Novel optical control of electric and spin current in non-magnetic metamaterials

• Project/Area Number: 16K13658
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Applied materials
• Research Institution: Tohoku University
• Principal Investigator: Matsubara Masakazu 東北大学, 理学研究科, 准教授 (50450648)
• Project Period (FY): 2016-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2016: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
• Keywords: メタマテリアル / 非線形光学効果 / 対称性 / スピン流 / 光電流

Outline of Final Research Achievements

In this research, we aimed to explore novel spintronics functionalities based on the creation of functional artificial materials (metamaterials). Specifically, by introducing an artificial three-fold rotational symmetric structure with a size less than the wavelength of light into the nonmagnetic metallic thin film, electric charge current is generated only by light irradiation without applying an external electric field. Its direction can be controlled by 360 degrees in the two-dimensional plane of the nonmagnetic metamaterials. By developing this idea, it is expected to open a new principle for generating and controlling spin current by light.

Research Products

• [Journal Article] Reversible optical switching of antiferromagnetism in TbMnO3 (2016)
  • Author(s): S. Manz, M. Matsubara, Th. Lottermoser, J. Buchi, A. Iyama, T. Kimura, D. Meier, M. Fiebig
  • Journal Title: Nat. Photonics Volume: 10 Issue: 10 Pages: 653-656
  • DOI: 10.1038/nphoton.2016.146
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Switchable electric polarization and ferroelectric domains in a metal-organic-framework (2016)
  • Author(s): P. Jain, A. Stroppa, D. Nabok, A. Marino, A. Rubano, D. Paparo, M. Matsubara, H. Nakotte, M. Fiebig, S.Picozzi, E. S. Choi, A. K. Cheetham, C. Draxl, N. S. Dalal, V. Zapf
  • Journal Title: npj Quantum Materials Volume: 1 Issue: 1
  • DOI: 10.1038/npjquantmats.2016.12
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] サブ波長三角孔を配列したAl薄膜の光誘起横起電力 (2017)
  • Author(s): 岩田健吾, 矢野春菜, 松原正和, 中川勝, 石原照也
  • Organizer: 日本物理学会第72回年次大会
  • Place of Presentation: 大阪大学（大阪府豊中市）
  • Year and Date: 2017-03-17
• [Presentation] スパイラル磁性強誘電体TbMnO3におけるマルチフェロイックドメインの光スイッチング (2017)
  • Author(s): 松原正和, Sebastian Manz, 木村剛, Manfred Fiebig
  • Organizer: 日本物理学会第72回年次大会
  • Place of Presentation: 大阪大学（大阪府豊中市）
  • Year and Date: 2017-03-17
• [Presentation] 3回回転対称メタマテリアルにおける光電流の生成及び制御 (2017)
  • Author(s): 富樫拓也, 辻翔太, 石原照也, 松原正和
  • Organizer: 日本物理学会第72回年次大会
  • Place of Presentation: 大阪大学（大阪府豊中市）
  • Year and Date: 2017-03-17
• [Presentation] 非反転対称磁性体メタマテリアルによる第二高調波発生 (2017)
  • Author(s): 佐藤佳史, 辻翔太, 富樫拓也, 石原照也, 松原正和
  • Organizer: 日本物理学会第72回年次大会
  • Place of Presentation: 大阪大学（大阪府豊中市）
  • Year and Date: 2017-03-17
• [Presentation] 非対称ユニットセルをもつアルミニウムメタマテリアルの光整流効果 (2016)
  • Author(s): 岩田健吾, 矢野春菜, 富樫拓也, 松原正和, 中川勝, 石原照也
  • Organizer: 日本物理学会2016年秋季大会
  • Place of Presentation: 金沢大学（石川県金沢市）
  • Year and Date: 2016-09-13
• [Presentation] 磁性体メタマテリアルにおける非線形光学応答 (2016)
  • Author(s): 辻翔太, 富樫拓也, 石原照也, 松原正和
  • Organizer: 日本物理学会2016年秋季大会
  • Place of Presentation: 金沢大学（石川県金沢市）
  • Year and Date: 2016-09-13
• [Presentation] Second harmonic generation from sub-wavelength triangular hole array in Au thin film (2016)
  • Author(s): M. Saikawa, Y. Hachiya, K. Iwata, M. Matsubara, T Ishihara
  • Organizer: The 7th International Conference on Metamaterials, Photonic Crystals and Plasmonics
  • Place of Presentation: Malaga, Spain
  • Year and Date: 2016-07-25
  • Int'l Joint Research
• [Remarks] ホームページ
  • URL: http://sspp.phys.tohoku.ac.jp/matsubara/