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Control of valley-spin in atomically thin materials based on higher-order data science

Research Project

Project/Area Number 19K22142
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 30:Applied physics and engineering and related fields
Research InstitutionKyoto University

Principal Investigator

Matsuda Kazunari  京都大学, エネルギー理工学研究所, 教授 (40311435)

Project Period (FY) 2019-06-28 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2021: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2020: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords原子層物質 / バレースピン / バレートロニクス / データー科学 / 高次データー科学
Outline of Research at the Start

近年、計算機科学・統計科学の進展を背景に高次元データーの中から本質的な要因を抽出することができるようになりつつある。物性科学においても計測技術の進展により数多くのデーターが取得できるようになり、その中からいかに本質を抽出するかの視点が重要となっている。そこで、本研究提案の目的は、高次元データーを基にした計算機・統計科学のアプローチを物性科学に積極的に取り込み、学術・応用上重要となる次世代バレートロニクスに求められる、高いバレースピン分極、極めて長いバレースピン分極保持時間、の実現に挑戦することである。

Outline of Final Research Achievements

Recently, the essential physical factors can be extracted from the higher-order data according to development of computational and statistical science. We have investigated the valley-physics by newly approach of solid state physics using higher-order data science. The prediction method of valley-spin polarization could be developed from large amount of spectral data using random-forest algorism toward valley-tronics. Moreover, we have obtained the physical guide for gaining large valley-spin polarization in monolayer semiconductors.

Academic Significance and Societal Importance of the Research Achievements

本研究を通して、次世代バレートロニクスに向けて求められる、バレースピン分極の情報を得る新たな手法を開発するとともに、高いバレースピン分極を得るための指針を得ることができるなど、新たな知見が得られている。それに加えて、物性科学の研究に機械学習に代表される高次元データーによる計算機・統計科学のアプローチが有用であることを示すことができた。今後、本研究で対象とした原子層二次元半導体のみならず、人工ヘテロ構造など新たな系においての研究展開が期待される。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (20 results)

All 2022 2021 2020 2019

All Journal Article (11 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 11 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 5 results,  Invited: 9 results)

  • [Journal Article] Magnon‐Coupled Intralayer Moire Trion in Monolayer Semiconductor-Antiferromagnet Heterostructures2022

    • Author(s)
      Zhang Yan、Kim Heejun、Zhang Wenjin、Watanabe Kenji、Taniguchi Takashi、Gao Yanlin、Maruyama Mina、Okada Susumu、Shinokita Keisuke、Matsuda Kazunari
    • Journal Title

      Advanced Materials

      Volume: - Issue: 18 Pages: 2200301-2200301

    • DOI

      10.1002/adma.202200301

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Radiative lifetime and dynamics of trions in few-layered ReS22021

    • Author(s)
      Wang Xiaofan、Shinokita Keisuke、Matsuda Kazunari
    • Journal Title

      Applied Physics Letters

      Volume: 119 Issue: 11 Pages: 113103-113103

    • DOI

      10.1063/5.0059198

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Intrinsic Electronic Transport Properties and Carrier Densities in PtS and SnSe: Exploration of n+‐Source for 2D Tunnel FETs2021

    • Author(s)
      Sato Yuichiro、Nishimura Tomonori、Duanfei Dong、Ueno Keiji、Shinokita Keisuke、Matsuda Kazunari、Nagashio Kosuke
    • Journal Title

      Advanced Electronic Materials

      Volume: 7 Issue: 12 Pages: 2100292-2100292

    • DOI

      10.1002/aelm.202100292

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ultralarge Photoluminescence Enhancement of Monolayer Molybdenum Disulfide by Spontaneous Superacid Nanolayer Formation2021

    • Author(s)
      Yamada Yuki、Zhang Yan、Ikeno Hidekazu、Shinokita Keisuke、Yoshimura Takeshi、Ashida Atsushi、Fujimura Norifumi、Matsuda Kazunari、Kiriya Daisuke
    • Journal Title

      ACS Applied Materials and Interfaces

      Volume: 13 Issue: 21 Pages: 25280-25289

    • DOI

      10.1021/acsami.1c04980

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Resonant Coupling of a Moire Exciton to a Phonon in a WSe2/MoSe2 Heterobilayer2021

    • Author(s)
      Shinokita Keisuke、Miyauchi Yuhei、Watanabe Kenji、Taniguchi Takashi、Matsuda Kazunari
    • Journal Title

      Nano Letters

      Volume: 21 Issue: 14 Pages: 5938-5944

    • DOI

      10.1021/acs.nanolett.1c00733

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Room‐Temperature Chiral Light‐Emitting Diode Based on Strained Monolayer Semiconductors2021

    • Author(s)
      Pu Jiang、Zhang Wenjin、Matsuoka Hirofumi、Kobayashi Yu、Takaguchi Yuhei、Miyata Yasumitsu、Matsuda Kazunari、Miyauchi Yuhei、Takenobu Taishi
    • Journal Title

      Advanced Materials

      Volume: 33 Issue: 36 Pages: 2100601-2100601

    • DOI

      10.1002/adma.202100601

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Controllable Magnetic Proximity Effect and Charge Transfer in 2D Semiconductor and Double‐Layered Perovskite Manganese Oxide van der Waals Heterostructure2020

    • Author(s)
      Zhang Yan、Shinokita Keisuke、Watanabe Kenji、Taniguchi Takashi、Goto Masato、Kan Daisuke、Shimakawa Yuichi、Moritomo Yutaka、Nishihara Taishi、Miyauchi Yuhei、Matsuda Kazunari
    • Journal Title

      Advanced Materials

      Volume: 32 Issue: 50 Pages: 2003501-2003501

    • DOI

      10.1002/adma.202003501

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Magnetic Field Induced Inter‐Valley Trion Dynamics in Monolayer 2D Semiconductor2020

    • Author(s)
      Zhang Yan、Shinokita Keisuke、Watanabe Kenji、Taniguchi Takashi、Miyauchi Yuhei、Matsuda Kazunari
    • Journal Title

      Advanced Functional Materials

      Volume: 31 Issue: 4 Pages: 2006064-2006064

    • DOI

      10.1002/adfm.202006064

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Exciton diffusion in hBN-encapsulated monolayer MoSe22020

    • Author(s)
      Hotta Takato、Higuchi Shohei、Ueda Akihiro、Shinokita Keisuke、Miyauchi Yuhei、Matsuda Kazunari、Ueno Keiji、Taniguchi Takashi、Watanabe Kenji、Kitaura Ryo
    • Journal Title

      Physical Review B

      Volume: 102 Issue: 11 Pages: 115424-115424

    • DOI

      10.1103/physrevb.102.115424

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Machine-Learning Analysis to Predict the Exciton Valley Polarization Landscape of 2D Semiconductors2019

    • Author(s)
      Tanaka Kenya、Hachiya Kengo、Zhang Wenjin、Matsuda Kazunari、Miyauchi Yuhei
    • Journal Title

      ACS Nano

      Volume: 13 Issue: 11 Pages: 12687-12693

    • DOI

      10.1021/acsnano.9b04220

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Experimental Evidence of Anisotropic and Stable Charged Excitons (Trions) in Atomically Thin 2D ReS22019

    • Author(s)
      Wang Xiaofan、Shinokita Keisuke、Miyauchi Yuhei、Cuong Nguyen Thanh、Okada Susumu、Matsuda Kazunari
    • Journal Title

      Advanced Functional Materials

      Volume: 29 Issue: 51 Pages: 1905961-1905961

    • DOI

      10.1002/adfm.201905961

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Optical probing of excitonic states in nano-carbon and anisotropic atomically thin two-dimensional materials2021

    • Author(s)
      Kazunari Matsuda
    • Organizer
      2021 International Chemical Congress of Pacific Basin Societies (PacifiChem. 2021),
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Optical physics of moire excitonic systems in two-dimensional (2D) hetero-structures2021

    • Author(s)
      Kazunari Matsuda
    • Organizer
      The 11th A3 Symposium on Emerging Materials
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Novel optical science in monolayer transition metal dichalcogenide and its heterostructure2021

    • Author(s)
      Kazunari Matsuda
    • Organizer
      The 8th International Workshop on 2D Material
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 日本物理学会2021秋季大会2021

    • Author(s)
      松田一成
    • Organizer
      原子層半導体・ヘテロ構造の光科学とその展開
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] ナノカーボン・二次元材料の光物性の基礎と応用2020

    • Author(s)
      松田一成
    • Organizer
      フラーレン・ナノチューブ・グラフェン学会リレーウエビナー
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 二次元物質と集積構造の光科学2020

    • Author(s)
      松田一成
    • Organizer
      第81回 応用物理学会 秋季学術講演会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] ナノカーボン・原子層物質の光物性の基礎と応用2020

    • Author(s)
      松田一成
    • Organizer
      第59回フラーレン・ナノチューブ・グラフェン学会チュートリアル
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Optical physics in two-dimensional layered materials and its hetero-structures2019

    • Author(s)
      K. Matsuda
    • Organizer
      Material Research Meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Optical physics in nano-carbon and atomically thin two-dimensional materials2019

    • Author(s)
      K. Matsuda
    • Organizer
      The 11th International Conference on Advanced Materials and Devices (ICAMD2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2019-07-04   Modified: 2023-01-30  

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