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Evaluation of bonding nature in Al-based quasicrystals by positron annihilation spectroscopy

Research Project

Project/Area Number 21860021
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Physical properties of metals
Research InstitutionThe University of Tokyo

Principal Investigator

TAKAGIWA Yoshiki  The University of Tokyo, 大学院・新領域創成科学研究科, 助教 (90549594)

Project Period (FY) 2009 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥2,678,000 (Direct Cost: ¥2,060,000、Indirect Cost: ¥618,000)
Fiscal Year 2010: ¥1,274,000 (Direct Cost: ¥980,000、Indirect Cost: ¥294,000)
Fiscal Year 2009: ¥1,404,000 (Direct Cost: ¥1,080,000、Indirect Cost: ¥324,000)
Keywords金属物性 / 格子欠陥 / 環境材料 / 廃熱利用 / 放射線
Research Abstract

Our main goal is to establish a method of evaluation of bonding-nature in Al-based quasicrystals by positron annihilation spectroscopy. Al-based quasicrystals, which possess the pseudogap near the Fermi level, are novel candidates for new thermoelectric materials.
We observed the clear correlation between the positron annihilation rate and electrical conductivity in various Al-based quasicrystals and related materials. The present correlation can be used to discuss the bonding nature in icosahedral clusters of the Al-based QCs. Establishing a method of evaluating the bonding nature of the Al-based QCs is necessary for future designs of material, such as thermoelectric materials.

Report

(3 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • Research Products

    (34 results)

All 2011 2010 Other

All Journal Article (8 results) (of which Peer Reviewed: 8 results) Presentation (25 results) Remarks (1 results)

  • [Journal Article] Thermoelectric properties of narrow-gap intermetallic compound Ga_2Ru : effect of Re substitution for Ru atoms2011

    • Author(s)
      Y.Takagiwa, J.T.Okada, K.Kimura
    • Journal Title

      Journal of Electronic Materials vol.40

      Pages: 1067-1072

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Thermoelectric properties of narrow-gap intermetallic compound Ga_2Ru : effect of Re substitution for Ru atoms2011

    • Author(s)
      Y.Takagiwa, J.T.Okada, K.Kimura
    • Journal Title

      Journal of Electronic Materials

      Volume: (印刷中)(掲載確定)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Composition dependence of thermoelectric properties of binary narrow-gap Ga_2Ru compound2010

    • Author(s)
      Y.Takagiwa, J.T.Okada, K.Kimura
    • Journal Title

      Journal of Alloys and Compounds vol.507

      Pages: 364-369

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Thermoelectric properties of icosahedral Al-Pd-(Mn or Re) quasicrystals : improvement of the ZT value by Ga substitution for Al atoms2010

    • Author(s)
      Y.Takagiwa, T.Kamimura, J.T.Okada, K.Kimura
    • Journal Title

      Journal of Electronic Materials vol.39

      Pages: 1885-1889

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Thermoelectric properties of binary semiconducting intermetallic compounds Al_2Ru and Ga_2Ru synthesized by spark plasma sintering process2010

    • Author(s)
      Y.Takagiwa, Y.Matsubayashi, A.Suzumura, J.T.Okada, K.Kimura
    • Journal Title

      Materials Transactions vol.51

      Pages: 988-993

    • NAID

      10026267773

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Thermoelectric properties of icosahedral Al-Pd-(Mn or Re) quasicrystals : improve ment of the ZT value by Ga substitution for Al atoms2010

    • Author(s)
      Y.Takagiwa, T.Kamimura, J.T.Okada, K.Kimura
    • Journal Title

      Journal of Electronic Materials

      Volume: 51 Pages: 1885-1889

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Composition dependence of thermoelectric properties of binary narrow-gap Ga_2Ru compound2010

    • Author(s)
      Y.Takagiwa, J.T.Okada, K.Kimura
    • Journal Title

      Journal of Alloys and Compounds

      Volume: 507 Pages: 364-369

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thermoelectric properties of binary semiconducting intermetallic compounds Al2Ru and Ga2Ru synthesized by spark plasma sintering process2010

    • Author(s)
      高際良樹, 松林佑華, A.Suzumura, 岡田純平, K.Kimura
    • Journal Title

      Materials Transactions 51(印刷中(掲載確定))

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] 陽電子をプローブとしたAl系準結晶・近似結晶における空孔型格子欠陥の研究2011

    • Author(s)
      高際良樹,北原功一,木村薫,鈴木寛之,金沢育三
    • Organizer
      2011年日本物理学会年次大会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-27
    • Related Report
      2010 Final Research Report
  • [Presentation] Al-Cu-Ru三元系準結晶及び近似結晶の熱電特性2011

    • Author(s)
      北原功一,高際良樹,木村薫
    • Organizer
      2011年日本物理学会年次大会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-27
    • Related Report
      2010 Final Research Report
  • [Presentation] Al_<71>Pd_<20>(Mn_<1-x>Fe_x)_9準結晶の作製と熱電特性2011

    • Author(s)
      斎藤誠,鈴木寛之,金沢育三,高際良樹,木村薫
    • Organizer
      2011年日本物理学会年次大会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-27
    • Related Report
      2010 Final Research Report
  • [Presentation] 陽電子をプローブとしたAl系準結晶・近似結晶における空孔型格子欠陥の研究2011

    • Author(s)
      高際良樹, 北原功一, 木村薫, 鈴木寛之, 金沢育三
    • Organizer
      日本物理学会年次大会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-27
    • Related Report
      2010 Annual Research Report
  • [Presentation] Al-Cu-Ru三元系系準結晶及び近似結晶の熱電特性2011

    • Author(s)
      北原功一, 高際良樹, 木村薫
    • Organizer
      日本物理学会年次大会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-27
    • Related Report
      2010 Annual Research Report
  • [Presentation] Al_<71>Pd_<20>(Mn_<1-x>Fe_x)_9準結晶の作製と熱電特性2011

    • Author(s)
      斎藤誠, 鈴木寛之, 金沢育三, 高際良樹, 木村薫
    • Organizer
      日本物理学会年次大会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-27
    • Related Report
      2010 Annual Research Report
  • [Presentation] AlReSi近似結晶の構造欠陥のSPSによる組織改善と陽電子消滅法による評価2011

    • Author(s)
      山田浩平,鈴木寛之,金沢育三,高際良樹,木村薫
    • Organizer
      2011年日本物理学会年次大会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-26
    • Related Report
      2010 Final Research Report
  • [Presentation] AlReSi近似結晶の構造欠陥のSPSによる組織改善と陽電子消滅法による評価2011

    • Author(s)
      山田浩平, 鈴木寛之, 金沢育三, 高際良樹, 木村薫
    • Organizer
      日本物理学会年次大会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-26
    • Related Report
      2010 Annual Research Report
  • [Presentation] Thermoelectric Properties of Narrow-Gap Intermetallic Al_2Ru and Ga_2Ru Compounds2010

    • Author(s)
      Y.Takagiwa, Y.Matsubayashi, J.T.Okada, K.Kimura
    • Organizer
      MRS-Jシンポジウム
    • Place of Presentation
      横浜波止場会館
    • Year and Date
      2010-12-22
    • Related Report
      2010 Final Research Report
  • [Presentation] Thermoelectric Properties of Narrow-Gap Intermetallic Al_2Ru and Ga_2Ru Compounds2010

    • Author(s)
      Y.Takagiwa, Y.Matsubayashi, J.T.Okada, K.Kimura
    • Organizer
      MRS-Jシンポジウム
    • Place of Presentation
      横浜,波止場会館
    • Year and Date
      2010-12-22
    • Related Report
      2010 Annual Research Report
  • [Presentation] Thermoelectric Properties of Ga_3Ru and In_3Ru2010

    • Author(s)
      Y.Matsubayashi, Y.Takagiwa, K.Kimura
    • Organizer
      MRS-Jシンポジウム
    • Place of Presentation
      横浜,横浜情報文化センター
    • Year and Date
      2010-12-21
    • Related Report
      2010 Annual Research Report
  • [Presentation] Ga_3Ru及びIn_3Ruの熱電特性2010

    • Author(s)
      松林佑華, 高際良樹, 木村薫
    • Organizer
      日本金属学会秋期大会
    • Place of Presentation
      北海道大学
    • Year and Date
      2010-09-27
    • Related Report
      2010 Annual Research Report
  • [Presentation] 狭ギャップ半導体化合物Ga_2Ruの熱電特性:組成依存性及びホールドープ効果2010

    • Author(s)
      高際良樹,深道誉之,岡田純平,木村薫
    • Organizer
      第7回日本熱電学会学術講演会
    • Place of Presentation
      東京大学
    • Year and Date
      2010-08-20
    • Related Report
      2010 Annual Research Report 2010 Final Research Report
  • [Presentation] Self-Compensation and Bonding Conversion in B-based and Al based-Icosahedral Clusters Solids2010

    • Author(s)
      K.Kimura, H.Hyodo, Y.Takagiwa, K.Kirihara, K.Soga, K.Kato, M.Takata
    • Organizer
      11^<th> International Conference on Quasicrystals
    • Place of Presentation
      北海道大学
    • Year and Date
      2010-06-17
    • Related Report
      2010 Annual Research Report 2010 Final Research Report
  • [Presentation] Possibility of Evaluation of Bonding Nature of Al-based Icosahedral Quasicrystals using Positron Annihilation Rates2010

    • Author(s)
      Y.Takagiwa, K.Kimura, I.Kanazawa
    • Organizer
      11^<th> International Conference on Quasicrystals
    • Place of Presentation
      北海道大学
    • Year and Date
      2010-06-15
    • Related Report
      2010 Final Research Report
  • [Presentation] Structural Vacancies in 1/1-AlReSi Approximant Crystals Probed by Positron Annihilation Methods2010

    • Author(s)
      H.Suzuki, M.Saito, H.Kitahata, Y.Matsushita, I.Kanazawa, T.Ohdaira, N.Oshima, R.Suzuki, Y.Takagiwa, K.Kimura
    • Organizer
      11^<th> International Conference on Quasicrystals
    • Place of Presentation
      北海道大学
    • Year and Date
      2010-06-15
    • Related Report
      2010 Annual Research Report 2010 Final Research Report
  • [Presentation] Possibility of Evaluation of Bonding Naturc of Al-based Icosahedral Quasicrystals using Positron Annihilation Rates2010

    • Author(s)
      Y.Takagiwa, K.Kimura, I.Kanazawa
    • Organizer
      11^<th> International conference on Quasicrystals
    • Place of Presentation
      北海道大学
    • Year and Date
      2010-06-15
    • Related Report
      2010 Annual Research Report
  • [Presentation] Thermoelectric properties of narrow-gap intermetallic compound Ga_2Ru : effect of Re substitution for Ru atoms2010

    • Author(s)
      Y.Takagiwa, J.T.Okada, K.Kimura
    • Organizer
      International Conference on Thermoelectrics 2010
    • Place of Presentation
      上海
    • Year and Date
      2010-06-01
    • Related Report
      2010 Final Research Report
  • [Presentation] Thermoelectric properties of narrow gap intermetallic compound Ga_2Ru : effect of Re substitution for Ru atoms2010

    • Author(s)
      Y.Takagiwa, Y.Matsubayashi, J.T.Okada, K.Kimura
    • Organizer
      International Conference on Thermoelectrics 2010
    • Place of Presentation
      上海,中国
    • Year and Date
      2010-06-01
    • Related Report
      2010 Annual Research Report
  • [Presentation] 放電プラズマ焼結法を用いた狭ギャップ金属間化合物の作製と熱電物性2010

    • Author(s)
      高際良樹,松林佑華,岡田純平,木村薫
    • Organizer
      2010年日本金属学会春期大会
    • Place of Presentation
      筑波大学
    • Year and Date
      2010-03-30
    • Related Report
      2010 Final Research Report
  • [Presentation] 放電プラズマ焼結法を用いた狭ギャップ金属間化合物の作製と熱電物性2010

    • Author(s)
      高際良樹, 松林佑華, 岡田純平, 木村薫
    • Organizer
      日本金属学会春期大会
    • Place of Presentation
      筑波大学
    • Year and Date
      2010-03-30
    • Related Report
      2009 Annual Research Report
  • [Presentation] Al-Pd-Mn準結晶のPdのNi置換における熱電性能2010

    • Author(s)
      筒井正機,鹿川和哉,鈴木寛之,金沢育三,高際良樹,木村薫
    • Organizer
      2010年日本物理学会年次大会
    • Place of Presentation
      岡山大学
    • Year and Date
      2010-03-21
    • Related Report
      2010 Final Research Report
  • [Presentation] Al-Pd-Mn準結晶のPdのNi置換における熱電性能2010

    • Author(s)
      筒井正機, 鹿川和哉, 鈴木寛之, 金沢育三, 高際良樹, 木村薫
    • Organizer
      日本物理学会年次大会
    • Place of Presentation
      岡山大学
    • Year and Date
      2010-03-21
    • Related Report
      2009 Annual Research Report
  • [Presentation] アルミ系準結晶及び派生結晶の熱電物性2010

    • Author(s)
      高際良樹
    • Organizer
      化合物新磁性材料研究会
    • Place of Presentation
      東京大学物性研究所
    • Year and Date
      2010-02-24
    • Related Report
      2010 Final Research Report 2009 Annual Research Report
  • [Presentation] Ga_3Ru及びIn_3Ruの熱電特性2010

    • Author(s)
      松林佑華,高際良樹,木村薫
    • Organizer
      第7回日本熱電学会学術講演会
    • Place of Presentation
      東京大学
    • Related Report
      2010 Annual Research Report 2010 Final Research Report
  • [Remarks] ホームページ等

    • URL

      http://www.phys.mm.t.u-tokyo.ac.jp/

    • Related Report
      2010 Final Research Report

URL: 

Published: 2009-04-01   Modified: 2016-04-21  

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