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グラフェン技術を用いた次世代巨大磁気抵抗スピントロニクスデバイスの開発

Research Project

Project/Area Number 14F04357
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section外国
Research Field Thin film/Surface and interfacial physical properties
Research InstitutionTohoku University

Principal Investigator

吹留 博一  東北大学, 電気通信研究所, 准教授 (10342841)

Co-Investigator(Kenkyū-buntansha) VENUGOPAL GUNASEKARAN  東北大学, 電気通信研究所, 外国人特別研究員
VENUGOPAL Gunasekaran  東北大学, 電気通信研究所, 外国人特別研究員
Project Period (FY) 2014-04-25 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 2016: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2015: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2014: ¥300,000 (Direct Cost: ¥300,000)
Keywordsgraphene / spintronics / グラフェン / スピントロニクス / 磁気デバイス
Outline of Annual Research Achievements

Spintronics is one of the most exciting and challenging areas in nanotechnology, important to both fundamental scientific research and industrial applications. Nowadays, microelectronic devices continue to diminish in size to achieve higher speeds. As this shrinkage occurs, design parameters are impacted in such a way that the materials in current use are pushed to their limits. To keep the rate of device shrinkage and still maintain overall performance goals, the data storage capacity will eventually reach a natural performance limit even with some technical innovations. With the limits of microelectronic miniaturization in sight there has been an enormous drive to innovate radically new materials and technologies in order to match the continued expansion of the world economy and to meet the insatiable demands of the world microprocessor market. This project therefore aims at development of novel Giant Magneto-Resistive (GMR) devices with GMR ratio exceeding by few orders of magnitudes of spintronic materials;
2D materials, such as MoS2 and WSe2 are expected to be promising as good candidates to transfer spin. Therefore,I have stuided these materials. I have successfully fabricated few-layer MoS2 transistors. Furthermore, to acquire detailed information on the device physics of these transistor, I have performed operando soft x-ray spectromicroscopy. As a result, the electronic states were found to be modulated through many-body effects.

Research Progress Status

28年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

28年度が最終年度であるため、記入しない。

Report

(3 results)
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • Research Products

    (4 results)

All 2016 2015 Other

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Acknowledgement Compliant: 2 results) Presentation (1 results) (of which Int'l Joint Research: 1 results) Remarks (1 results)

  • [Journal Article] Observation of nanoscopic charge-transfer region at metal/MoS2 interface2016

    • Author(s)
      R. Suto, G. Venugopal. K. Tashima, N. Nagamura, K. Horiba, M. Suemitsu, M. Oshima, and H. Fukidome
    • Journal Title

      Materials Research Express

      Volume: 3 Issue: 7 Pages: 075004-075004

    • DOI

      10.1088/2053-1591/3/7/075004

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Observation of insulating and metallic-type behavior in Bi2Se3 transistor at room temperature2016

    • Author(s)
      G. Venugopal, M. Suemitsu and H. Fukidome
    • Journal Title

      Nanosystems: Physics, Chemistry, Matematics,

      Volume: 7 Pages: 565-568

    • DOI

      10.17586/2220-8054-2016-7-3-565-568

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Observation of insulating and metallic-type behavior in Bi2Se3 transistor at room temperature2015

    • Author(s)
      G. Venugopal, M. Suemitsu and H. Fukidome
    • Organizer
      NANO 15
    • Place of Presentation
      Coimbatore, India
    • Year and Date
      2015-12-07
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Remarks] 末光・吹留研究室 ホームページ

    • URL

      http://www.suemitsu.riec.tohoku.ac.jp/

    • Related Report
      2014 Annual Research Report

URL: 

Published: 2015-01-22   Modified: 2024-03-26  

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