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Search for new superconducting oxides consisting of face-shared oxygen octahedra

Research Project

Project/Area Number 25610091
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Condensed matter physics II
Research InstitutionNagoya University

Principal Investigator

TERASAKI Ichiro  名古屋大学, 理学(系)研究科(研究院), 教授 (30227508)

Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords強相関電子系 / 超電導材料 / スピン液体
Outline of Final Research Achievements

The purpose of the present study was to search for new superconductors based on new and unknown mechanisms by measuring various fundamental properties of complex oxides consisting of face-shared oxygen octahedra network. The materials investigated were Ba2Ru4O10, BaIrO3, Ba3MRu2O9, together with reference materials of CaRuO3 and NdCrTiO5. Unfortunately, we failed in finding new superconductors, but have succeeded in understanding the electronic phase transitions in Ba3Ru4O10 and BaIrO3 by starting from the face-shared structure. We have further found a novel spin liquid state in Ba3ZnRu2O9, where the 5d spins in the Ru dimer form a spin-singlet without long range magnetic order. This could be a good playground for a new superconductor when the carrier-doping is successful.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (17 results)

All 2015 2014 2013 Other

All Journal Article (4 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results,  Acknowledgement Compliant: 2 results) Presentation (12 results) (of which Invited: 4 results) Remarks (1 results)

  • [Journal Article] Non-uniform Magnetic System Driven by Non-magnetic Ion Substitution in CaRu1−xScxO3: Two-Component Analysis2015

    • Author(s)
      T. D. Yamamoto, R. Okazaki, H. Taniguchi, and I. Terasaki
    • Journal Title

      J. Phys. Soc. Jpn

      Volume: 84 Issue: 1 Pages: 014708-014708

    • DOI

      10.7566/jpsj.84.014708

    • NAID

      210000133410

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Anomalous magnetic order in the magnetoelectric oxide NdCrTiO5 revealed by impurity effects2015

    • Author(s)
      S. Kori, T. Okamura, R. Okazaki, I. Terasaki, and Y. Yasui
    • Journal Title

      Phys. Rev. B

      Volume: 91 Issue: 14

    • DOI

      10.1103/physrevb.91.144403

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] X-ray crystal structure analysis and the Ru valence of Ba4Ru3O10 single crystals2013

    • Author(s)
      T. Igarashi, Y. Nogami, Y. Klein, G. Rousse, R. Okazaki, H. Taniguchi, Y. Yasui and I. Terasaki
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 82 Issue: 10 Pages: 104603-104603

    • DOI

      10.7566/jpsj.82.104603

    • NAID

      210000132784

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] 新しくて面白い4d/5d酸化物2013

    • Author(s)
      寺崎一郎、岡崎竜二
    • Journal Title

      セラミックス

      Volume: 48 Pages: 430-435

    • Related Report
      2013 Research-status Report
  • [Presentation] CaRu1-xScxO3における磁性と輸送特性の相関2015

    • Author(s)
      山本貴史,岡崎竜二,谷口博基,寺崎一郎
    • Organizer
      日本物理学会 第70回年次大会
    • Place of Presentation
      早稲田大学(東京)
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] ダイマー・トライマー構造を持つ系の電荷秩序2014

    • Author(s)
      寺崎一郎
    • Organizer
      電子誘電体研究会「電荷とスピンが織りなす時空間マルチスケール揺らぎ」
    • Place of Presentation
      岡山
    • Year and Date
      2014-12-20
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Ba3ZnRu2O9のZnサイト置換効果2014

    • Author(s)
      五十嵐太一,岡崎竜二,谷口博基,寺崎一郎
    • Organizer
      日本物理学会2014年秋季大会
    • Place of Presentation
      中部大学(春日井)
    • Year and Date
      2014-09-07 – 2014-09-10
    • Related Report
      2014 Annual Research Report
  • [Presentation] BaIrO3単結晶の光学伝導度2014

    • Author(s)
      伊藤駿,岡崎竜二,谷口博基,寺崎一郎
    • Organizer
      日本物理学会2014年秋季大会
    • Place of Presentation
      中部大学(春日井)
    • Year and Date
      2014-09-07 – 2014-09-10
    • Related Report
      2014 Annual Research Report
  • [Presentation] 常磁性体CaRuO3における非磁性元素置換により発現する強磁性2014

    • Author(s)
      山本貴史,岡崎竜二,谷口博基,寺崎一郎
    • Organizer
      日本物理学会2014年秋季大会
    • Place of Presentation
      中部大学(春日井)
    • Year and Date
      2014-09-07 – 2014-09-10
    • Related Report
      2014 Annual Research Report
  • [Presentation] Low-temperature electronic state of Ba4Ru3O10 investigated by transport, thermodynamic, and x-ray absorption spectroscopy measurements2014

    • Author(s)
      T. Igarashi, R. Okazaki, H. Taniguchi, Y. Yasui, Y. Takahashi, T. Sudayama, J. Okamoto, Y. Yamasaki, H. Nakao, Y. Murakami, I. Terasaki
    • Organizer
      The International Conference on Strongly Correlated Electron Systems 2014
    • Place of Presentation
      Grenoble
    • Year and Date
      2014-08-24 – 2014-08-30
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] トライマー型酸化物絶縁体における電荷自由度2014

    • Author(s)
      岡崎竜二,五十嵐太一,伊藤駿,谷口博基,寺崎一郎
    • Organizer
      東北大学金属材料研究所共同利用・共同研究ワークショップ「多自由度が協奏する分子システムの科学」
    • Place of Presentation
      仙台
    • Year and Date
      2014-07-18 – 2014-07-20
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Unconventional Phase Transitions in Ba4Ru3O10 and BaIrO3: Trimer Molecules of d Electrons in a Crystal2014

    • Author(s)
      I. Terasaki
    • Organizer
      The 5th International Symposium on Structure-Property Relationship in Solid State Materials
    • Place of Presentation
      Qindao
    • Year and Date
      2014-06-22 – 2014-06-27
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] X線吸収分光によるBa4Ru3O10の価数状態2014

    • Author(s)
      五十嵐太一,岡崎竜二,谷口博基,寺崎一郎,安井幸夫,小林賢介,中尾裕則,熊井玲児,村上洋一
    • Organizer
      物構研サイエンスフェスタ2013
    • Place of Presentation
      つくば国際会議場エポカル
    • Related Report
      2013 Research-status Report
  • [Presentation] 三量体構造を有するBaIrO3のCoおよびRhによる置換効果2014

    • Author(s)
      伊藤駿,五十嵐太一,浅井晋一郎,岡崎竜二,谷口博基,寺崎一郎,安井幸夫,小林賢介,中尾裕則,熊井玲児,村上洋一
    • Organizer
      日本物理学会第69回年次大会
    • Place of Presentation
      東海大学
    • Related Report
      2013 Research-status Report
  • [Presentation] 三量体構造を有するBaIrO3のRu置換効果2013

    • Author(s)
      伊藤駿,岡村卓真,五十嵐太一,浅井晋一郎,岡崎竜二,谷口博基,寺崎一郎,安井幸夫,小林賢介,中尾裕則,熊井玲児,村上洋一
    • Organizer
      日本物理学会2013年秋季大会
    • Place of Presentation
      徳島大学
    • Related Report
      2013 Research-status Report
  • [Presentation] トライマー反強磁性絶縁体Ba4Ru3O10の軌道混成と低温の電子状態2013

    • Author(s)
      五十嵐太一,岡崎竜二,谷口博基,寺崎一郎,安井幸夫
    • Organizer
      日本物理学会2013年秋季大会
    • Place of Presentation
      徳島大学
    • Related Report
      2013 Research-status Report
  • [Remarks] トライマー構造を有するルテニウム酸化物Ba4Ru3O10の単結晶X線構造解析

    • URL

      http://vlab-nu.jp/research/130930_Ba4Ru3O10.html

    • Related Report
      2013 Research-status Report

URL: 

Published: 2014-07-25   Modified: 2020-05-15  

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