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Subnanoscale analysis of the ordering of strongly correlated electrons by very-low-temperature aberration-corrected STEM

Research Project

Project/Area Number 23710115
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Nanostructural science
Research InstitutionNational Institute for Materials Science

Principal Investigator

NAGAI Takuro  独立行政法人物質・材料研究機構, 電子顕微鏡ステーション, 主任エンジニア (90531567)

Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords強相関電子 / 磁気バブル / 軌道秩序 / ビスマス系高温超伝導体 / 透過型電顕 / 収差補正 / 結晶粒界 / 積層不整 / 走査透過型電子顕微鏡法 / 透過型電子顕微鏡 / 強相関電子系 / ローレンツ顕微鏡法
Research Abstract

We performed subnanoscale analysis of crystal structures of strongly correlated electron materials and the ordering of the electrons by transmission electron microscopy (TEM). We found formation of nanoscale magnetic bubbles in the orbital-ordered ferromagnetic insulating phase of perovskite-type manganite La1-xSrxMnO3 (x = 1/8) by Lorentz microscopy. In addition, the structures of grain boundaries and defects were revealed for Bi-based high-Tc superconductor (Bi,Pb)2Sr2Ca2Cu3O10+d (Bi-2223) by analysis of the atomic columns using low-voltage aberration-corrected scanning TEM.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (11 results)

All 2014 2013 2012 2011

All Journal Article (3 results) (of which Peer Reviewed: 2 results) Presentation (8 results)

  • [Journal Article] Direct observation of atomic columns in a Bi-2223 polycrystal by aberration-corrected STEM using a low accelerating voltage2014

    • Author(s)
      長井拓郎、治田充貴、菊地昌志、張偉珠、竹口雅樹、木本浩司
    • Journal Title

      Physica C

      Volume: 500 Pages: 33-39

    • DOI

      10.1016/j.physc.2014.02.020

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Formation of nanoscale magnetic bubbles in ferromagnetic insulating manganite La7/8Sr1/8MnO3.2012

    • Author(s)
      T. Nagai, M. Nagao, K. Kurashima, T. Asaka, W. Zhang, and K. Kimoto
    • Journal Title

      Applied Physics Letters

      Volume: 101 Issue: 16 Pages: 162401-162401

    • DOI

      10.1063/1.4760266

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] ローレンツ顕微鏡法と電子エネルギー損失分光法による強相関電子系材料の微細構造の観察2011

    • Author(s)
      木本浩司、長井拓郎
    • Journal Title

      日本磁気学会誌まぐね

      Volume: 6巻 Pages: 329-332

    • NAID

      10030284268

    • Related Report
      2013 Final Research Report 2011 Research-status Report
  • [Presentation] 低加速収差補正STEM法によるビスマス系超伝導多結晶材料の単原子コラム分析2014

    • Author(s)
      長井拓郎
    • Organizer
      共用・計測合同シンポジウム2014
    • Place of Presentation
      物質・材料研究機構千現地区(つくば市)
    • Year and Date
      2014-03-14
    • Related Report
      2013 Final Research Report
  • [Presentation] 低加速収差補正STEM法によるビスマス系超伝導多結晶材料の単原子コラム分析2014

    • Author(s)
      長井拓郎、治田充貴、菊地昌志、張偉珠、竹口雅樹、木本浩司
    • Organizer
      共用・計測合同シンポジウム2014
    • Place of Presentation
      物質・材料研究機構千現地区(つくば市)
    • Related Report
      2013 Annual Research Report
  • [Presentation] 低加速収差補正STEMによるビスマス系高温超伝導体の観察2013

    • Author(s)
      長井拓郎
    • Organizer
      日本顕微鏡学会第69回学術講演会
    • Place of Presentation
      ホテル阪急エキスポパーク(吹田市)
    • Year and Date
      2013-05-21
    • Related Report
      2013 Final Research Report
  • [Presentation] 低加速収差補正STEMによるビスマス系高温超伝導体の観察2013

    • Author(s)
      長井拓郎、治田充貴、菊地昌志、竹口雅樹、木本浩司
    • Organizer
      日本顕微鏡学会第69回学術講演会
    • Place of Presentation
      ホテル阪急エキスポパーク(吹田市)
    • Related Report
      2013 Annual Research Report
  • [Presentation] ローレンツ電顕法による強磁性マンガン酸化物におけるナノスケール磁気バブルの観察2012

    • Author(s)
      長井拓郎
    • Organizer
      日本顕微鏡学会第68回学術講演会
    • Place of Presentation
      つくば国際会議場(つくば市)
    • Year and Date
      2012-05-14
    • Related Report
      2013 Final Research Report
  • [Presentation] ローレンツ電顕法による強磁性マンガン酸化物におけるナノスケール磁気バブルの観察2012

    • Author(s)
      長井拓郎
    • Organizer
      日本顕微鏡学会第68回学術講演会
    • Place of Presentation
      つくば国際会議場(茨城県)
    • Related Report
      2012 Research-status Report
  • [Presentation] ローレンツ電顕法による強磁性ナノワイヤの磁化分布解析2011

    • Author(s)
      長井拓郎
    • Organizer
      日本顕微鏡学会第67回学術講演会
    • Place of Presentation
      福岡国際会議場(福岡市)
    • Year and Date
      2011-05-18
    • Related Report
      2013 Final Research Report
  • [Presentation] ローレンツ電顕法による強磁性ナノワイヤの磁化分布解析2011

    • Author(s)
      長井拓郎
    • Organizer
      日本顕微鏡学会第67回学術講演会
    • Place of Presentation
      福岡国際会議場(福岡県)
    • Related Report
      2011 Research-status Report

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Published: 2011-08-05   Modified: 2019-07-29  

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