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Universal growth of functional oxide thin films on van der Waals 2D atomic layered material and their device application

Research Project

Project/Area Number 22K18972
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 29:Applied condensed matter physics and related fields
Research InstitutionOsaka University

Principal Investigator

Tanaka Hidekazu  大阪大学, 産業科学研究所, 教授 (80294130)

Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2022: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Keywords遷移金属酸化物 / 2次元層状物質 / 六方晶窒化ホウ素 / 金属-絶縁体相転移 / 酸化バナジウム / 薄膜結晶成長 / パルスレーザ蒸着法
Outline of Research at the Start

遷移金属酸化物は金属-絶縁体相転移、強磁性、超伝導性など多彩な物性を示し、種々の新奇デバイス応用が期待されている。その表面に非常に弱いファンデルワールス結合のみ存在する2次元層状物質は、結晶構造・格子定数の違いによらず薄膜結晶成長が可能となる【ユニバーサル基板】となりうることを実証し、フレキシブルデバイス応用の可能性を示す。具体的には、六方晶窒化ホウ素上へのパルスレーザ蒸着法による遷移金属薄膜結晶の成長と物性評価、透過型電子顕微鏡による断面界面格子像の観察、第一原理計算による界面電子状態のシミュレーション、フレキシブルデバイス材料としてのデモンストレーションを行う。

Outline of Final Research Achievements

The growth of functional oxide thin films on two-dimensional layered materials with van der Waals interactions can open their possibility of broadening the device applications. We report the growth of VO2, Fe3O4, NdNiO3 thin films on hexagonal boron nitride (hBN) flakes, and realization of good metal-insulator
transition property of these thin films. Our results can offer 【universal substrate】on which various kind of functional oxides could be crystalized beyond lattice mismatch.

Academic Significance and Societal Importance of the Research Achievements

本研究では、hBNフレーク上で3種類の異なる酸化物材料の薄膜成長とスイッチング特性評価からhBNのユニバーサル基板としての検討を行い、さらに転写によるフレキシブル素子展開の可能性を示した。遷移金属酸化物は金属-絶縁体相転移、強磁性、強誘電性、超伝導性など多彩な物性を示し、種々のデバイス応用が期待されている。2 次元層状物質の表面は、非常に束縛が弱く、異種物質の結晶構造・格子定数の違いによらず良質な結晶成長が可能となる新規合成場となり、異種物質の一層の高機能物性を引き出せると期待され、また2次元層状物質の特性より、その複合材料も新規なフレキシブルエレクトロニクス材料としての展開が期待される。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (10 results)

All 2023 2022 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (7 results) (of which Int'l Joint Research: 5 results,  Invited: 4 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Step electrical switching in VO<sub>2</sub> on hexagonal boron nitride using confined individual metallic domains2023

    • Author(s)
      Genchi Shingo、Nakaharai Shu、Iwasaki Takuya、Watanabe Kenji、Taniguchi Takashi、Wakayama Yutaka、Hattori Azusa N.、Tanaka Hidekazu
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 62 Issue: SG Pages: SG1008-SG1008

    • DOI

      10.35848/1347-4065/acb65b

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] Heterostructuring functional oxides and two-dimensional material toward transferable electronics2023

    • Author(s)
      Hidekazu Tanaka
    • Organizer
      the 13th International Conference on Advanced Materials and Devices (ICAMD2023)(
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Determining the in-plane crystal arrangement of VO2 film on CVD-grown hBN sheet using transmission electron microscopy2023

    • Author(s)
      Boyuan Yu, Shingo Genchi, Haobo Li Azusa N. Hattori1, Satoru Fukamachi, Hiroki Ago, Hidekazu Tanaka
    • Organizer
      2023年 第85回応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 単結晶hBNフレーク上に作製したVO2の電流誘起抵抗スイッチングにおけるフレーク境界の効果2023

    • Author(s)
      冨田 雄揮、中払 周、若山 裕、渡邉 賢治、谷口 尚、李 好博、服部 梓、田中 秀和
    • Organizer
      2023年 第85回応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Nano/micro-scale phase change electronics using functional oxides/2D material heterostructures2022

    • Author(s)
      Hidekazu Tanaka
    • Organizer
      35th International Microprocesses and Nanotechnology Conference(MNC 2022,)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Step-like electric current switching in VO2/hBN device using individual metallic domains2022

    • Author(s)
      Shingo Genchi, Hidekazu Tanaka
    • Organizer
      35th International Microprocesses and Nanotechnology Conference(MNC 2022,)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] New memory technologies2022

    • Author(s)
      Hidekazu Tanaka
    • Organizer
      11th imec Handai International Symposium
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Functional oxide thin films grown on two-dimensional material toward transferable electronics2022

    • Author(s)
      Hidekazu Tanaka
    • Organizer
      Europeam Materials Research Society
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Book] 生産と技術2022

    • Author(s)
      玄地真悟、田中秀和
    • Total Pages
      4
    • Publisher
      大阪大学出版会
    • Related Report
      2022 Research-status Report
  • [Remarks]

    • URL

      https://www.sanken.osaka-u.ac.jp/labs/bis/

    • Related Report
      2022 Research-status Report

URL: 

Published: 2022-07-05   Modified: 2025-01-30  

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