Optical Spin Conversion

2018 Fiscal Year Annual Research Report

• Project Area: nano spin conversion science
• Project/Area Number: 26103004
• Research Institution: Osaka University
• Principal Investigator: 大岩 顕 大阪大学, 産業科学研究所, 教授 (10321902)
• Co-Investigator(Kenkyū-buntansha): 水上 成美 東北大学, 材料科学高等研究所, 教授 (00339269) ; 塚本 新 日本大学, 理工学部, 教授 (30318365) ; 安藤 和也 慶應義塾大学, 理工学部(矢上), 准教授 (30579610) ; 佐藤 琢哉 九州大学, 理学研究院, 准教授 (40451885)
• Project Period (FY): 2014-07-10 – 2019-03-31
• Keywords: 光学的スピン変換 / 円偏光 / 界面スピン変換 / マグノン・スピン流 / コヒーレント変換

Outline of Annual Research Achievements

大岩は、公募研究の東大松尾と共同して、直線偏光単一光子から単一電子スピンへ重ね合わせ状態の変換を実証した。これは単一光子から単一電子スピンへの量子状態のコヒーレント変換が実現できていることを示唆しており、当初目標の一つを達成した。また高効率変換のため、ゲート制御量子ドットとプラズモンアンテナとやフォトニック結晶とを組み合わせた新しい素子を実現した。
水上は、反強磁性を示す物質系におけるパルス光誘起コヒレントマグノンについて研究した。まず非晶質フェリ磁性金属において、ヘリシティの異なるマグノンモードを観測し、そのモードを制御できることを明らかにした。また反強磁性ナノヘテロ構造において、反強磁性的マグノンモードを明瞭に観察しそのスピン角運動量緩和過程を明らかにした。
塚本は、全光型磁化反転（AOS）現象誘起条件の一つである超短パルス光が物質を通過する時間領域での光物質作用制御に主眼を置き、光学干渉を利用した反転誘起効率の増大、空間的パターン状反転誘起、また、径偏光超短パルスビーム光による照射光の空間的角運動量分布形成による反転領域の局所化、が可能である事を実証した。
佐藤は、マルチフェロイック物質BiFeO3において、フェムト秒光パルスを用いたマグノンおよびフォノン・ポラリトンの同時励起とその時間分解イメージングに成功した。また、円偏光ラマン散乱の手法を開発し、これまで困難とされていた強磁性体におけるモード同定（マグノン、フォノン）を行った。
安藤は、金属/絶縁体界面におけるマイクロ波から伝導電子スピン流への変換に関する実験により、磁性絶縁体のマグノン・フォノン結合モードによって生成されるスピン流を観測することに成功した。さらに、パラメトリックポンピングを用いたマグノンモード選択的スピン流生成により、反強磁性体中スピン流のモード依存性を明らかにした。

Research Progress Status

平成30年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

平成30年度が最終年度であるため、記入しない。

Research Products

• [Int'l Joint Research] Freie Universitaet Berlin/Ernst-Moritz-Arndt University/Ruhr University Bochum(ドイツ)
  • Country Name: GERMANY
  • Counterpart Institution: Freie Universitaet Berlin/Ernst-Moritz-Arndt University/Ruhr University Bochum
  • # of Other Institutions: 6
• [Int'l Joint Research] Radboud University/University of Groningen(オランダ)
  • Country Name: NETHERLANDS
  • Counterpart Institution: Radboud University/University of Groningen
• [Int'l Joint Research] Korea University/KAIST/Seoul National University(韓国)
  • Country Name: KOREA (REP. OF KOREA)
  • Counterpart Institution: Korea University/KAIST/Seoul National University
• [Int'l Joint Research] Jinan University/Huazhong UST(中国)
  • Country Name: CHINA
  • Counterpart Institution: Jinan University/Huazhong UST
• [Int'l Joint Research] Moscow Technological University/Ioffe Institute(ロシア連邦)
  • Country Name: RUSSIA FEDERATION
  • Counterpart Institution: Moscow Technological University/Ioffe Institute
• [Int'l Joint Research]
  • # of Other Countries: 4
• [Journal Article] Photogeneration of a single electron from a single Zeeman-resolved light-hole exciton with preserved angular momentum (2019)
  • Author(s): K. Kuroyama, M. Larsson, C. Y. Chang, J. Muramoto, K. Heya, T. Fujita, G. Allison, S. R. Valentin, A. Ludwig, A. D. Wieck, S. Matsuo, A. Oiwa, and S. Tarucha
  • Journal Title: Physical Review B Volume: 99 Pages: 085203/1-5
  • DOI: 10.1103/PhysRevB.99.085203
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] All-optical probe of sub-THz spin precession in a L10 MnGa, nanolayer (2019)
  • Author(s): Shigemi Mizukami, Kazuya Z Suzuki, Yoshio Miura
  • Journal Title: Applied Physics Express Volume: 12 Pages: 043003/1-4
  • DOI: 10.7567/1882-0786/ab0c48
  • Peer Reviewed
• [Journal Article] Low Magnetic Damping of Ferrimagnetic GdFeCo Alloys (2019)
  • Author(s): Duck-Ho Kim, Takaya Okuno, Se Kwon Kim, Se-Hyeok Oh, Tomoe Nishimura, Yuushou Hirata, Yasuhiro Futakawa, Hiroki Yoshikawa, Arata Tsukamoto, Yaroslav Tserkovnyak, Yoichi Shiota, Takahiro Moriyama, Kab-Jin Kim, Kyung-Jin Lee, and Teruo Ono
  • Journal Title: PHYSICAL REVIEW LETTERS Volume: 122 Pages: 127203/1-6
  • DOI: 10.1103/PhysRevLett.122.127203
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Angular Momentum Flow during Ultrafast Demagnetization of a Ferrimagnet (2019)
  • Author(s): Martin Hennecke, Ilie Radu, Radu Abrudan, Torsten Kachel, Karsten Holldack, Rolf Mitzner, Arata Tsukamoto, and Stefan Eisebitt
  • Journal Title: PHYSICAL REVIEW LETTERS Volume: 122 Pages: 157202/1-5
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Bulk Dzyaloshinskii-Moriya Interaction in Amorphous Ferrimagnetic Alloys (2019)
  • Author(s): Duck-Ho Kim, Mitsutaka Haruta, Hye-Won Ko, Gyungchoon Go, Hyeon-Jong Park, Tomoe Nishimura, Dae-Yun Kim, Takaya Okuno, Yuushou Hirata, Yasuhiro Futakawa, Hiroki Yoshikawa, Woo Seung Ham, Sanghoon Kim, Hiroki Kurata, Arata Tsukamoto, Yoichi Shiota, Takahiro Moriyama, Sug-Bong Choe, Kyung-Jin Lee, and Teruo Ono
  • Journal Title: Nature Materials Volume: 印刷中 Pages: 印刷中
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Ultrafast excitation of coherent phonons in iron garnet (2019)
  • Author(s): P. Khan, M. Kanamaru, W. H. Hsu, M. Kichise, Y. Fujii, A. Koreeda, and T. Satoh
  • Journal Title: J. Phys.: Condens. Matter Volume: 印刷中 Pages: 印刷中
  • DOI: 10.1088/1361-648X/ab1665
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Spin absorption at a ferromagnetic-metal/platinum-oxide interface (2019)
  • Author(s): Akio Asami, Hongyu An, Akira Musha, Tenghua Gao, Makoto Kuroda, and Kazuya Ando
  • Journal Title: Physical Review B Volume: 99 Pages: 024432/1-7
  • DOI: 10.1103/PhysRevB.99.024432
  • Peer Reviewed
• [Journal Article] Angular momentum transfer from a single-photon polarization to an 1 electron spin in a gate defined quantum dot (2019)
  • Author(s): Takafumi Fujita, Kazuhiro Morimoto, Haruki Kiyama, Giles Allison, Marcus Larsson Arne Ludwig, Sascha R. Valentin, Andreas D. Wieck, Akira Oiwa and Seigo Tarucha
  • Journal Title: Nature Communications Volume: 印刷中 Pages: 印刷中
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Single-electron charge sensing in self-assembled quantum dots (2018)
  • Author(s): Haruki Kiyama, Alexander Korsch, Naomi Nagai, Yasushi Kanai, Kazuhiko Matsumoto, Kazuhiko Hirakawa, and Akira Oiwa
  • Journal Title: Scientific Reports Volume: 8 Pages: 13188/1-6
  • DOI: 10.1038/s41598-018-31268-x
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] ポアンカレインターフェース －単一光子偏光から単一電子スピンへの量子インターフェース－ (2018)
  • Author(s): 大岩顕, 藤田高史, 木山治樹, 黒山和幸, 松尾貞茂, 樽茶清悟
  • Journal Title: 光学 Volume: 47 Pages: 148-154
  • Peer Reviewed
• [Journal Article] Synthesis of metastable B2-type Fe-Sn alloy epitaxial films and study of their magnetic properties (2018)
  • Author(s): Yuki Goto, Masato Araki, Nozomi Takahashi, Takashi Yanase, Toshihiro Shimada, Masahito Tsujikawa, Masafumi Shirai, Akira Kamimaki, Satoshi Iihama, Shigemi Mizukami and Taro Nagahama
  • Journal Title: Jpn. J. Appl. Phys Volume: 57 Pages: 120302/1-5
  • DOI: 10.7567/JJAP.57.120302
  • Peer Reviewed
• [Journal Article] Modulation of magnetization dynamics in an epitaxial Heusler ferromagnet due to pure spin current in a laterally configured structure (2018)
  • Author(s): Soichiro Oki, Yuta Sasaki, Yuichi Kasatani, Shinya Yamada, Shigemi Mizukami, Yukio Nozaki, Kohei Hamaya
  • Journal Title: J. Phys.: Condens. Matter Volume: 30 Pages: 255802/1-5
  • DOI: 10.1088/1361-648X/aac400
  • Peer Reviewed
• [Journal Article] Determination of perpendicular magnetic anisotropy based on the magnetic droplet nucleation (2018)
  • Author(s): Tomoe Nishimura, Duck-Ho Kim, Takaya Okuno, Yuushou Hirata, Yasuhiro Futakawa, Hiroki Yoshikawa, Sanghoon Kim, Arata Tsukamoto, Yoichi Shiota, Takahiro Moriyama and Teruo Ono
  • Journal Title: Japanese Journal of Applied Physics Volume: 57, No. 5 Pages: 050308/1-3
  • DOI: 10.7567/JJAP.57.050308
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Effect of depinning field on determination of angular-momentum-compensation temperature of ferrimagnets (2018)
  • Author(s): Yuushou Hirata, Duck-Ho Kim, Takaya Okuno, Tomoe Nishimura, Yasuhiro Futakawa, Hiroki Yoshikawa, Wooseung Ham, Sanghoon Kim, Arata Tsukamoto, Yoichi Shiota, Takahiro Moriyama, Kab-Jin Kim, and Teruo Ono
  • Journal Title: Applied Physics Express Volume: 11 Pages: 063001/1-4
  • DOI: 10.7567/APEX.11.063001
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Towards massively parallelized all-optical magnetic recording (2018)
  • Author(s): C. S. Davies, J. Janusonis, A. V. Kimel, A. Kirilyuk, A. Tsukamoto, Th. Rasing, and R. I. Tobey
  • Journal Title: Journal of Applied Physics Volume: 123 Pages: 213904(/1-5
  • DOI: 10.1063/1.5003713
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Correlation between compensation temperatures of magnetization and angular momentum in GdFeCo ferrimagnets (2018)
  • Author(s): Yuushou Hirata, Duck-Ho Kim, Takaya Okuno, Tomoe Nishimura, Dae-Yun Kim, Yasuhiro Futakawa, Hiroki Yoshikawa, Arata Tsukamoto, Kab-Jin Kim, Sug-Bong Choe, and Teruo Ono
  • Journal Title: PHYSICAL REVIEW B Volume: 97 Pages: 220403(R)/1-6
  • DOI: 10.1103/PhysRevB.97.220403
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] All-optical helicity-dependent magnetic switching by first-order azimuthally polarized vortex beams (2018)
  • Author(s): Sicong Wang, Chen Wei, Yuanhua Feng, Yaoyu Cao, Haiwei Wang, Weiming Cheng, Changsheng Xie, Arata Tsukamoto, Andrei Kirilyuk, Theo Rasing, Alexey V. Kimel, and Xiangping Li
  • Journal Title: Appl. Phys. Lett Volume: 113 Pages: 171108/1-5
  • DOI: 10.1063/1.5051576
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Surface plasmon-mediated nanoscale localization of laser-driven sub-THz spin dynamics in magnetic dielectrics (2018)
  • Author(s): A. L. Chekhov, A. I. Stognij, T. Satoh, T. V. Murzina, I. Razdolski, and A. Stupakiewicz
  • Journal Title: Nano Letters Volume: 18 Pages: 2970-2975
  • DOI: 10.1021/acs.nanolett.8b00416
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Optical determination of the exchange stiffness constant in an iron garnet (2018)
  • Author(s): K. Matsumoto, T. Braecher, P. Pirro, T. Fischer, D. Bozhko, M. Geilen, F. Heussner, T. Meyer, B. Hillebrands, and T. Satoh
  • Journal Title: Jpn. J. Appl. Phys. Volume: 57 Pages: 070308/1-3
  • DOI: 10.7567/JJAP.57.070308
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Excitation of multiple phonon modes in copper metaborate CuB2O4 via nonresonant impulsive stimulated Raman scattering (2018)
  • Author(s): K. Imasaka, R. V. Pisarev, L. N. Bezmaternykh, T. Shimura, A. M. Kalashnikova, and T. Satoh
  • Journal Title: Phys. Rev. B Volume: 98 Pages: 054303-1-13
  • DOI: 10.1103/PhysRevB.98.054303
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Spin Pumping Driven by Magnon Polarons (2018)
  • Author(s): Hiroki Hayashi and Kazuya Ando
  • Journal Title: Physical Review Letters Volume: 121 Pages: 237202/1-6
  • DOI: 10.1103/PhysRevLett.121.237202
  • Peer Reviewed
• [Journal Article] Enhancement of two-magnon scattering induced by randomly-distributed antiferromagnetic exchange field (2018)
  • Author(s): Hiroto Sakimura, Akio Asami, Takashi Harumoto, Yoshio Nakamura, Ji Shi, and Kazuya Ando
  • Journal Title: Physical Review B Volume: 98 Pages: 144406/1-7
  • DOI: 10.1103/PhysRevB.98.144406
  • Peer Reviewed
• [Journal Article] Giant spin-torque generation by heavily oxidized Pt (2018)
  • Author(s): Hongyu An, Yusuke Kanno, Akio Asami, and Kazuya Ando
  • Journal Title: Physical Review B Volume: 98 Pages: 014401/1-5
  • DOI: 10.1103/PhysRevB.98.014401
  • Peer Reviewed
• [Journal Article] Intrinsic spin-orbit torque arising from the Berry curvature in a metallic-magnet/Cu-oxide interface (2018)
  • Author(s): Tenghua Gao, Alireza Qaiumzadeh, Hongyu An, Akira Musha, Yuito Kageyama, Ji Shi, and Kazuya Ando
  • Journal Title: Physical Review Letters Volume: 121 Pages: 017202/1-6
  • DOI: 10.1103/PhysRevLett.121.017202
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Manipulation of spin-torque generation using ultrathin Au (2018)
  • Author(s): Hongyu An, Satoshi Haku, Yusuke Kanno, Hiroyasu Nakayama, Hideyuki Maki, Ji Shi, and Kazuya Ando
  • Journal Title: Physical Review Applied Volume: 9 Pages: 064016/1-7
  • DOI: 10.1103/PhysRevApplied.9.064016
  • Peer Reviewed
• [Presentation] (110)-GaAs/AlGaAs量子井戸構造における逆スピンホール効果を用いた光励起スピン検出 (2019)
  • Author(s): 茶谷知樹, 中川智裕, J. Ritzmann, A. Ludwig, A. Wieck, 酒井裕司, 大岩顕
  • Organizer: 日本物理学会2019年春季大会
• [Presentation] アンドープGaAs/AlGaAs量子井戸における2次元電子系に対する光照射の影響 (2019)
  • Author(s): 林亮太, 藤田高史, 井手西広樹, 好田誠, 新田淳作, J.Ritzmann, A.Ludwig, A.D.Wieck, 大岩顕
  • Organizer: 日本物理学会2019年春季大会
• [Presentation] SiGe自己形成量子ドットの電気伝導に対するサイドゲート効果 (2019)
  • Author(s): 田中萌, 川口紀俊, 木山治樹, Mario Bamesreiter, Dominique Bougeard, 大岩顕
  • Organizer: 日本物理学会2019年春季大会
• [Presentation] 変調ドープオーミック接触を用いた電界誘起二次元電子系の作製と光安定性の評価 (2019)
  • Author(s): 福田源希, 林亮太, 藤田高史, 金井康, 松本和彦, J.Ritzmann, A.Ludwig, A.D.Wieck, 大岩顕
  • Organizer: 日本物理学会2019年春季大会
• [Presentation] ゲート制御量子ドットを含む2次元スラブ型フォトニック結晶の光学・電気的特性の研究 (2019)
  • Author(s): 酒井裕司, 田尻武義, 車一宏, 木山治樹, 大岩顕, 中島峻, 樽茶清悟, 岩本敏, 荒川泰彦
  • Organizer: 日本物理学会2019年春季大会
• [Presentation] 量子格子模型ソルバーHΦを用いた量子ドット系のスピン緩和率解析ツールの開発 (2019)
  • Author(s): 吉見一慶, 加藤岳生, 木山治樹, 大岩顕
  • Organizer: 日本物理学会2019年春季大会
• [Presentation] Laser pulse-induced spin current in ferromagnetic metal layer (2019)
  • Author(s): Y. Sasaki, S. Iihama, K. Z. Suzuki, S. Mizukami
  • Organizer: 平成30年度スピン変換年次報告会
• [Presentation] Terahertz probe of spin-to-charge conversion using CoFeB films with various capping materials (2019)
  • Author(s): Satoshi Iihama, Tomoki Tsuchiya, Yuta Sasaki, Shigemi Mizukami
  • Organizer: 平成30年度スピン変換年次報告会
• [Presentation] Pulse-laser-induced THz emission from Ta/CoFeB/Ir/CoFeB/Ta films (2019)
  • Author(s): Y. Ogasawara, Y. Sasaki, A. Kamimaki, S. Iihama, K. Z. Suzuki, S. Mizukami
  • Organizer: 平成30年度スピン変換年次報告会
• [Presentation] All-optical measurements of magnetization precession in ferrimagnets revisited (2019)
  • Author(s): Shigemi Mizukami
  • Organizer: 2nd SG-Spin/Tohoku Workshop on Spintronics
  • Int'l Joint Research / Invited
• [Presentation] 超短パルス光を用いた金属中のスピンダイナミクスとスピン流の検出 (2019)
  • Author(s): 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
  • Invited
• [Presentation] Laser pulse-induced terahertz emission in ferromagnetic metal layer (2019)
  • Author(s): Y. Sasaki, S. Iihama, K. Z. Suzuki, and S. Mizukami
  • Organizer: The 2nd Symposium for World Leading Research Centers
  • Int'l Joint Research
• [Presentation] Exploring antiferromagnetic resonance in metallic ferrimagnets (2019)
  • Author(s): Shigemi Mizukami
  • Organizer: International School on Spintronics and Korea-Japan Spintronics Workshop- Topological Phenomena in Magnetism
  • Int'l Joint Research / Invited
• [Presentation] Fabrication of metastable B2-type Fe1-xSnx epitaxial films on MgO(001) substrates (2019)
  • Author(s): Y. Goto, M. Araki, N. Takahashi, T. Yanase, T. Shimada, M. Tsujikawa, M. Shirai, A. Kamimaki, S. Iihama, S. Mizukami, T. Nagahama
  • Organizer: 2019 Joint MMM-Intermag Conference
  • Int'l Joint Research
• [Presentation] Laser-induced THz emission in Ta/CoFeB/MgO films with different compositions (2019)
  • Author(s): Y. Sasaki, S. Iihama, K. Suzuki, S. Mizukami
  • Organizer: 2019 Joint MMM-Intermag Conference
  • Int'l Joint Research
• [Presentation] 磁化動特性制御に向けたGdFeCo/NiFe交換結合膜の静・動磁気特性評価 (2019)
  • Author(s): 秋山竜, 塚本新
  • Organizer: 電気学会マグネティックス研究会
• [Presentation] 補償点を有するフェリ磁性体における磁気共鳴の温度依存性 (2019)
  • Author(s): 奥野尭也, Se Kwon Kim, 森山貴広, Duck-Ho Kim, 水野隼翔, 池渕徹也, 平田雄翔, 吉川大貴, 塚本新, Kab-Jin Kim, 塩田陽一, Kyung-Jin Lee, 小野輝男
  • Organizer: 物理学会 第74回年次大会
• [Presentation] 強磁性薄膜におけるパルス磁場励起スピンダイナミクスの理論と数値計算 (2019)
  • Author(s): 谷脇俊介, 今野克洋, 松本慧太, 佐藤琢哉
  • Organizer: 日本物理学会 「第74回年次大会」
• [Presentation] Z型ヘキサフェライトSr3Co2Fe24O41のラマン散乱分光 (2019)
  • Author(s): 河野輝, 徐維宏, 木村剛, 佐藤琢哉
  • Organizer: 日本物理学会 「第74回年次大会」
• [Presentation] Y3Fe5O12におけるフォノン・マグノン・ラマン散乱 (2019)
  • Author(s): 徐維宏, 吉瀬みのり, 藤井康裕, 是枝聡肇, 佐藤琢哉
  • Organizer: 日本物理学会 「第74回年次大会」
• [Presentation] BiFeO3の偏光ラマン分光 (2019)
  • Author(s): 吉瀬みのり, 徐維宏, 伊藤利充, 佐藤琢哉
  • Organizer: 日本物理学会 「第74回年次大会」
• [Presentation] BiFeO3におけるポンプローブイメージング (2019)
  • Author(s): 松本慧大, 伊藤利充, 佐藤琢哉
  • Organizer: 日本物理学会 「第74回年次大会」
• [Presentation] フェムト秒光パルスによるBiFeO3のマグノンの時間分解測定 (2019)
  • Author(s): 金丸将孝, Pritam Khan, 伊藤利充, 佐藤琢哉
  • Organizer: 日本物理学会 「第74回年次大会」
• [Presentation] Spin Pumping driven by magnon-phonon coupled mode (2019)
  • Author(s): Hiroki Hayashi and Kazuya Ando
  • Organizer: APS March Meeting
  • Int'l Joint Research
• [Presentation] 金属酸化物スピンオービトロニクスの展開 (2019)
  • Author(s): 安藤和也
  • Organizer: 第38回光機能磁性デバイス・材料専門研究会
  • Invited
• [Presentation] Spin-orbit torques in metal-oxide heterostructures (2019)
  • Author(s): K. Ando
  • Organizer: 16th RIEC International Workshop on Spintronics
  • Int'l Joint Research / Invited
• [Presentation] 金属酸化物を用いたスピンオービトロニクス (2019)
  • Author(s): 安藤和也
  • Organizer: 第79回応用物理学会秋季学術講演会 シンポジウム「IoTに資する高周波デバイスにおける機能性酸化物の役割」
  • Invited
• [Presentation] Conversion of quantum states from single photons to single electron spins confined in gate-defined quantum dots (2019)
  • Author(s): A. Oiwa
  • Organizer: 平成30年度ナノスピン変換科学年次報告会
• [Presentation] Irradiation Effects on Induced Electron Conductivity in an un-doped GaAs/AlGaAs Quantum Well Hall Bar (2019)
  • Author(s): T. Fujita, R. Hayashi, M. Kohda, J. Ritzmann, A. Ludwig, J. Nitta, A. D. Wieck, and A. Oiwa
  • Organizer: 平成30年度ナノスピン変換科学年次報告会
• [Presentation] Photoelectron Spin Detection in GaAs/AlGaAs Quantum Wells by Inverse Spin-Hall Effect (2019)
  • Author(s): Y. Sakai, T. Chatani, T. Nakagawa, J. Ritzmann, A. Ludwig, A. D. Wieck, and A. Oiwa
  • Organizer: 平成30年度ナノスピン変換科学年次報告会
• [Presentation] Charge transport through quantum dits formed in a (110) quantum well (2019)
  • Author(s): T. Nakagawa, R. Fukai, Y. Sakai, T. Fujita, H. Kiyama, T. Nakajima, J. Ritzmann, A. Ludwig, A. D, Wieck, S. Tarucha, and A. Oiwa
  • Organizer: 平成30年度ナノスピン変換科学年次報告会
• [Presentation] Characterization of a surface plasmon antenna fabricated on a single heterojunction structure (2019)
  • Author(s): R. Fukai, Y. Sakai, T. Nakagawa, H. Kiyama, and A. Oiwa
  • Organizer: 平成30年度ナノスピン変換科学年次報告会
• [Presentation] Polarization-to-spin conversion and entanglement absorption via a double quantum dot device (2019)
  • Author(s): C.-Y. Chang, K. Kuroyama, S. Matsuo, S. R. Valentin, A. Ludwig, A. D. Wieck, A. Oiwa, and S. Tarucha
  • Organizer: 平成30年度ナノスピン変換科学年次報告会
• [Presentation] Fabrications and transport properties of SiGe self-assembled quantum dots (2018)
  • Author(s): Ｍ. Tanaka, K. Kawaguchi, H. Kiyama, M. Bamesreiter, D. Bougeard, A. Oiwa
  • Organizer: 2018 International Conference on Solid State Devices and Materials (SSDM2018)
  • Int'l Joint Research
• [Presentation] Transport through quantum dots formed in a (110) GaAs quantum well (2018)
  • Author(s): T. Nakagawa, R. Fukai, Y. Sakai, T. Fujita, H. Kiyama, T. Nakajima, J. Ritzmann, A. Ludwig, A. D. Wieck,S. Tarucha, and A. Oiwa
  • Organizer: Spin qubit 4
  • Int'l Joint Research
• [Presentation] Photon-spin conversion using gate-defined GaAs quantum dots (2018)
  • Author(s): Akira Oiwa
  • Organizer: QD2018
  • Int'l Joint Research / Invited
• [Presentation] 量子ドットにおける光―電子スピン量子状態変換 (2018)
  • Author(s): 大岩顕
  • Organizer: 日本物理学会2018年秋季大会 シンポジウム「ナノスピン変換から強結合スピントロニクスへ」
  • Invited
• [Presentation] 単一光子から単一電子スピンへの量子状態変換と強結合化に向けて (2018)
  • Author(s): 大岩顕
  • Organizer: 第12回物性科学領域横断研究会
• [Presentation] アンドープGaAs/AlGaAs 量子井戸を用いたMOSデバイスの作製と界面準位による不安定性 (2018)
  • Author(s): 林亮太, 藤田高史, 井手西広樹, 好田誠, 新田淳作, 大岩顕
  • Organizer: 第12回物性科学領域横断研究会
• [Presentation] Detection of photo-excited spins in a (110)-GaAs/AlGaAs QW by using inverse spin Hall effect (2018)
  • Author(s): T. Chatani, T. Nakagawa, J. Ritzmann, A. Ludwig, A. Wieck, Y. Sakai, A. Oiwa
  • Organizer: 第8回半導体/超伝導体量子効果と量子情報の夏期研修会
• [Presentation] Pulse-laser-induced terahertz emission from CoFeB films with various capping layer (2018)
  • Author(s): Satoshi Iihama、Tomoki Tsuchiya、Yuta Sasaki、Shigemi Mizukami
  • Organizer: 第79回応用物理学会秋季学術講演会
• [Presentation] マンガン界面の磁性、ならびに磁性ナノヘテロ接合からのテラヘルツ波放射 (2018)
  • Author(s): 水上成美
  • Organizer: ナノスピン光科学研究会主催「放射光を用いたナノスピン材料科学の新展開」
  • Invited
• [Presentation] 積層反強磁性体におけるレーザー励起スピン波伝播 (2018)
  • Author(s): 上牧瑛、飯浜賢志、鈴木和也、水上成美
  • Organizer: 第42回日本磁気学会学術講演会
• [Presentation] テラヘルツ波領域における金属磁性薄膜の磁性ならびにテラヘルツ波輻射 (2018)
  • Author(s): 水上成美
  • Organizer: 電気学会マグネティクス・リニアドライブ合同研究会
  • Invited
• [Presentation] Pulse laser-induced terahertz emission for Ta/CoFeB/MgO structure (2018)
  • Author(s): Y. Sasaki, K. Suzuki, S. Mizukami
  • Organizer: 21st International Conference of Magnetism
  • Int'l Joint Research
• [Presentation] Reciprocity and dispersion relation of the pulse laser-induced magnetostatic surface waves in metals (2018)
  • Author(s): A. Kamimaki, S. Iihama, Y. Sasaki, Y. Ando, S. Mizukami
  • Organizer: 21st International Conference of Magnetism
  • Int'l Joint Research
• [Presentation] Manganese alloys and quaternary equiatomic Heusler alloys for advanced magnetic tunnel junctions (2018)
  • Author(s): S. Mizukami
  • Organizer: Collaborative Conference on Materials Research (CCMR)
  • Int'l Joint Research / Invited
• [Presentation] Ultrathin manganese alloys with perpendicular magnetic anisotropy for spintronic devices (2018)
  • Author(s): S. Mizukami
  • Organizer: The 5th International Conference of Asian Union of Magnetics Societies(ICAUMS2018)
  • Int'l Joint Research / Invited
• [Presentation] Tetragonal manganese alloy & quaternary equiatomic Heusler alloys for advanced spintronics applications (2018)
  • Author(s): S. Mizukami
  • Organizer: 7th Workshop of the Core-to-Core Project Tohoku-York-Kaiserslautern, New-Concept Spintronic Devices
  • Int'l Joint Research / Invited
• [Presentation] Thickness Dependence of Pulse Laser-Induced Magnetization Dynamics in Magnetic Metal/ Heavy Metal Layered Structures (2018)
  • Author(s): A. Kamimaki, Y. Sasaki, S. Iihama, K. Z. Suzuki, S. Mizukami
  • Organizer: 7th Workshop Core-to-Core Project Tohoku-York-Kaiserslautern, New concept spintronic devices
  • Int'l Joint Research
• [Presentation] Annealing effect of laser-induced THz emission in Ta/(CoxFe1-x)80B20/MgO films (2018)
  • Author(s): Y. Sasaki, K. Z. Suzuki, S. Mizukami
  • Organizer: 7th Workshop Core-to-Core Project Tohoku-York-Kaiserslautern, New concept spintronic devices
  • Int'l Joint Research
• [Presentation] Ultrafast magnetization switching and Ultrafast spin dependent phenomena (2018)
  • Author(s): Arata Tsukamoto
  • Organizer: The 5th International Conference of Asian Union of Magnetics Societies (IcAUMS 2018)
  • Int'l Joint Research / Invited
• [Presentation] Ultrafast Dynamics of Spin and Orbital Moments upon Demagnetization (2018)
  • Author(s): M. Hennecke, I. Radu, R. Abrudan, T. Kachel, K. Holldack, R. Mitzner, C. Schuessler-Langeheine, A. Tsukamoto, S. Eisebitt
  • Organizer: 9th JEMS conference 2018 (JEMS: The Joint European Magnetic Symposia)
  • Int'l Joint Research
• [Presentation] 希土類-遷移金属フェリ磁性体/4f金属ヘテロ接合におけるスピン軌道トルク (2018)
  • Author(s): 笠谷雄一, 吉川大貴, 塚本新
  • Organizer: 第42回日本磁気学会学術講演会
• [Presentation] 磁気的膜厚依存性抑制層を付加したGdFeCo 薄膜の全光型磁化反転 (2018)
  • Author(s): 飯坂岳, 吉川大貴, 二川康宏, 塚本新
  • Organizer: 第42回日本磁気学会学術講演会
• [Presentation] GdFe合金薄膜におけるGd磁気モーメントと異常ホール効果の相関 (2018)
  • Author(s): :蜂須賀裕重，笠谷 雄一，吉川大貴，塚本新
  • Organizer: 第42回日本磁気学会学術講演会
• [Presentation] 全光型磁化反転誘起材料の効率的光吸収・超薄膜化に向けた積層構造検討 (2018)
  • Author(s): 飯坂岳, 吉川大貴, 塚本新
  • Organizer: 電気学会マグネティックス研究会
• [Presentation] Temperature dependent spin damping in antiferromagnetic h-RMnO3 (2018)
  • Author(s): C. Tzschaschel, M. Weber, T. Satoh, and M. Fiebig
  • Organizer: International Symposium on Spin Waves 2018 (St. Petersburg, Russia)
  • Int'l Joint Research
• [Presentation] Ultrafast excitation of coherent phonons in garnet (2018)
  • Author(s): M. Kanamaru, P. Khan, W. H. Hsu, M. Kichise, Y. Fujii, A. Koreeda, and T. Satoh
  • Organizer: 7th Workshop of the Core-to-Core Project Tohoku-York-Kaiserslautern (Kaiserslautern, Germany)
  • Int'l Joint Research
• [Presentation] Observation of THz coherent phonon modes in multiferroic BiFeO3 by femtosecond laser pulses (2018)
  • Author(s): P. Khan, M. Kanamaru, A. Haizuka, T. Ito, and T. Satoh
  • Organizer: 7th Workshop of the Core-to-Core Project Tohoku-York-Kaiserslautern (Kaiserslautern, Germany)
  • Int'l Joint Research
• [Presentation] Polarized Raman scattering study of multiferroic BiFeO3 single crystal (2018)
  • Author(s): M. Kichise, W. H. Hsu ,T. Ito, and T. Satoh
  • Organizer: 7th Workshop of the Core-to-Core Project Tohoku-York-Kaiserslautern (Kaiserslautern, Germany)
  • Int'l Joint Research
• [Presentation] Brillouin light scattering probing exchange-dominated spin wave (2018)
  • Author(s): K. Matsumoto, T. Bracher, P. Pirro, T. Fischer, D. Bozhko, M. Geilen, F. Heussner, T. Meyer, B. Hillebrands, and T. Satoh
  • Organizer: 7th Workshop of the Core-to-Core Project Tohoku-York-Kaiserslautern (Kaiserslautern, Germany)
  • Int'l Joint Research
• [Presentation] フェムト秒パルスを用いた反強磁性体の超高速制御 (2018)
  • Author(s): 佐藤琢哉
  • Organizer: 日本物理学会「2018年秋季大会」
  • Invited
• [Presentation] 後方散乱マグノンモードを用いた交換スティフネス定数の光学測定 (2018)
  • Author(s): 松本慧大, Thomas Bracher, Philipp Pirro, Tobias Fischer, Dmytro Bozhko, Moritz Geilen, Frank Heussner, Thomas Meyer, Burkard Hillebrands, 佐藤琢哉
  • Organizer: 日本物理学会「2018年秋季大会」
• [Presentation] イットリウム鉄ガーネットY3Fe5O12におけるラマン散乱分光 (2018)
  • Author(s): 徐維宏, 吉瀬みのり, 河野輝, 藤井康裕, 是枝聡肇, 佐藤琢哉
  • Organizer: 日本物理学会「2018年秋季大会」
• [Presentation] Enhancement of photoinduced sub-THz spin precession via the spin-plasmon coupling (2018)
  • Author(s): T. Satoh
  • Organizer: 第79回応用物理学会秋季学術講演会 JSAP-OSA Joint Symposia
  • Int'l Joint Research / Invited
• [Presentation] Estimation of the exchange stiffness constant by using backscattering magnon mode (2018)
  • Author(s): K. Matsumoto, T. Braecher, P. Pirro, T. Fischer, D. Bozhko, M. Geilen, F. Heussner, T. Meyer, B. Hillebrands, and T. Satoh
  • Organizer: 3rd International Advanced School on Magnonics 2018 (National Technical University of Ukraine, Kyiv, Ukraine)
  • Int'l Joint Research
• [Presentation] LiTaO3におけるラマン散乱分光とフォノンの第一原理計算 (2018)
  • Author(s): 河野輝, 徐維宏, 吉瀬みのり, 佐藤琢哉
  • Organizer: 第124回日本物理学会九州支部例会
• [Presentation] 強磁性薄膜におけるパルス磁場励起ダイナミクスの数値シミュレーション (2018)
  • Author(s): 谷脇俊介, 今野克洋, 松本慧大, 佐藤琢哉
  • Organizer: 第124回日本物理学会九州支部例会
• [Presentation] 線形・非線形強磁性共鳴のマイクロマグネティックシミュレーション (2018)
  • Author(s): 吉瀬みのり, 今野克洋, 松本慧大, 佐藤琢哉
  • Organizer: 第124回日本物理学会九州支部例会
• [Presentation] フォノンと結合したマグノンによるスピンポンピング (2018)
  • Author(s): 林宏樹, 安藤和也
  • Organizer: 日本物理学会2018年秋季大会
• [Presentation] Spin-orbitronics in metal-based systems (2018)
  • Author(s): K. Ando
  • Organizer: SPIE, August 19-23, 2018, San Diego, USA
  • Int'l Joint Research / Invited
• [Remarks] 大阪大学 産業科学研究所量子システム創成研究分野（大岩研）
  • URL: http://www.sanken.osaka-u.ac.jp/labs/qse/
• [Remarks] 東北大学 水上研究室
  • URL: https://www.wpi-aimr.tohoku.ac.jp//mizukami_lab/
• [Remarks] 日本大学 塚本研究室
  • URL: http://atlab.ecs.cst.nihon-u.ac.jp/
• [Remarks] 九州大学 光物性研究室（佐藤研究室）
  • URL: https://ocmp.phys.kyushu-u.ac.jp/
• [Remarks] 慶應義塾大学 安藤研究室
  • URL: http://www.ando.appi.keio.ac.jp/