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2011 Fiscal Year Annual Research Report

スピンゼーベック効果と熱流-スピン相互利用の系統的研究

Research Project

Project/Area Number 21244058
Research InstitutionTohoku University

Principal Investigator

齊藤 英治  東北大学, 金属材料研究所, 教授 (80338251)

Co-Investigator(Kenkyū-buntansha) 藤川 安仁  東北大学, 金属材料研究所, 准教授 (70312642)
家田 淳一  独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 研究員 (20463797)
Keywordsスピンゼーベック効果 / スピントロニクス / スピン流 / 熱電効果
Research Abstract

前年度までに行った研究により、スピンゼーベック効果によって生成されるスピン流の起源は、磁性体中の局在スピン(マグノン)と金属薄膜中の伝導電子との間に誘起される熱的非平衡性であることを見出している。本年度は、この原理を応用することで、磁性体に音波(縦波バルク音波や表面弾性波)を直接注入することでもスピンゼーベック効果を励起可能であることを実験・理論の両面から明らかにした。これは磁性体中のマグノン-フォノン相互作用と界面スピン混成コンダクタンスに基づくものであり、様々な試料構造においてこの相互作用を系統的に調べることで、これまで未解明だった強磁性金属中の温度勾配誘起スピン圧の長距離性の微視的起源を明らかにした。
また、応用に向けた研究として、スピンゼーベック効果を用いて効果的に熱から電圧やスピン圧を取り出すための試料構造・素子作製プロセスの探索を行った。その結果、塗布技術を利用した全薄膜構造におけるスピンゼーベック効果の観測やアモルファス基板上への高品質磁性絶縁体/金属薄膜複合構造試料の作製、金属薄膜層の複合サーモパイル構造化によるスピンゼーベック信号の増大効果の観測などを実現した。スピンゼーベック効果を用いた熱電発電は、製造プロセスの簡便さや材料コストの面で従来型のゼーベック効果を用いた熱電技術よりも有利であり、本研究で開拓した基盤技術を発展させることにより、全く新しい物理原理によって駆動される熱電発電を実現可能である。

  • Research Products

    (58 results)

All 2012 2011 Other

All Journal Article (28 results) (of which Peer Reviewed: 28 results) Presentation (23 results) Book (1 results) Remarks (1 results) Patent(Industrial Property Rights) (5 results)

  • [Journal Article] All-oxide system for spin pumping2012

    • Author(s)
      Z.Qiu, Y.kajiwara, K.Ando, Y.Fujikawa, K.Uchida, T.Tashiro, K.Harii, T.Yoshino, E.Saitoh
    • Journal Title

      Applied Physics Letters

      Volume: 100 Pages: 022402_1-022402_3

    • DOI

      DOI:10.1063/1.3675463

    • Peer Reviewed
  • [Journal Article] Electroresistance effect in gold thin film induced by ionic liquid gated electric double layer2012

    • Author(s)
      H.Nakayama, J.Ye, T.Ohtani, Y.Fujikawa, K.Ando, Y.Iwasa, E.Saitoh
    • Journal Title

      Applied Physics Express

      Volume: 5 Pages: 023002_1-023002_3

    • DOI

      DOI:10.1143/APEX.5.023002

    • Peer Reviewed
  • [Journal Article] Observation of inverse spin-Hall effect in silicon2012

    • Author(s)
      K.Ando, E.Saitoh
    • Journal Title

      Nature Communications

      Volume: 3 Pages: 629_1-629_6

    • DOI

      DOI:10.1038/ncomms1640

    • Peer Reviewed
  • [Journal Article] Scaling fit of spin pumping in various ferromagnetic materials2012

    • Author(s)
      T.Yoshino, K.Ando, Y.Kajiwara, H.Nakayama, E.Saitoh
    • Journal Title

      Journal of Applied Physics

      Volume: 111 Pages: 07C502_1-07C502_3

    • DOI

      DOI:10.1063/1.3670462

    • Peer Reviewed
  • [Journal Article] Electrical determination of spin mixing conductance at metal/insulator interface using inverse spin Hall effect2012

    • Author(s)
      R.Takahashi, R.Iguchi, K.Ando, H.Nakayama, T.Yoshino, E.Saitoh
    • Journal Title

      Journal of Applied Physics

      Volume: 111 Pages: 07C307_1-07C307_3

    • DOI

      DOI:10.1063/1.3673429

    • Peer Reviewed
  • [Journal Article] Acoustic spin pumping : Direct generation of spin currents from sound waves in Pt/Y3Fe5O12 hybrid structures2012

    • Author(s)
      K.Uchida, H.Adachi, T.An, H.Nakayama, M.Toda, B.Hillebrands, S.Maekawa, E.Saitoh
    • Journal Title

      Journal of Applied Physics

      Volume: 111 Pages: 053903_1-053903_3

    • DOI

      DOI:10.1063/1.3688332

    • Peer Reviewed
  • [Journal Article] Thermal artifact on the spin Seebeck effect in metallic thin films deposited on MgO substrates2012

    • Author(s)
      S.Bosu. Y.Sakuraba, K.Uchida, K.Saito, W.Kobayashi, E.Saitoh, K.Takanashi
    • Journal Title

      Journal of Applied Physics

      Volume: 111 Pages: 07B106_1-07B106-3

    • DOI

      DOI:10.1063/1.3677824

    • Peer Reviewed
  • [Journal Article] Spin pumping in a ferromagnetic/nonmagnetic/spin-sink trilayer film : spin current termination2012

    • Author(s)
      K.Harii, Z.Qiu, T.Iwashita, Y.Kajiwara, K.Uchida, K.Ando, T.An, Y.Fujikawa, E.Saitoh
    • Journal Title

      Key Engineering Materials

      Volume: 508 Pages: 266-270

    • DOI

      DOI:10.4028/www.scientific.net/KEM.508.266

    • Peer Reviewed
  • [Journal Article] Suppression of spin pumping in the presence of thin titanium interlayer2012

    • Author(s)
      H.Nakayama, T.Tashiro, R.Takahashi, Y.Kajiwara, T.Ohtani, K.Ando, R.Iguchi, K.Uchida, T.Yoshino, E.Saitoh
    • Journal Title

      Key Engineering Materials

      Volume: 508 Pages: 347-352

    • DOI

      DOI:10.4028/www.scientific.net/KEM.508.347

    • Peer Reviewed
  • [Journal Article] Electrically tunable spin injector free from the impedance mismatch problem2011

    • Author(s)
      K. Ando, S. Takahashi, J. Ieda, H. Kurebayashi, T. Trypiniotis, C. H. W. Barnes, S. Maekawa, E. Saitoh
    • Journal Title

      Nature Materials

      Volume: 10 Pages: 655-659

    • Peer Reviewed
  • [Journal Article] Universality of the spin pumping in metallic bilayer Films2011

    • Author(s)
      T Yoshino, K Ando, K Harii, H Nakayama, Y Kajiwara, E Saitoh
    • Journal Title

      Applied Physics Letters

      Volume: 98 Pages: 132503_1-132503_3

    • DOI

      DOI:10.1063/1.3571556

    • Peer Reviewed
  • [Journal Article] Spin Pumping Efficiency from Half Metallic Co2MnSi2011

    • Author(s)
      H.Chudo, K.Ando, K.Saito, S.Okayasu, R.Haruki, Y.Sakuraba, H.Yasuoka, K.Takanashi, E.Saitoh
    • Journal Title

      Journal of Applied Physics

      Volume: 464 Pages: 073915_1-073915_4

    • DOI

      DOI:10.1063/1.3556433

    • Peer Reviewed
  • [Journal Article] Inverse spin-Hall effect induced by spin pumping in metallic system2011

    • Author(s)
      K.Ando, S.Takahashi, J.Ieda, Y.Kajiwara, H.Nakayama, T.Yoshino, K.Harii, Y.Fujikawa, M.Matsuo, S.Maekawa, E.Saitoh
    • Journal Title

      Journal of Applied Physics

      Volume: 109 Pages: 103913_1-103913_11

    • DOI

      DOI:10.1063/1.3587173

    • Peer Reviewed
  • [Journal Article] Spin Pumping by Parametrically Excited Exchange Magnons2011

    • Author(s)
      C.W.Sandweg, Y.Kajiwara, A.V.Chumak, A.A.Serga, V.I.Vasyuchka, M.B.Jungfleisch, E.Saitoh, B.Hillebrands
    • Journal Title

      Physical Review Letters

      Volume: 106 Pages: 216601_1-216601_4

    • DOI

      DOI:10.1103/PhysRevLett.106.216601

    • Peer Reviewed
  • [Journal Article] Detection of spin-wave spin current in a magnetic insulator2011

    • Author(s)
      Y.Kajiwara, S.Takahashi, S.Maekawa, E.Saitoh
    • Journal Title

      IEEE Transaction on Magnetics

      Volume: 47 Pages: 1591-1594

    • DOI

      DOI:10.1109/TMAG.2011.2118747

    • Peer Reviewed
  • [Journal Article] Spin current depolarization under high electric fields in undoped InGaAs2011

    • Author(s)
      N.Okamoto, H.Kurebayashi, K.Harii, Y.Kajiwara, H.Beere, I.Farrer, T.Trypiniotis, K.Ando, D.A.Ritchie, C.H.W.Barnes, E.Saitoh
    • Journal Title

      Applied Physics Letters

      Volume: 98 Pages: 242104_1-242104_3

    • DOI

      DOI:10.1063/1.3599599

    • Peer Reviewed
  • [Journal Article] Spin current generation due to mechanical rotation in the presence of impurity scattering2011

    • Author(s)
      M.Matsuo, J.Ieda, E.Saitoh, S.Maekawa
    • Journal Title

      Applied Physics Letters

      Volume: 98 Pages: 242501_1-242501_3

    • DOI

      DOI:10.1063/1.3597220

    • Peer Reviewed
  • [Journal Article] Frequency Dependence of Spin Pumping in Pt/Y3Fe5O12 Film2011

    • Author(s)
      K.Harii, T.An, Y.Kajiwara, K.Ando, H.Nakayama, T.Yoshino, E.Saitoh
    • Journal Title

      Journal of Applied Physics

      Volume: 109 Pages: 116105_1-116105_3

    • DOI

      DOI:10.1063/1.3594661

    • Peer Reviewed
  • [Journal Article] Spin Seebeck effect in thin films of the Heusler compound Co2MnSi2011

    • Author(s)
      S.Bosu, Y.Sakuraba, K.Uchida, K.Saito, T.Ota, E.Saitoh, K.Takanashi
    • Journal Title

      Physical Review B

      Volume: 83 Pages: 224401_1-224401_6

    • DOI

      DOI:10.1103/PhysRevB.83.224401

    • Peer Reviewed
  • [Journal Article] Electric detection of the spin-Seebeck effect in magnetic insulator in the presence of interface barrier2011

    • Author(s)
      K.Uchida, T.Ota, Y.Kajiwara, H.Umezawa, H.Kawai, E.Saitoh
    • Journal Title

      Journal of Physics : Conference Series

      Volume: 303 Pages: 012096_1-012096_4

    • DOI

      DOI:10.1088/1742-6596/303/1/012096

    • Peer Reviewed
  • [Journal Article] Spin-dependent inertial force and spin current in accelerating systems2011

    • Author(s)
      M.Matsuo, J.Ieda, E.Saitoh, S.Maekawa
    • Journal Title

      Physical Review B

      Volume: 84 Pages: 104410_1-104410_9

    • DOI

      DOI:10.1103/PhysRevB.84.104410

    • Peer Reviewed
  • [Journal Article] Nonlinear spin pumping induced by parametric excitation2011

    • Author(s)
      K.Ando, T.An, E.Saitoh
    • Journal Title

      Applied Physics Letters

      Volume: 99 Pages: 092510_1-092510_4

    • DOI

      DOI:10.1063/1.3633348

    • Peer Reviewed
  • [Journal Article] Long-range spin Seebeck effect and acoustic spin pumping2011

    • Author(s)
      K.Uchida, H.Adachi, T.An, T.Ota, M.Toda, B.Hillebrands, S.Maekawa, E.Saitoh
    • Journal Title

      Nature Materials

      Volume: 10 Pages: 737-741

    • DOI

      DOI:10.1038/NMAT3099

    • Peer Reviewed
  • [Journal Article] Spin pumping in polycrystalline magnetic insulator/metal Pt films2011

    • Author(s)
      Y.Kajiwara, K.Ando, H.Nakayama, R.Takahashi, E.Saitoh
    • Journal Title

      IEEE Transaction on Magnetics

      Volume: 47 Pages: 2739-2742

    • DOI

      DOI:10.1109/TMAG.2011.2150737

    • Peer Reviewed
  • [Journal Article] Temporal evolution of inverse spin Hall effect voltage in a magnetic insulator-nonmagnetic metal structure2011

    • Author(s)
      M.B.Jungfleisch, A.V.Chumak, V.I.Vasyuchka, A.A.Serga, B.Obry, H.Schultheiss, P.A.Beck, A.D.Karenowska, E.Saitoh, B.Hillebrands
    • Journal Title

      Applied Physics Letters

      Volume: 99 Pages: 182512_1-182512_3

    • DOI

      DOI:10.1063/1.3658398

    • Peer Reviewed
  • [Journal Article] Surface-acoustic-wave-driven spin pumping in Y3Fe5O12/Pt hybrid structures2011

    • Author(s)
      K.Uchida, T.An, Y.Kaiiwara, M.Toda, E.Saitoh
    • Journal Title

      Applied Physics Letters

      Volume: 99 Pages: 212501_1-212501_3

    • DOI

      DOI:10.1063/1.3662931

    • Peer Reviewed
  • [Journal Article] Continuous Generation of Spinmotive Force in a Patterned Ferromagnetic Film2011

    • Author(s)
      Y.Yamane, K.Sasage, T.An, K.Harii, J.Ohe, J.Ieda, S.E.Barnes, E.Saitoh, S.Maekawa
    • Journal Title

      Physical Review Letters

      Volume: 107 Pages: 236602_1-236602_4

    • DOI

      DOI:10.1103/PhysRevLett.107.236602

    • Peer Reviewed
  • [Journal Article] Two-dimensional temperature mapping using spin-Seebeck insulator2011

    • Author(s)
      K.Uchida, A.Kirihara, M.Ishida, R.Takahashi, E.Saitoh
    • Journal Title

      Japanese Journal of Applied Physics (Rapid Communication)

      Volume: 50 Pages: 120211_1-120211_3

    • DOI

      DOI:10.1143/JJAP.50.1202111

    • Peer Reviewed
  • [Presentation] スピン流の熱・音響効果2012

    • Author(s)
      齊藤英治
    • Organizer
      日本物理学会2012年年次大会
    • Place of Presentation
      神戸(招待講演)
    • Year and Date
      2012-03-25
  • [Presentation] Spin pumping and spin Seebeck effect2012

    • Author(s)
      齊藤英治
    • Organizer
      American Physical Society March Meeting 2012
    • Place of Presentation
      Boston(米国)(招待講演)
    • Year and Date
      2012-03-01
  • [Presentation] スピン流の物理と応用2012

    • Author(s)
      齊藤英治
    • Organizer
      金属錯体の固体物性科学最前線-錯体化学と固体物性物理と生物物性の連携新領域創成をめざして-
    • Place of Presentation
      仙台(招待講演)
    • Year and Date
      2012-01-22
  • [Presentation] Spin current generation from heat and magnetic dynamics2012

    • Author(s)
      齊藤英治
    • Organizer
      The 2nd ASRC International Workshop on Magnetic Materials and Nanostructures
    • Place of Presentation
      東海(招待講演)
    • Year and Date
      2012-01-11
  • [Presentation] Spin current generation and utilization2012

    • Author(s)
      齊藤英治
    • Organizer
      Spin Caloric Transport
    • Place of Presentation
      Bad Honnef(ドイツ)(招待講演)
    • Year and Date
      2012-01-05
  • [Presentation] スピン流とスピントロニクス2011

    • Author(s)
      齊藤英治
    • Organizer
      第15回NAIST科学技術セミナー「グリーンデバイステクノロジー」
    • Place of Presentation
      奈良(招待講演)
    • Year and Date
      2011-12-19
  • [Presentation] Spin Current in Metals and Insulators2011

    • Author(s)
      齊藤英治
    • Organizer
      The FIRST-QS2C Workshop on "Emergent Phenomena of Correlated Materials"
    • Place of Presentation
      沖縄(招待講演)
    • Year and Date
      2011-12-13
  • [Presentation] Spin current physics and application2011

    • Author(s)
      齊藤英治
    • Organizer
      The 7th International Conference on Advanced Materials and Devices
    • Place of Presentation
      Jeju(韓国)(招待講演)
    • Year and Date
      2011-12-07
  • [Presentation] Spin current physics and application2011

    • Author(s)
      齊藤英治
    • Organizer
      Joint Polish-Japanese Workshop : Spintronics-from new materials to applications
    • Place of Presentation
      Warsaw(ポーランド)(招待講演)
    • Year and Date
      2011-11-18
  • [Presentation] スピンゼーベック効果2011

    • Author(s)
      齊藤英治
    • Organizer
      応用物理学会スピントロニクス研究会・日本磁気学会スピンエレクトロニクス専門研究会協賛「スピン流と熱効果の新現象」
    • Place of Presentation
      仙台(招待講演)
    • Year and Date
      2011-11-14
  • [Presentation] Spin current generation using heat and magnetic dynamics2011

    • Author(s)
      齊藤英治
    • Organizer
      Magnetism and Magnetic Materials Conference 2011
    • Place of Presentation
      Scottsdale(米国)(招待講演)
    • Year and Date
      2011-10-31
  • [Presentation] 「スピン流」を利用した電子デバイス実現の可能性~非連続的技術を用いた次世代の省エネルギーデバイスの開発に向けて~2011

    • Author(s)
      齊藤英治
    • Organizer
      次世代ものづくり基盤技術産業展-TECH Biz EXPO 2011-
    • Place of Presentation
      名古屋(招待講演)
    • Year and Date
      2011-10-21
  • [Presentation] Spin current generation using heat and magnetic dynamics2011

    • Author(s)
      齊藤英治
    • Organizer
      2011 International Conference on Solid State Devices and Materials
    • Place of Presentation
      名古屋(招待講演)
    • Year and Date
      2011-09-30
  • [Presentation] スピン流の基礎物理2011

    • Author(s)
      齊藤英治
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山(招待講演)
    • Year and Date
      2011-09-21
  • [Presentation] Spin current generation using heat and magnetic dynamics2011

    • Author(s)
      齊藤英治
    • Organizer
      2011 OSU Materials Week
    • Place of Presentation
      Ohio(米国)(招待講演)
    • Year and Date
      2011-09-13
  • [Presentation] Spin Seebeck effect2011

    • Author(s)
      齊藤英治
    • Organizer
      ASPIMATT school on "Advanced spintronic materials and transport phenomena"
    • Place of Presentation
      Diemerstein(ドイツ)(招待講演)
    • Year and Date
      2011-08-25
  • [Presentation] スピン流の物理と応用2011

    • Author(s)
      齊藤英治
    • Organizer
      サイエンスサマー道場
    • Place of Presentation
      長野(招待講演)
    • Year and Date
      2011-08-18
  • [Presentation] スピン流と熱2011

    • Author(s)
      齊藤英治
    • Organizer
      スピン流を用いた新機能デバイスの開発
    • Place of Presentation
      東京(招待講演)
    • Year and Date
      2011-08-11
  • [Presentation] Spin current generation from magnetic dynamics and heat2011

    • Author(s)
      齊藤英治
    • Organizer
      5th International Workshop on Spin Current
    • Place of Presentation
      仙台(招待講演)
    • Year and Date
      2011-07-28
  • [Presentation] Spin current generation from magnetic dynamics and heat2011

    • Author(s)
      齊藤英治
    • Organizer
      JSPS York-Tohoku Research Symposium on "Magnetic Materials and Spintronics"
    • Place of Presentation
      York(英国)(招待講演)
    • Year and Date
      2011-06-28
  • [Presentation] Spin Hall effect and its application2011

    • Author(s)
      齊藤英治
    • Organizer
      International Center for Quantum Materials
    • Place of Presentation
      Beijing(中国)(招待講演)
    • Year and Date
      2011-06-21
  • [Presentation] Spin Seebeck effect (experiment)2011

    • Author(s)
      齊藤英治
    • Organizer
      Spin Caloritronics III
    • Place of Presentation
      Leiden(オランダ)(招待講演)
    • Year and Date
      2011-05-10
  • [Presentation] Spin pumping and spin Seebeck effects in insulators and metals2011

    • Author(s)
      齊藤英治
    • Organizer
      2011 Materials Research Society Spring Meeting
    • Place of Presentation
      San Francisco(米国)(招待講演)
    • Year and Date
      2011-04-28
  • [Book] 熱電変換技術の基礎と応用-クリーンなエネルギー社会をめざして-2011

    • Author(s)
      齊藤英治、内田健一
    • Total Pages
      13-23
    • Publisher
      シーエムシー出版
  • [Remarks]

    • URL

      http://saitoh.imr.tohoku.ac.jp/

  • [Patent(Industrial Property Rights)] 熱電変換素子および熱電変換方法2011

    • Inventor(s)
      桐原明宏, 中村泰信, 萬伸一, 内田健一, 齊藤英治
    • Industrial Property Rights Holder
      東北大学・日本電気株式会社
    • Industrial Property Number
      特願、2011-114301
    • Filing Date
      2011-05-23
  • [Patent(Industrial Property Rights)] 熱電変換装置2011

    • Inventor(s)
      桐原明宏, 遠藤浩幸, 眞子隆志, 内田健一, 齊藤英治
    • Industrial Property Rights Holder
      東北大学・日本電気株式会社
    • Industrial Property Number
      特願、2011-129308
    • Filing Date
      2011-06-09
  • [Patent(Industrial Property Rights)] 磁性体素子用の積層体及びこの積層体を備えた熱電変換素子並びにその製造方法2011

    • Inventor(s)
      桐原明宏, 石田真彦, 眞子隆志, 内田健一, 齊藤英治
    • Industrial Property Rights Holder
      東北大学・日本電気株式会社
    • Industrial Property Number
      特願、2011-156618
    • Filing Date
      2011-07-15
  • [Patent(Industrial Property Rights)] 位置検出装置2011

    • Inventor(s)
      桐原明宏, 石田真彦, 中村泰信, 内田健一, 齊藤英治
    • Industrial Property Rights Holder
      東北大学・日本電気株式会社
    • Industrial Property Number
      特願、2011-173785
    • Filing Date
      2011-08-09
  • [Patent(Industrial Property Rights)] 位置検出装置2011

    • Inventor(s)
      桐原明宏, 石田真彦, 内田健一, 齊藤英治
    • Industrial Property Rights Holder
      東北大学・日本電気株式会社
    • Industrial Property Number
      特願、2011-173916
    • Filing Date
      2011-08-09

URL: 

Published: 2013-06-26  

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