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Subcycle observation of spin-dependent transport under intense mid-infrared electric field transient

Research Project

Project/Area Number 20K22478
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0402:Nano/micro science, applied condensed matter physics, applied physics and engineering, and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Kurihara Takayuki  東京大学, 物性研究所, 助教 (60880151)

Project Period (FY) 2020-09-11 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords中赤外 / パラメトリック増幅 / 光源開発 / スピンホール効果 / テラヘルツ / 光物性 / 高次高調波発生 / 逆スピンホール効果 / 光伝導
Outline of Research at the Start

中赤外光(MIR)やテラヘルツ波(THz)中の強電場によって固体中の電子が強く駆動されると,バンド構造を強く反映したブロッホ振動や高次高調波発生等の非摂動論的な電子ダイナミクスが生じることが知られている。しかしこうした強電場下における電子ダイナミクスにおいて,電子の持つスピン自由度がいかなる影響を及ぼすかについての実験的検証はほとんど進んでいない状況である。そこで本研究ではスピン軌道相互作用の大きい常磁性体(Pt, Biなど)をターゲットとして,コヒーレントな高強度MIR電場下における逆スピンホール効果を測定し,非摂動論的な電子伝導においてスピン自由度が及ぼす影響を明らかにする。

Outline of Final Research Achievements

In this work, we have developed n infrared light source with a very high amplitude- and phase stability that is suitable for future applications in the high-field effect in correlated materials. By employing the Yb:KGW laser as a pump source and parametrically amplifying the carrier-envelope phase locked seed pulses generated by the inline difference frequency mixing, we generated the few-cycle mid infrared transients around 2 um with approximately 2 cycle pulse duration and tens of microjoule output power at 100 kHz. Additionally, we revealed a spin-dependent transport dynamics of a photoexcited carrier by circularly polarized optical pump-terahertz polarization spectroscopy.

Academic Significance and Societal Importance of the Research Achievements

高強度光電場下で生じる様々な非線形電子応答は物質の特性を観察・制御するために欠かせない手法となりつつあり,電子デバイスや材料開発にとって重要な知見を与える。そうしたダイナミクスを非常に感度よく検出するためには光源の安定性が欠かせない。今回確立したレーザー光源は同種の光源としては最高レベルの安定性を持ち,将来的には様々な物質系における非線形応答の精密測定に応用できると考えられる。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (22 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (3 results) Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (12 results) (of which Int'l Joint Research: 2 results) Remarks (2 results)

  • [Int'l Joint Research] コンスタンツ大学(ドイツ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] コンスタンツ大学(ドイツ)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] コンスタンツ大学(ドイツ)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Highly CEP-stable optical parametric amplifier at 2 μm with a few-cycle duration and 100 kHz repetition rate2023

    • Author(s)
      Kurihara Takayuki、Yang Tianqi、Mizuno Tomoya、Kanai Teruto、Itatani Jiro
    • Journal Title

      Optics Express

      Volume: 31 Issue: 7 Pages: 11649-11649

    • DOI

      10.1364/oe.481126

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Observation of terahertz-induced dynamical spin canting in orthoferrite magnon by magnetorefractive probing2023

    • Author(s)
      Kurihara Takayuki、Bamba Motoaki、Watanabe Hiroshi、Nakajima Makoto、Suemoto Tohru
    • Journal Title

      Communications Physics

      Volume: 6 Issue: 1 Pages: 51-51

    • DOI

      10.1038/s42005-023-01167-3

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Passively phase-locked Er:fiber source of single-cycle pulses in the near infrared with electro-optic timing modulation for field-resolved electron control2022

    • Author(s)
      Schoenfeld Christoph、Sulzer Philipp、Brida Daniele、Leitenstorfer Alfred、Kurihara Takayuki
    • Journal Title

      Optics Letters

      Volume: 47 Issue: 14 Pages: 3552-3552

    • DOI

      10.1364/ol.461076

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Magnetic Domain Control of ErFeO3 by Intense Terahertz Free Electron Laser Pulses2021

    • Author(s)
      Nakajima Makoto、Isoyama Goro、Kurihara Takayuki
    • Journal Title

      IEEE Transactions on Plasma Science

      Volume: 49 Issue: 11 Pages: 3344-3350

    • DOI

      10.1109/tps.2021.3112456

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Ultrafast Control of Magnetic Anisotropy by Resonant Excitation of Electrons and Phonons in Sm_0.7_Er_0.3_FeO_3_2021

    • Author(s)
      Fitzky Gabriel、Nakajima Makoto、Koike Yohei、Leitenstorfer Alfred、Kurihara Takayuki
    • Journal Title

      Physical Review Letters

      Volume: 127 Issue: 10 Pages: 107401-107401

    • DOI

      10.1103/physrevlett.127.107401

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] GaAsにおける光誘起異常ホール伝導ダイナミクス(II):光照射中の振動構造の起源2023

    • Author(s)
      藤本知宏, 栗原貴之, 室谷悠太, 神田夏輝, 玉谷知裕, 金昌秀, 秋山英文, 加藤岳生, 松永隆佑
    • Organizer
      日本物理学会2023年春季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] GaAsにおける光誘起異常ホール伝導ダイナミクス(I):逆スピンホール効果のテラヘルツ周波数特性と微視的起源2023

    • Author(s)
      藤本知宏, 栗原貴之, 室谷悠太, 神田夏輝, 玉谷知裕, 金昌秀, 秋山英文, 加藤岳生, 松永隆佑
    • Organizer
      日本物理学会2023年春季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Sm0.7Er0.3FeO3の非共鳴THzパルス励起による強磁性スピン振動の観測2023

    • Author(s)
      丸山慶, 章振亜, 関口文哉, 栗原貴之, 中嶋誠, 立崎武弘, 金光義彦, 廣理英基
    • Organizer
      日本物理学会2023年春季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 2 um帯におけるmixed-plateパルス圧縮2022

    • Author(s)
      栗原貴之, 楊 添淇, 水野 智也, 金井 輝人, 板谷 治郎
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] オルソフェライトにおける高強度テラヘルツ誘起非線形スピン運動の磁気複屈折効果による観測2022

    • Author(s)
      栗原貴之,馬場基彰,渡邊浩,中嶋誠,末元徹
    • Organizer
      日本物理学会2022年秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Yb固体レーザーをベースとしたCEP安定2um帯OPAの開発2022

    • Author(s)
      栗原 貴之,水野 智也,金井 輝人,板谷 治郎
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] 2 um帯におけるCEP安定,高繰り返し,高出力OPAの開発2022

    • Author(s)
      栗原貴之, 楊 添淇, 水野 智也, 金井 輝人, 板谷 治郎
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] Ultrafast Control Of Magnetic Anisotropy By Resonant 4f Electronic And Phonon Excitations In Sm0.7Er0.3FeO32022

    • Author(s)
      Gabriel Fitzky, Alfred Leitenstorfer, Makoto Nakajima, Yohei Koike, and Takayuki Kurihara
    • Organizer
      IRMMW-THz 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 中赤外f-f電子共鳴によるSm0.7Er0.3FeO3のスピン再配列相転移2021

    • Author(s)
      栗原貴之,Gabriel Fitzky,弘田和將,小池遥平,邱紅松,中嶋誠,Alfred Leitenstorfer
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Yb:KGWレーザー高調波による白色光スーパーコンティニューム発生2021

    • Author(s)
      栗原 貴之,楊 添淇,水野 智也,金井 輝人,板谷 治郎
    • Organizer
      レーザー学会学術講演会 第41回年次大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Development and characterization of a high repetition, quasi single cycle near infrared light source with passively stabilized carrier envelope phase and its application to quantum interference in semiconductor electrons2021

    • Author(s)
      Takayuki Kurihara, Christoph Schoenfeld, Daniele Brida, Alfred Leitenstorfer
    • Organizer
      レーザー学会学術講演会 第41回年次大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Manipulation of ferromagnetic domain by the terahertz free electron laser excitation2020

    • Author(s)
      T. Kurihara, M. Nakajima, T. Shimizu, Y. Koike, and G. Isoyama
    • Organizer
      45TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Remarks] 中赤外光パルスによる超高速磁気異方性制御に成功

    • URL

      https://www.issp.u-tokyo.ac.jp/maincontents/news2.html?pid=13727

    • Related Report
      2021 Research-status Report
  • [Remarks] 中赤外光パルスによる超高速磁気異方性制御に成功

    • URL

      https://resou.osaka-u.ac.jp/ja/research/2021/20210902_1

    • Related Report
      2021 Research-status Report

URL: 

Published: 2020-09-29   Modified: 2024-01-30  

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