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Development of high temperature a scanning Hall probe microscope incorporating a Hall probe fabricated using gallium nitride heterostructures

Research Project

Project/Area Number 19360139
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Electronic materials/Electric materials
Research InstitutionTokyo Institute of Technology

Principal Investigator

SANDHU Adarsh  Tokyo Institute of Technology, 量子ナノエレクトロニクス研究センター, 准教授 (80276774)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000)
Fiscal Year 2008: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Fiscal Year 2007: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
Keywords磁性 / 走査プローブ顕微鏡 / 磁区 / スピンエレクトロニクス / 磁気記録 / 走査型ホールプローブ顕微鏡 / 強磁性体 / AlGaN / GaN / 2次元電子ガスヘテロ接合 / 磁気記録媒体
Research Abstract

高温における強磁性体の磁区構造の観察を目的とし、高温走査型ホールプローブ顕微鏡(High Temperature Scanning Hall Probe Microscopy, HT-SHPM)用プローブを作製した。高温観測のためのプローブにAl 組成比、Siドープの有無など構造の異なるAlGaN/GaNの温度特性を調べ、感磁部の大きさが2μm×2μmであるホールプローブを作製した。作製したプローブの電気特性を評価し、ホール係数は25℃で0.0077Ω/G、400℃においては0.0046Ω/Gという結果を得た。また、HT-SHPMを用いて100℃以上における強磁性体ガーネット薄膜の磁区観察、外部磁界印加時の磁区観察に成功した。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (6 results)

All 2008 2007

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (3 results)

  • [Journal Article] Contact mode scanning Hall probe microscopy2008

    • Author(s)
      T.Ohashi, H. Osawa, A. Sandhu
    • Journal Title

      IEEE Transactions on Magnetics 44

      Pages: 3252-3254

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Contact mode scanning Hall probe microscopy2008

    • Author(s)
      T. Ohashi, H. Osawa, A. Sandhu
    • Journal Title

      IEEE Transactions on Magnetics 44

      Pages: 3252-3254

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High Temperature Scanning Hall Probe Microscopy (HT-SHPM) using AlGaN/GaN 2DEG micro Hall Probes2007

    • Author(s)
      Z. Primadani, H. Osawa and A. Sandhu
    • Journal Title

      J. Appl. Phys 101

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Presentation] Novel contact mode scanning Hall probe microscopy2008

    • Author(s)
      T.Ohashi, H. Osawa, A. Sandhu
    • Organizer
      International Magnetics Conference 2008
    • Place of Presentation
      Madrid, Spain
    • Year and Date
      2008-05-05
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] AlGaN/GaN系ホール・プローブを用いた高温用走査型ホール・プローブ顕微鏡(HT-SHPM)の開発2007

    • Author(s)
      大澤洋貴、プリマダニザキ、サンドゥーアダルシュ
    • Organizer
      春季第54回応用物理学関係連合講演会
    • Year and Date
      2007-03-29
    • Related Report
      2008 Final Research Report
  • [Presentation] High Temperature Scanning Hall Probe Microscopy (HT-SHPM) using AlGaN/GaN2DEG micro Hall Probes2007

    • Author(s)
      Z. Primadani, H. Osawa and A. Sandhu
    • Organizer
      10th Joint MMM/Intermag Conference, FH-14
    • Place of Presentation
      Baltimore, Maryland
    • Year and Date
      2007-01-08
    • Related Report
      2008 Final Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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