Innovative metal/semiconductor-hybrid spintronic devices for nano-scale memory

• Project/Area Number: 21H05000
• Research Category: Grant-in-Aid for Scientific Research (S)
• Allocation Type: Single-year Grants
• Review Section: Broad Section C
• Research Institution: Tohoku University
• Principal Investigator: 水上 成美 東北大学, 材料科学高等研究所, 教授 (00339269)
• Co-Investigator(Kenkyū-buntansha): 浜屋 宏平 大阪大学, 大学院基礎工学研究科, 教授 (90401281)
• Project Period (FY): 2021-07-05 – 2026-03-31
• Project Status: Granted (Fiscal Year 2025)
• Budget Amount: ¥184,860,000 (Direct Cost: ¥142,200,000、Indirect Cost: ¥42,660,000); Fiscal Year 2025: ¥27,560,000 (Direct Cost: ¥21,200,000、Indirect Cost: ¥6,360,000); Fiscal Year 2024: ¥27,560,000 (Direct Cost: ¥21,200,000、Indirect Cost: ¥6,360,000); Fiscal Year 2023: ¥27,560,000 (Direct Cost: ¥21,200,000、Indirect Cost: ¥6,360,000); Fiscal Year 2022: ¥93,600,000 (Direct Cost: ¥72,000,000、Indirect Cost: ¥21,600,000); Fiscal Year 2021: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
• Keywords: スピントロニクス / 磁性体 / 半導体 / 垂直磁化 / 磁気抵抗素子

Outline of Research at the Start

磁性体と絶縁体からなる磁気抵抗素子は不揮発性のメモリへと応用され、その製品化が進みつつある。本研究では、そのようなメモリの更なる高速化・大容量化を可能とする革新的な材料・素子の研究を行う。具体的には、次世代半導体と研究代表者独自のマンガン系磁性材料等を高度に融合させた縦型の磁気抵抗素子を研究する。それら異種材料の界面における化学や、安定な界面の形成手法を明らかにすることで、室温で大きな磁気抵抗効果を発現する素子の実現を目指す。

Outline of Annual Research Achievements

代表者は、前年度にCoMn(001)を界面層に用いた正方晶MnGa(001) /MgO(001)垂直磁化素子で100%を超えるトンネル磁気抵抗比を得た。しかし、耐熱性に課題があり250℃程度の熱処理温度で素子が劣化し更なる高トンネル磁気抵抗比を得ることが難しかった。そこで、より耐熱性に優れるCoMnFe(001)界面層を用いた素子を研究し、300℃を超える耐熱性を達成し、室温で100%を超えるトンネル磁気抵抗効果を再現性よく得ることにも成功した。また、前年度に確立した窒化物ワイドギャップ半導体スペーサの形成手法を用いた素子研究を進め、正方晶MnGa(001)と準安定立方晶AlN (001)を組み合わせた垂直磁化素子を作製し、磁気抵抗効果の観測まで達成した。これらの結果は関連学会で報告し論文を準備している。並行して、前年度から継続して、六方晶Mn合金・化合物薄膜の研究を進めた。分担者は、前年度からPドープn形半導体Ge(111)中間層を有する縦型半導体素子の研究を継続した。磁性電極としてCo2FeSi(111)よりもCo2MnSi(111)の結晶成長が良好であり、平滑なヘテロ界面の形成が期待できることを明らかとした。さらに代表者と分担者は昨年度から継続して正方晶MnGa(001)/Ge(001)垂直磁化素子を研究した。東北大で形成された正方晶MnGa(001)薄膜表面の清浄化の過程で表面平坦性が劣化する現象が頻発した。その原因の究明を進め対策を明らかにすることで、素子を再現性よく作製する技術が確立できた。この取り組みにより次年度の正方晶MnGa(001)/Ge(001)垂直磁化素子の研究を加速できる。

Current Status of Research Progress

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

Reason

代表者は、室温でさらなる高い磁気抵抗効果を示すMn合金・化合物素子の開発を順調に進め、再現性良く100%以上の磁気抵抗効果を得ることができるようになった。また、上述のように窒化物半導体やIV族半導体を組み合わせた素子開発も順調に進んでいる。これらの結果の一部は学会等で報告しており、おおむね順調に進展している、とした。

Strategy for Future Research Activity

これまでの知見や成果をもとに、正方晶MnGa(001) と他の窒化物半導体立方晶(001)を用いた垂直磁化素子の研究を進め、高磁気抵抗効果と低素子抵抗を両立する素子の開発に取り組む。継続している六方晶系Mn合金・化合物薄膜の研究を加速し、窒化物半導体(0001)を中間層とする磁気抵抗素子の研究を進める。分担者は、昨年度までの知見や成果をもとに、良質のヘテロ界面を有するGe(111)素子を作製し磁気抵抗効果のエンハンスを狙う。代表者と分担者が緊密に連携して研究を進めている正方晶MnGa(001)/Ge(001)垂直磁化素子においては、さらに連携を深めることで、室温で高い磁気抵抗効果を示す素子の開発を目指す。

Assessment Rating

Interim Assessment Comments (Rating)

A: In light of the aim of introducing the research area into the research categories, the expected progress has been made in research.

Research Products

• [Int'l Joint Research] Helmholtz-Zentrum Dresden-Rossendorf(ドイツ)
• [Journal Article] Topologically-Influenced Terahertz Emission in Co2MnGa with Anomalous Hall Effect (2024)
  • Author(s): R. Mandal, R. Momma, K. Ishibashi, S. Iihama, K. Suzuki, S. Mizukami
  • Journal Title: NPG Asia Materials Volume: 未定
  • Peer Reviewed / Open Access
• [Journal Article] Al-Ge-paste-induced liquid phase epitaxy of Si-rich SiGe(111) for epitaxial Co-based Heusleralloys (2024)
  • Author(s): Michihiro Yamada, Shota Suzuki, Ai I. Osakae, Kazuaki Sumi, Takahiro Inoue, Azusa N. Hattori, Shinya Yamada, Kentarou Sawano, Marwan Dhamrin, Kohei Hamaya
  • Journal Title: Materials Science in Semiconductor Processing Volume: 174 Pages: 108232-108232
  • DOI: 10.1016/j.mssp.2024.108232
  • Peer Reviewed / Open Access
• [Journal Article] Growth of all-epitaxial Co2MnSi/Ge/Co2MnSi vertical spin-valve structures on Si (2024)
  • Author(s): Yamada Atsuya、Yamada Michihiro、Kusumoto Shuhei、do Nascimento Julio A.、Murrill Connor、Yamada Shinya、Sawano Kentarou、Lazarov Vlado K.、Hamaya Kohei
  • Journal Title: Materials Science in Semiconductor Processing Volume: 173 Pages: 108140-108140
  • DOI: 10.1016/j.mssp.2024.108140
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Effect of Sn doping on low-temperature growth of Ge epilayers on half-metallic Co2FeSi (2024)
  • Author(s): Yamada Michihiro、Kusumoto Shuhei、Yamada Atsuya、Sawano Kentarou、Hamaya Kohei
  • Journal Title: Materials Science in Semiconductor Processing Volume: 171 Pages: 107987-107987
  • DOI: 10.1016/j.mssp.2023.107987
  • Peer Reviewed / Open Access
• [Journal Article] Universal scaling between wave speed and size enables nanoscale high-performance reservoir computing based on propagating spin-waves (2024)
  • Author(s): Iihama Satoshi、Koike Yuya、Mizukami Shigemi、Yoshinaga Natsuhiko
  • Journal Title: npj Spintronics Volume: 2 Issue: 1
  • DOI: 10.1038/s44306-024-00008-5
  • Peer Reviewed / Open Access
• [Journal Article] Converse magnetoelectric coupling coefficient greater than 10-6 s/m in perpendicularly magnetized Co/Pd multilayers on Pb(Mg1/3Nb2/3)O3-PbTiO3 (2023)
  • Author(s): T. Usami, Y. Sanada, Y. Shiratsuchi, S. Yamada, T. Kanashima, R. Nakatani, and K. Hamaya
  • Journal Title: Journal of Magnetism and Magnetic Materials Volume: 570 Pages: 170532-170532
  • DOI: 10.1016/j.jmmm.2023.170532
  • Peer Reviewed
• [Journal Article] Tunnel magnetoresistance exceeding 100% in magnetic tunnel junctions using Mn-based tetragonal alloy electrodes with perpendicular magnetic anisotropy (2023)
  • Author(s): Suzuki Kazuya Z.、Mizukami Shigemi
  • Journal Title: AIP Advances Volume: 13 Issue: 3
  • DOI: 10.1063/5.0141706
  • Peer Reviewed / Open Access
• [Journal Article] Different spin relaxation properties observed in linearly and circularly polarized laser induced terahertz emission from a Bi/Co bilayer (2023)
  • Author(s): Ishibashi Kazuaki、Iihama Satoshi、Mizukami Shigemi
  • Journal Title: Physical Review B Volume: 107 Issue: 14
  • DOI: 10.1103/physrevb.107.144413
  • Peer Reviewed
• [Journal Article] Tracing magnetic atom diffusion with annealing at the interface between CoMn alloy and MnGa layer by X-ray magnetic circular dichroism (2022)
  • Author(s): Okabayashi Jun、Suzuki Kazuya Z.、Mizukami Shigemi
  • Journal Title: Journal of Magnetism and Magnetic Materials Volume: 564 Pages: 170163-170163
  • DOI: 10.1016/j.jmmm.2022.170163
  • Peer Reviewed
• [Journal Article] Effect of Strain on Room-Temperature Spin Transport in Si0.1Ge0.9 (2022)
  • Author(s): Naito T.、Yamada M.、Wagatsuma Y.、Sawano K.、Hamaya K.
  • Journal Title: Physical Review Applied Volume: 18 Issue: 2 Pages: 024005-024005
  • DOI: 10.1103/physrevapplied.18.024005
  • Peer Reviewed
• [Journal Article] Semiconductor spintronics with Co2-Heusler compounds (2022)
  • Author(s): Hamaya Kohei、Yamada Michihiro
  • Journal Title: MRS Bulletin Volume: 47 Issue: 6 Pages: 584-592
  • DOI: 10.1557/s43577-022-00351-0
  • Peer Reviewed / Open Access
• [Journal Article] Significant effect of interfacial spin moments in ferromagnet-semiconductor heterojunctions on spin transport in a semiconductor (2022)
  • Author(s): Naito T.、Nishimura R.、Yamada M.、Masago A.、Shiratsuchi Y.、Wagatsuma Y.、Sawano K.、Nakatani R.、Oguchi T.、Hamaya K.
  • Journal Title: Physical Review B Volume: 105 Issue: 19 Pages: 195308-195308
  • DOI: 10.1103/physrevb.105.195308
  • Peer Reviewed
• [Journal Article] Temperature dependence of two-terminal local magnetoresistance in Co-based Heusler alloy/Ge lateral spin-valve devices (2022)
  • Author(s): Yamada Michihiro、Naito Takahiro、Sumi Kazuaki、Sawano Kentarou、Hamaya Kohei
  • Journal Title: IEEE Transactions on Magnetics Volume: - Issue: 8 Pages: 1-4
  • DOI: 10.1109/tmag.2022.3145393
  • Peer Reviewed
• [Journal Article] Experimental extraction of donor-driven spin relaxation in n-type nondegenerate germanium (2021)
  • Author(s): M. Yamada, T. Ueno, T. Naito, K. Sawano, and K. Hamaya
  • Journal Title: Physical Review B Volume: 104 Issue: 11 Pages: 115301-106
  • DOI: 10.1103/physrevb.104.115301
  • Peer Reviewed
• [Journal Article] Magnetoresistance ratio of more than 1% at room temperature in germanium vertical spin-valve devices with Co2FeSi (2021)
  • Author(s): Yamada A.、Yamada M.、Honda M.、Yamada S.、Sawano K.、Hamaya K.
  • Journal Title: Applied Physics Letters Volume: 119 Issue: 19 Pages: 192404-192404
  • DOI: 10.1063/5.0061504
  • Peer Reviewed
• [Presentation] Tunnel magnetoresistance in MnGa-based magnetic tunnel junctions with metastable bcc CoMnFe interlayer (2024)
  • Author(s): Deepak Kumar, Naoki Kamata, Shigemi Mizukami
  • Organizer: 第71回応用物理学会春季学術講演会
• [Presentation] Time-resolved magneto-optical Kerr effect for antiferromagnetic Mn3Sn films with perpendicular magnetic anisotropy (2024)
  • Author(s): Zaizhou Jin, Tomohiro Uchimura, Satoshi Iihama, Yuta Yamane, Junta Igarashi, Shunsuke Fukami, Shigemi Mizukami
  • Organizer: 第71回応用物理学会春季学術講演会
• [Presentation] 計算・データ科学を用いたトンネル磁気抵抗素子材料の開発 (2024)
  • Author(s): 水上成美、廣畑貴文、白井正文
  • Organizer: 第71回応用物理学会春季学術講演会
  • Invited
• [Presentation] Ultrafast collapse of octupole order in antiferromagnetic semimetal Mn3Sn (2024)
  • Author(s): Zaizhou Jin, Tomohiro Uchimura, Satoshi Iihama, Yuta Yamane, Junta Igarashi, Shunsuke Fukami, Shigemi Mizukami
  • Organizer: スピントロニクス学術研究基盤と連携ネットワーク（Spin-RNJ）シンポジウム、Spin-RNJ 2023年度報告会
• [Presentation] 垂直磁化Mn-Ga上へのGe固相エピタキシー (2024)
  • Author(s): 西岡真人，山田道洋，Deepak Kumar，水上成美，浜屋宏平
  • Organizer: スピントロニクス学術研究基盤と連携ネットワーク（Spin-RNJ）シンポジウム、Spin-RNJ 2023年度報告会
• [Presentation] Growth of tetragonal MnGa nano-layer on metastable cubic AlN films (2024)
  • Author(s): Naoki Kamata, Kenya Suzuki, Deepak Kumar, Shigemi Mizukami
  • Organizer: 第27回半導体におけるスピン工学の基礎と応用(PASPS27)
• [Presentation] Spin scattering mechanism in strained n-Si0.1Ge0.9 (2024)
  • Author(s): T. Okada, K. Kawashima, M. Yamada, T. Naito, Y. Wagatsuma, K. Sawano, and K. Hamaya
  • Organizer: 第27回半導体におけるスピン工学の基礎と応用(PASPS27)
• [Presentation] Enhancement of spin signals in CoFe/Sn-doped Ge/Co2FeSi vertical spin-valve devices (2023)
  • Author(s): S. Kusumoto, M. Yamada, A. Yamada, K. Sawano, and K. Hamaya
  • Organizer: MRM2023/IUMRS-ICA2023
  • Int'l Joint Research
• [Presentation] Ultrafast collapse of octupole order in antiferromagnetic Mn3Sn films (2023)
  • Author(s): Zaizhou Jin, Tomohiro Uchimura, Satoshi Iihama, Yuta Yamane, Junta Igarashi, Shunsuke Fukami, Shigemi Mizukami
  • Organizer: The 7th Symposium for the Core Research Clusters for Materials Science and Spintronics and the 6th Symposium on International Joint Graduate Program in Materials Science and Spintronics
  • Int'l Joint Research
• [Presentation] Inverse magneto-optical effect in Co-Pt disordered alloy films (2023)
  • Author(s): 抜井康起、飯浜賢志、水上成美
  • Organizer: 第47回日本磁気学会学術講演会
• [Presentation] スピン輸送測定を用いた歪みSi0.1Ge0.9伝導帯バレー分裂の推定と低温における不純物散乱の影響 (2023)
  • Author(s): 岡田拓也，川嶌一彰，山田道洋，内藤貴大, 我妻勇哉，澤野憲太郎，浜屋宏平
  • Organizer: 第47回日本磁気学会学術講演会
• [Presentation] Exploring advanced materials for spintronics (2023)
  • Author(s): Shigemi Mizukami
  • Organizer: Spintronics and Quantum Transformation (Spin-QX 2023)
  • Int'l Joint Research / Invited
• [Presentation] Low-temperature annealing effect on spin transport in lateral spin valve devices with Co-based Heusler alloys/Ge heterostructures (2023)
  • Author(s): M. Yamada, N. Sugiyama, K. Sumi, K. Oki, K. Sawano, and K. Hamaya
  • Organizer: 第84回応用物理学会秋季学術講演会,
• [Presentation] Molecular beam epitaxy growth of ferromagnetic Heusler alloy films on SiGe(111) grown by Al-Ge-paste-induced liquid phase epitaxy (2023)
  • Author(s): M. Yamada, K. Sumi, Ai. I. Osaka, A. N. Hattori, Y. Wagatsuma, K. Sawano, S. Yamada, S. Suzuki, M. Dhamrin, and K. Hamaya
  • Organizer: ISTDM-ICSI-2023
  • Int'l Joint Research
• [Presentation] Detection of magnetoresistance effect in all-epitaxial Co2MnSi/Ge/Co2MnSi vertical spin-valve devices on Si(111) (2023)
  • Author(s): A. Yamada, M. Yamada, S. Kusumoto, Y. Wagatsuma, S. Yamada, K. Sawano, and K. Hamaya
  • Organizer: ISTDM-ICSI-2023
  • Int'l Joint Research
• [Presentation] Topologically Influenced Spintronic Terahertz Emission in Co2MnGa Weyl Semimetal (2023)
  • Author(s): R. Mandal, R. Momma, K. Ishibashi, S. Iihama, K. Suzuki, S. Mizukami,
  • Organizer: INTERMAG 2023
  • Int'l Joint Research
• [Presentation] Structural and magnetic properties of CoFe/Sn-doped Ge/Co2FeSi for vertical spin-valve devices on Si (2023)
  • Author(s): S. Kusumoto, M. Yamada, A. Yamada, Y. Wagatsuma, K. Sawano, and K. Hamaya,
  • Organizer: INTERMAG 2023
  • Int'l Joint Research
• [Presentation] Investigation of damping in FeCo (2023)
  • Author(s): Zaizhou Jin, Ruma Mandal, Shigemi Mizukami
  • Organizer: INS-ECRM 2023
  • Int'l Joint Research
• [Presentation] 垂直磁化 Mn-Ga上へのGeエピタキシャルスピンバルブ構造の作製 (2023)
  • Author(s): 中村太一、山田道洋、Deepak Kumar、水上成美、浜屋宏平
  • Organizer: 「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
• [Presentation] Low Gilbert damping in FeCo alloys films (2023)
  • Author(s): Zaizhou Jin, Ruma Mandal, Shigemi Mizukami
  • Organizer: Symposium of the Spintronics Research Network of Japan
• [Presentation] Micromagnetic simulation of magnetic nano-particles detected using spin-wave (2023)
  • Author(s): Shunki Nakamura, Satoshi Iihama, Shigemi Mizukami
  • Organizer: Symposium of the Spintronics Research Network of Japan
• [Presentation] Bi/Co二層膜におけるレーザー励起テラヘルツ波放射 (2023)
  • Author(s): 石橋一晃, 飯浜賢志, 水上成美
  • Organizer: 「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
• [Presentation] CoPt合金における逆ファラデー効果の組成依存性 (2023)
  • Author(s): 抜井康起，水上成美，飯浜賢志
  • Organizer: 「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
• [Presentation] Tunnel magnetoresistance in ultrathin Mn-based perpendicular magnetic tunnel junctions grown on highly mismatched sapphire substrates (2023)
  • Author(s): N. Kamata, S. Mizukami, K. Z. Suzuki
  • Organizer: The 70th JSAP Spring Meeting
• [Presentation] Gilbert damping in Pt/Co films with different capping layers (2023)
  • Author(s): Yusuke Ichinohe, Ruma Mandal, Shigemi Mizukami
  • Organizer: The 70th JSAP Spring Meeting
• [Presentation] Low Gilbert damping and damping anisotropy in FexCo1-x alloys films (2023)
  • Author(s): Zaizhou Jin, Ruma Mandal, Shigemi Mizukami
  • Organizer: The 70th JSAP Spring Meeting
• [Presentation] 強磁性ホイスラー合金Co2FeSi上へのGeエピタキシャル成長におけるSn添加の効果 (2023)
  • Author(s): 楠本 修平, 山田 道洋, 山田 敦也, 我妻 勇哉, 澤野 憲太郎, 浜屋 宏平
  • Organizer: 第70回応用物理学会春季学術講演会
• [Presentation] Effect of carrier concentration on low-temperature spin transport in strained n-Si0.1Ge0.9 (2023)
  • Author(s): Kazuaki Kawashima, Takahiro Naito, Michihiro Yamada, Takuya Okada, Youya Wagatsuma, Kentarou Sawano, Kohei Hamaya
  • Organizer: The 70th JSAP Spring Meeting
• [Presentation] Micromagnetic simulation of magnetic nano-particles detected using spin-wave (2023)
  • Author(s): Shunki Nakamura, Satoshi Iihama, Shigemi Mizukami
  • Organizer: The 70th JSAP Spring Meeting
• [Presentation] 磁性ヘテロ構造薄膜の超高速スピン制御 (2023)
  • Author(s): 飯浜賢志, 石橋一晃, 水上成美
  • Organizer: The 70th JSAP Spring Meeting
  • Invited
• [Presentation] Nano-scale reservoir computing based on propagating spin-waves in a ferromagnetic thin film (2023)
  • Author(s): Satoshi Iihama, Yuya Koike, Shigemi Mizukami, Natsuhiko Yoshinaga
  • Organizer: The 70th JSAP Spring Meeting
• [Presentation] Perpendicular magnetized tetragonal Mn-based ultrathin films grown on highly mismatched sapphire substrate (2022)
  • Author(s): N. Kamata, S. Mizukami, K. Z. Suzuki
  • Organizer: The 6th Symposium for the Core Research Clusters for Materials Science and Spintronics, and the 5th Symposium on International Joint Graduate Program in Materials Science
  • Int'l Joint Research
• [Presentation] Long-distance spin transport in strained SiGe (2022)
  • Author(s): Naito Takahiro, Yamada Michihiro, Wagatsuma Youya, Sawano Kentarou, Hamaya Kohei
  • Organizer: 67th Annual Conference on Magnetism and Magnetic Materials (MMM 2022)
  • Int'l Joint Research
• [Presentation] Room temperature spin signals improved by low-temperature annealing in Co2MnSi/Fe/Ge lateral spin-valve devices (2022)
  • Author(s): Yamada Michihiro, Sumi Kazuaki, Naito Takahiro, Sawano Kentarou, Hamaya Kohei
  • Organizer: 67th Annual Conference on Magnetism and Magnetic Materials (MMM 2022)
  • Int'l Joint Research
• [Presentation] Perpendicularly magnetized [Co/Pd]n/Co2FeAl0.5Si0.5/Fe multilayers on Ge for semiconductor spintronic applications (2022)
  • Author(s): R. Nishimura, M. Yamada, Y. Shiratsuchi, R. Nakatani, and K. Hamaya
  • Organizer: 22nd International Vacuum Congress (IVC-22)
  • Int'l Joint Research
• [Presentation] Epitaxial growth of tetragonal Mn-based ultrathin films on highly mismatched substrate (2022)
  • Author(s): N. Kamata, S. Mizukami and K. Z. Suzuki
  • Organizer: The 83th JSAP Autumn Meeting
• [Presentation] Low magnetic Gilbert damping in epitaxial films of FexCo1-x alloys (2022)
  • Author(s): Zaizhou Jin, Ruma Mandal, Shigemi Mizukam
  • Organizer: The 83th JSAP Autumn Meeting
• [Presentation] Gilbert damping in Pt/Co/X(X=Pt,Au) films with perpendicular magnetic anisotropy (2022)
  • Author(s): Yusuke Ichinohe, Satoshi Iihama, Ruma Mandal, Shigemi Mizukami
  • Organizer: The 83th JSAP Autumn Meeting
• [Presentation] Laser pulse-induced THz emission in Bi/Co structure (2022)
  • Author(s): Kazuaki Ishibashi, Satoshi Iihama, Shigemi Mizukami
  • Organizer: The 83th JSAP Autumn Meeting
• [Presentation] Effect of insertion layer to the MnGa/CoMn interface on tunnel magnetoresistance (2022)
  • Author(s): Kazuya Z. Suzuki, Shigemi Mizukami
  • Organizer: The 83th JSAP Autumn Meeting
• [Presentation] Quadrupole electronic structure in Mn3-xGa studied by angular-dependent x-ray magnetic linear dichroism (2022)
  • Author(s): Jun Okabayashi、Yoshio Miura、Kazuya Z. Suzuki、Shigemi Mizukami
  • Organizer: The 83th JSAP Autumn Meeting
• [Presentation] Tunnel magnetoresistance in the ultrathin MnGa-based perpendicular MTJs with bcc-Co based interlayers (2022)
  • Author(s): K. Z. Suzuki, T. Ichinose, S. Iihama, R. Monma, N. Kamata, S. Mizukami
  • Organizer: the 24th International Colloquium on Magnetic Films and Surfaces (ICMFS-2022)
  • Int'l Joint Research
• [Presentation] Two-terminal magnetoresistance ratio in Co-based Heusler alloy/germanium lateral spin-valve devices (2022)
  • Author(s): M. Yamada, K. Sumi, T. Naito, K. Sawano, and K. Hamaya
  • Organizer: 15th Joint MMM-INTERMAG Conference (2022 Joint)
  • Int'l Joint Research
• [Presentation] 縦型半導体スピン素子を目指したCo2FeSi上の高品質Ge成長と室温磁気抵抗比の増大 (2022)
  • Author(s): 山田 敦也，山田 道洋，山田 晋也，澤野 憲太郎，浜屋 宏平
  • Organizer: 第69回応用物理学会春季学術講演会
  • Invited
• [Presentation] Spintronic materials and devices: electrical and optical control of spins (2021)
  • Author(s): Shigemi Mizukami
  • Organizer: Joint Workshop between SUSTech & AIMR
  • Int'l Joint Research / Invited
• [Presentation] 計算科学と連携したトンネル磁気抵抗素子材料の探索 (2021)
  • Author(s): 水上成美、廣畑貴文、白井正文
  • Organizer: 第82回応用物理学会秋季学術講演会
  • Invited
• [Presentation] Enhancement of tunnel magnetoresistance in perpendicular magnetic tunnel junctions using L10-MnGa/bcc-CoMn electrode (2021)
  • Author(s): Kazuya Suzuki, Tomohiro Ichinose, Satoshi Iihama, Ren Monma, Shigemi Mizukami
  • Organizer: The 5th Symposium for the Core Research Clusters for Materials Science and Spintronics
  • Int'l Joint Research
• [Presentation] Quadrupole electronic structure in Mn3-xGa studied by angular-dependent x-ray magnetic linear dichroism (2021)
  • Author(s): Jun Okabayashi, Yoshio Miura, Kazuya Z. Suzuki, Shigemi Mizukami
  • Organizer: 第69回応用物理学会春季学術講演会
• [Presentation] 半導体への高効率スピン注入とゲルマニウムスピントロニクスについて (2021)
  • Author(s): 浜屋宏平
  • Organizer: 応用物理学会「強的秩序とその操作に関わる研究会 : 夏の学校」
  • Invited
• [Presentation] Co2FeSi上へのGe薄膜の高品質化と縦型Ge素子におけるMR比の増大 (2021)
  • Author(s): Atsuya Yamada, Michihiro Yamada, Shinya Yamada, Kentarou Sawano, and Kohei Hamaya
  • Organizer: 第26回半導体におけるスピン工学の基礎と応用
• [Book] 磁気ダンピング、第3章、第5節、スピントロニクスハンドブック (2023)
  • Author(s): 水上成美
  • Total Pages: 800
  • Publisher: (株)エヌ・ティー・エス
  • ISBN: 9784860438425
• [Book] 垂直磁化を示すマンガン磁性合金、第9章、第1節、第2項、スピントロニクスハンドブック (2023)
  • Author(s): 鈴木和也、水上成美
  • Total Pages: 800
  • Publisher: (株)エヌ・ティー・エス
  • ISBN: 9784860438425
• [Book] パルス光磁気計測、第19章、スピントロニクスハンドブック (2023)
  • Author(s): 飯浜賢志、水上成美
  • Total Pages: 800
  • Publisher: (株)エヌ・ティー・エス
  • ISBN: 9784860438425
• [Remarks] 水上研究室ウェブサイト
  • URL: https://www.wpi-aimr.tohoku.ac.jp/mizukami_lab/
• [Remarks] 浜屋研究室ウェブサイト
  • URL: http://www.semi.ee.es.osaka-u.ac.jp/hamayalab/
• [Remarks] 水上研究室ウエブサイト
  • URL: https://www.wpi-aimr.tohoku.ac.jp/mizukami_lab/
• [Remarks] 浜屋研究室ウエブサイト
  • URL: http://www.semi.ee.es.osaka-u.ac.jp/hamayalab/
• [Patent(Industrial Property Rights)] 磁気抵抗効果素子 (2023)
  • Inventor(s): 水上成美（他6名）
  • Industrial Property Rights Holder: 水上成美（他6名）
  • Industrial Property Rights Type: 特許
  • Filing Date: 2023
  • Overseas
• [Patent(Industrial Property Rights)] 磁気抵抗効果素子 (2023)
  • Inventor(s): 水上成美,一ノ瀬智浩,辻川雅人,ロイトゥファン,白井正文
  • Industrial Property Rights Holder: 水上成美,一ノ瀬智浩,辻川雅人,ロイトゥファン,白井正文
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2023-005203
  • Filing Date: 2023