • Author(s): J.-Y. Yoon, Y. Takeuchi, R. Itoh, S. Kanai, S. Fukami, H. Ohno
  • Organizer: 第70回応用物理学会秋季学術講演会
  • Invited
• [Presentation] Diameter and thickness dependence of magnetization reversal in shape-anisotropy magnetic tunnel junctions (2023)
  • Author(s): J. Igarashi, B. Jinnai, K. Watanabe, R. Evans, S. Fukami, and H. Ohno
  • Organizer: 第70回応用物理学会秋季学術講演会
• [Presentation] Machine Learning Based on Stochastic Magnetic Tunnel Junctions (2022)
  • Author(s): J. Kaiser, W. A. Borders, K. Y. Camsari, S. Fukami, H. Ohno, and S. Datta
  • Organizer: Physical Review Journal Club
  • Int'l Joint Research / Invited
• [Presentation] Probabilistic spintronics nanodevices for unconventional computing (2022)
  • Author(s): S. Fukami
  • Organizer: Workshop on Energy Efficient Functional Nanodevices
  • Int'l Joint Research / Invited
• [Presentation] Stochastic magnetic tunnel junction: from device physics to computing (2022)
  • Author(s): S. Fukami
  • Organizer: W2S Seminar
  • Int'l Joint Research / Invited
• [Presentation] MTJ device technologies: for single-digit nm, for sub-ns, and for p-bit (2022)
  • Author(s): S. Fukami
  • Organizer: 2022 Spintronics Workshop on LSI
  • Int'l Joint Research / Invited
• [Presentation] Theory of Spin-Orbit Emergent Inductance (2022)
  • Author(s): Y. Yamane, S. Fukami, J. Ieda
  • Organizer: 24th International Colloquium on Magnetic Films and Surfaces (ICMFS-2022)
  • Int'l Joint Research
• [Presentation] Pitch scaling prospect for highly dense ultra-small magnetic tunnel junctions : tolerance against magnetostatic interference from neighboring bits (2022)
  • Author(s): T. Shinoda, J. Igarashi, B. Jinnai, S. Fukami, H. Ohno
  • Organizer: 24th International Colloquium on Magnetic Films and Surfaces (ICMFS-2022)
  • Int'l Joint Research
• [Presentation] Magneto-optical Kerr effect study for non-collinear antiferromagnetic Mn3Sn thin films (2022)
  • Author(s): T. Uchimura, J. Yoon, Y. Sato, Y. Takeuchi, S. Kanai, R. Takechi, K. Kishi, Y. Yamane, S. DuttaGupta, J. Ieda, H. Ohno, S. Fukami
  • Organizer: 24th International Colloquium on Magnetic Films and Surfaces (ICMFS-2022)
  • Int'l Joint Research
• [Presentation] Memristor controlled mutual synchronization of spin Hall nano-oscillators (2022)
  • Author(s): J. Akerman, M. Zahedinejad, A. A. Awad, H. Fulara, S. Muralidhar, A. Houshang, R. Khymyn, S. Fukami, S. Kanai, H. Ohno
  • Organizer: 24th International Colloquium on Magnetic Films and Surfaces (ICMFS-2022)
  • Int'l Joint Research
• [Presentation] Magnetic Field Immunity of Stochastic Magnetic Tunnel Junctions with Synthetic Antiferromagnetic Free Layer (2022)
  • Author(s): K. Kobayashi, K. Hayakawa, J. Igarashi, W. A. Borders, S. Kanai, H. Ohno, S. Fukami
  • Organizer: 24th International Colloquium on Magnetic Films and Surfaces (ICMFS-2022)
  • Int'l Joint Research
• [Presentation] Stochastic magnetic tunnel junction for probabilistic bit and circuit (2022)
  • Author(s): S. Fukami
  • Organizer: 20th International Symposium on the Physics of Semiconductors and Applications (ISPSA 2022)
  • Int'l Joint Research / Invited
• [Presentation] Thermal Agitation of Magnetization Dynamics Induced by Electric-field (2022)
  • Author(s): S. Kanai, Y. Nakatani, F. Matsukura, and H. Ohno
  • Organizer: 2022 Joint European Magnetic Symposia (JEMS)
  • Int'l Joint Research
• [Presentation] Material/Device Technologies and Demonstration of SOT-MRAM on 300-mm process (2022)
  • Author(s): S. Fukami
  • Organizer: Workshop on Spin Orbit Torque (SOT) Materials and Devices
  • Int'l Joint Research / Invited
• [Presentation] Nonvolatile, Neuromorphic and Probabilistic Spintronics (2022)
  • Author(s): S. Fukami and H. Ohno
  • Organizer: SPIE Optics + Photonics 2022
  • Int'l Joint Research / Invited
• [Presentation] X-nm CoFeB/MgO Magnetic Tunnel Junction for High-Speed to High-Retention Applications (2022)
  • Author(s): B. Jinnai, J. Igarashi, K. Watanabe, T. Shinoda, T. Funatsu, H. Sato, S. Fukami, and H. Ohno
  • Organizer: The 33rd Magnetic Recording Conference (TMRC)
  • Int'l Joint Research / Invited
• [Presentation] An alternative route for tuning unconventional Hall effect in layered ferromagnet Fe3(As,Ge)Te2 (2022)
  • Author(s): R. Roy Chowdhury, C. Patra, S. DuttaGupta, S. Fukami and R. P. Singh
  • Organizer: 2022 IEEE Around-the-Clock-Around-the-Globe Conference
  • Int'l Joint Research
• [Presentation] Probabilistic spintronics - from device physics to computing (2022)
  • Author(s): S. Fukami
  • Organizer: Trends in MAGnetism 2022
  • Int'l Joint Research / Invited
• [Presentation] Spintronics technology for quasi-quantum computing (2022)
  • Author(s): S. Fukami
  • Organizer: SUMKEN Seminar
  • Int'l Joint Research / Invited
• [Presentation] Domain imaging of an antiferromagnetic Weyl semimetal Mn3Sn thin films by magneto-optical Kerr effect (2022)
  • Author(s): T. Uchimura, J.-Y. Yoon, Y. Sato, Y. Takeuchi, S. Kanai, R. Takechi, K. Kishi, Y. Yaman, S. DuttaGupta, J. Ieda, H. Ohno, and S. Fukami
  • Organizer: The 6th Symposium for The Core Research Clusters for Materials Science and Spintronics
  • Int'l Joint Research
• [Presentation] Insensitivity to the bias voltage in double-free-layer stochastic magnetic tunnel junction (2022)
  • Author(s): R. Ota, K. Kobayashi, K. Hayakawa, S. Kanai, K. Y. Camsari, H. Ohno, and S. Fukami
  • Organizer: The 6th Symposium for The Core Research Clusters for Materials Science and Spintronics
  • Int'l Joint Research
• [Presentation] Thickness dependence of anomalous Hall effect in non-collinear antiferromagnetic D019-Mn3Sn epitaxial thin films (2022)
  • Author(s): S. Wakabayashi, Y. Takeuchi, J. -Y. Yoon, Y. Sato, K. Kishi, T. Uchimura, Y. Yamane, S. Kanai, J. Ieda , H. Ohno, and S. Fukami
  • Organizer: The 6th Symposium for The Core Research Clusters for Materials Science and Spintronics
  • Int'l Joint Research
• [Presentation] Size dependence of thermal stability factor in non-collinear antiferromagnetic Mn3Sn nanodot (2022)
  • Author(s): Y. Sato, Y. Takeuchi, Y. Yamane, J.-Y. Yoon, S. Kanai, J. Ieda, H. Ohno, and S. Fukami
  • Organizer: The 6th Symposium for The Core Research Clusters for Materials Science and Spintronics
  • Int'l Joint Research
• [Presentation] Spintronics devices for ultralow-power semiconductors and unconventional computers (2022)
  • Author(s): S. Fukami
  • Organizer: IEEE Region 10 Conference
  • Int'l Joint Research / Invited
• [Presentation] Memristive Spin-Orbit Torque Switching in Nanocomposite CoPtCrB (2022)
  • Author(s): K. V. De Zoysa, S. DuttaGupta, B. Jinnai, H. Ohno and S. Fukami
  • Organizer: The 67th Annual Conference on Magnetism and Magnetic Materials
  • Int'l Joint Research
• [Presentation] MTJ device physics and technologies toward deeply scaled STT-MRAM and probabilistic-computing applications (2022)
  • Author(s): S. Fukami
  • Organizer: The 67th Annual Conference on Magnetism and Magnetic Materials
  • Int'l Joint Research / Invited
• [Presentation] Thermal stability of non-collinear antiferromagnetic Mn3Sn nanodot (2022)
  • Author(s): Y. Sato, Y. Takeuchi, Y. Yamane, S. Kanai, J. Yoon, J. Ieda, H. Ohno and S. Fukami
  • Organizer: The 67th Annual Conference on Magnetism and Magnetic Materials
  • Int'l Joint Research
• [Presentation] Unconventional Emergent Hall Effect Phenomena and its Modification In a van der Waals Ferromagnet Fe3GeTe2 (2022)
  • Author(s): R. Roy Chowdhury, C. Patra, S. DuttaGupta, S. Fukami, R. P. Singh
  • Organizer: The 67th Annual Conference on Magnetism and Magnetic Materials
  • Int'l Joint Research
• [Presentation] Spin-orbit torques in RuO2/Co-Fe-B bilayer (2022)
  • Author(s): T. Nguyen, S. DuttaGupta, Y. Saito, S. Fukami, D. Vu, H. Naganuma, S. Ikeda, T. Endoh and Y. Endo
  • Organizer: The 67th Annual Conference on Magnetism and Magnetic Materials
  • Int'l Joint Research
• [Presentation] Chiral-spin rotation of antiferromagnetic Weyl semimetal Mn3Sn by spin-orbit torque (2022)
  • Author(s): Y. Takeuchi, Y. Yamane, J.-Y. Yoon, R. Itoh, R. Takechi, K. Kishi, S. DuttaGupta, S. Kanai, B. Jinnai, J. Ieda, H. Ohno, and S. Fukami
  • Organizer: Advanced Technology Institute (ATI), 2022 2nd spintronics workshop
  • Int'l Joint Research / Invited
• [Presentation] Experimental evaluation of simulated quantum annealing with MTJ-augmented p-bits (2022)
  • Author(s): 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
  • Organizer: 68th Annual IEEE International Electron Devices Meeting (IEDM2022)
  • Int'l Joint Research
• [Presentation] Morphology and properties of self-organized 3D gyroid nanostructures (2022)
  • Author(s): J. Llandro
  • Organizer: IMEC academy symposium
  • Int'l Joint Research / Invited
• [Presentation] Dynamics of a stochastic nanomagnet for probabilistic computing (2022)
  • Author(s): S. Fukami
  • Organizer: SPIN CAVITRONICS IV
  • Int'l Joint Research / Invited
• [Presentation] Stochasticity and Bifurcation in Spintronics Device for Probabilistic Computing (2022)
  • Author(s): S. Kanai, T. Funatsu, J. Ieda, S. Fukami, and H. Ohno
  • Organizer: 2022 International Symposium on Nonlinear Theory and Its Applications (NOLTA2022)
  • Int'l Joint Research / Invited
• [Presentation] スピンオッシレータを用いたWi-Fi周波数の電波からの発電 (2022)
  • Author(s): 深見俊輔
  • Organizer: 日本磁気学会第237回研究会／第84回スピントロニクス専門研究会
  • Invited
• [Presentation] 低炭素社会実現に向けたスピントロニクスx半導体素子研究 (2022)
  • Author(s): 深見俊輔
  • Organizer: 東北大学 グリーン・ゴールズ・パートナー『グリーン・シーズ研究会』
  • Invited
• [Presentation] スピン軌道トルクによるノンコリニア反強磁性体のカイラルスピン構造の回転 (2022)
  • Author(s): 竹内 祐太朗, 山根 結太, ユンジュヨン, 伊藤 隆一, 陣内 佛霖, 金井 駿, 家田 淳一, 大野 英男, 深見 俊輔
  • Organizer: 第46回日本磁気学会学術講演会
• [Presentation] 積層フェリ磁性薄膜における拡張Stoner-Wohlfarth模型 (2022)
  • Author(s): 山根 結太, 増田 啓人, 関 剛斎, 家田 淳一
  • Organizer: 日本物理学会 2022年秋季大会
• [Presentation] スピントロニクスによる新概念コンピューティング (2022)
  • Author(s): 深見俊輔
  • Organizer: 第83回応用物理学会秋季学術講演会
  • Invited
• [Presentation] Stochastic magnetic tunnel junctions with double free layers (2022)
  • Author(s): R. Ota, K. Kobayashi, K. Hayakawa, S. Kanai, K. Camsari, H. Ohno and S. Fukami
  • Organizer: 第83回応用物理学会秋季学術講演会
• [Presentation] Spin-orbit Torque Switching in Nanocomposite CoPtCrB (2022)
  • Author(s): K. V. De Zoysa, S. DuttaGupta, B. Jinnai, H. Ohno and S. Fukami
  • Organizer: 第83回応用物理学会秋季学術講演会
• [Presentation] Prospect of pitch scaling for highly dense STT-MRAM with ultra-small magnetic tunnel junctions (2022)
  • Author(s): 篠田 峻伸, 五十嵐 純太, 陣内 佛霖, 深見 俊輔, 大野 英男
  • Organizer: 第83回応用物理学会秋季学術講演会
• [Presentation] Enhancement of spin-orbit torque in W/CoFeB/MgO by oxidation of W (2022)
  • Author(s): 千葉 峻也, 竹内 祐太朗, K. V. De Zoysa, 大野 英男, 深見 俊輔
  • Organizer: 第83回応用物理学会秋季学術講演会
• [Presentation] Dot size dependence of thermal stability in non-collinear antiferromagnet Mn3Sn (2022)
  • Author(s): Y. Sato, Y. Takeuchi, Y. Yamane, J. Yoon, S. Kanai, J. Ieda, H. Ohno and S. Fukami
  • Organizer: 第83回応用物理学会秋季学術講演会
• [Presentation] ノンコリニア反強磁性Mn3Snナノドットの熱安定性のサイズ依存性 (2022)
  • Author(s): 佐藤 佑磨、竹内 祐太朗、山根 結太、ユンジュヨン、金井 駿、家田 淳一、大野 英男、深見 俊輔
  • Organizer: 第41回電子材料シンポジウム
• [Presentation] 極微細磁気トンネル接合を用いたSTT-MRAMの高集積化に関する予測 (2022)
  • Author(s): 篠田 峻伸、五十嵐 純太、陣内 佛霖、深見 俊輔、大野 英男
  • Organizer: 第41回電子材料シンポジウム
• [Presentation] ノンコリニア反強磁性Mn3Snエピタキシャル薄膜の異常ホール効果の膜厚依存性 (2022)
  • Author(s): 若林 駿、竹内 祐太朗、ユンジュヨン、佐藤 佑磨、岸 桂輔、内村 友宏、山根 結太、金井 駿、家田 淳一、大野 英男、深見 俊輔
  • Organizer: 第41回電子材料シンポジウム
• [Presentation] ダブルフリー層超常磁性磁気トンネル接合素子の電圧依存性 (2022)
  • Author(s): 大田 陸斗、小林 奎斗、早川 佳祐、金井 駿、K. Y. Camsari、大野 英男、深見 俊輔
  • Organizer: 第41回電子材料シンポジウム
• [Presentation] スピントロニクス確率論的コンピューティング (2022)
  • Author(s): 深見俊輔
  • Organizer: 第10回CURIEセミナー（東京大学協創拠点CURIE）
  • Invited
• [Presentation] ワイル反強磁性体Mn3Snエピタキシャル薄膜におけるスピン輸送・光学特性 (2022)
  • Author(s): 内村 友宏、 J. -Y. Yoon、竹内 祐太朗、金井 駿、大野 英男、深見 俊輔
  • Organizer: 2022年度 多元系化合物・太陽電池研究会 年末講演会