• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

幾何学的フラストレート系有機磁性体の合成と量子効果

Research Project

Project/Area Number 20046013
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionOsaka Prefecture University

Principal Investigator

細越 裕子  Osaka Prefecture University, 理学系研究科, 教授 (50290903)

Project Period (FY) 2008 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2009: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2008: ¥2,000,000 (Direct Cost: ¥2,000,000)
Keywords三角格子 / 有機磁性体 / フラストレート / 磁化率 / 結晶構造 / 幾何学的フラストレーション / スピンフラストレーション / 有機ラジカル / ポリラジカル / 静磁化率 / 磁気秩序 / 磁化曲線
Research Abstract

隣接スピン間スピン間で磁気相互作用が競合する幾何学的スピンフラストレーション系においては、スピンの量子揺らぎの効果が大きくなり、スピン液体状態が実現するとされている。スピンの固体状態とも言うべき磁気秩序状態とは全く異なる非秩序状態の実現は、新しいスピン状態としての学術的な興味と、新しい磁気スイッチングデバイスとしての応用への期待がもたれている。スピンの量子揺らぎは、スピン量子数が小さい程、スピン-軌道相互作用が小さいほど大きくなる。本研究においては、C,H,N,Oといった軽元素のみから構成される有機ラジカル磁性体を用いて、S=1/2三角格子反強磁性体の構築および低温物性研究を行うものである。申請者は、独自の有機ポリラジカルアプローチにより、一連の正三角形および二等辺三角形磁性体の合成に最近成功した。本研究ではこのTNN系化合物の極低温領域における静磁化率、磁化測定、電子スピン共鳴実験を行い、基底状態におけるスピン状態の解明を日指す。
(1) ニトロニルニトロキシドおよびイミノニトロキシドを含む三角スピン系物質4種類について、溶液の静磁化率および磁化測定を行い、分子内磁気相互作用を見積もった。
(2) これら4種類の結晶の0.5Kまでの磁化率測定から、分子間磁気相互作用について考察した。
(3) 結晶構造制御を目指し、トリラジカルのカチオン化を試みた。

Report

(2 results)
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (26 results)

All 2010 2009 2008 Other

All Journal Article (10 results) (of which Peer Reviewed: 10 results) Presentation (15 results) Remarks (1 results)

  • [Journal Article] Bose-Einstein condensation of semi-hard bosons in the S=1 dimerized organic compound F2PNNNO2010

    • Author(s)
      I.G.Bostrem, V.E.Sinitsyn, A.S.Ovchinnikov, Y.Hosokoshi, K.Inoue
    • Journal Title

      J.Phys., Condens.Matter 22(3)

      Pages: 36001-36001

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Appearance of magnetization jumps in magnetic hysteresis curves in spinel oxide FeV2O42010

    • Author(s)
      S.Nishihara, W.Doi, H.Ishibashi, Y.Hosokoshi, X.-M.Ren, S.Mori
    • Journal Title

      J.Appl.Phys 107

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic Field versus Temperature Phase Diagram of the Spin-1/2 Alternating-Bond Chain Compound F_5PNN2009

    • Author(s)
      Y.Yoshida, T.Kawae, Y.Hosokoshi, K.Inoue, N.Maeshima, K.Okunishi, K.Okamoto, T.Sakai
    • Journal Title

      J.Phys.Soc.Jpn. 78(7)

    • NAID

      10025962809

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A New Ferrimagnet Based on a Radical-substituted Radical Cation Salt2009

    • Author(s)
      Y.Masuda, M.Kuratsu, S.Suzuki, M.Kozaki, D.Shiomi, K.Sato, T.Takui, Y.Hosokoshi, X.Lan, Y.Miyazaki, A.Inaba, K.Okada
    • Journal Title

      J.Am.Chem.Soc. 131(13)

      Pages: 4670-4673

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Impurity effect of an S=1/2 two leg spin ladder antiferromagnet [P,h(NH3)]([18]crown-6) [Ni(dmit)_2] studied by ESR2009

    • Author(s)
      M.Fujisawa, A.Asakura, S.Okubo, H.Ohta, S.Nishihara, T.Akutagawa, T.Nakamura, Y.Hosokoshi
    • Journal Title

      Journal of Physics : Conference Series 150

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ferroelectric Properties and Nano-Scaled Domain Structures in (1-x)BiFeO3-xBaTiO(3)(0.33<x<0.50)2009

    • Author(s)
      T.Ozaki, S.Kitagawa, S.Nishihara, Y.Hosokoshi, M.S uzuki, Y.Noguchi, M.Miyayama, S.Mori,"",,385,155-161(2009).
    • Journal Title

      Ferroelectrics 385

      Pages: 155-161

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A New Ferrimagnet Based on a Radical-substituted Radical Cation Salt2009

    • Author(s)
      Y. Masuda, M. Kuratsu, S. Suzuki, M. Kozaki, D. Shiomi, K. Sato, T. Takui, Y. Hosokoshi, X. Lan, Y. Miyazaki, A. Inaba, K. Okada
    • Journal Title

      J. Am. Chem. Soc 131

      Pages: 4670-4673

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Impurity effect of an S=1/2 two leg spin ladder antiferromagnet [Ph(NH_3)]([18]crown-6) [Ni(dmit)_2] studied by ESR2009

    • Author(s)
      M. Fujisawa, A. Asakura, S. Okubo, H. Ohta, S. Nishihara, T. Akutagawa, T. Nakamura, Y. Hosokoshi
    • Journal Title

      Journal of Physics : Conference Series 150

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synthesis, properties and molecular-orbital calculations of new π-accep tors as ortho-analogues of DCNQI2008

    • Author(s)
      S. Aonuma, E. Fujiwara, T. Kanzawa, Y. Hosokoshi
    • Journal Title

      Journal of Physics : Conference Series 132

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Microstructures related to the ferroelectric properties in BiFeO_3-BaTiO_32008

    • Author(s)
      S. Kitagawa, Y. Horibe, K. Yoshii, M. Suzuki, Y. Noguchi, S. Nishihara, Y. Hookoshi, S. Mori
    • Journal Title

      Trans. Mater. Res. Soc. Jpn. 33

      Pages: 27-30

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] 反強磁性ボンド交替鎖有機磁性体F_5PNNの磁場中構造相転移2010

    • Author(s)
      原田太陽, 松下琢, 和田信雄, 西原禎文, 細越裕子
    • Organizer
      日本物理学会(2010年)第65回年次大会
    • Place of Presentation
      岡山大学
    • Year and Date
      2010-03-21
    • Related Report
      2009 Annual Research Report
  • [Presentation] S=1とS=1/2を含む有機トリラジカルBIPNNBNOの比熱と磁気相互作用の見積もり2010

    • Author(s)
      今澤貴史, C.Rotundu, 神澤恒毅, 井上克也, B.Andraka, 高野安正, 細越裕子
    • Organizer
      日本物理学会(2010年)第65回年次大会
    • Place of Presentation
      岡山大学
    • Year and Date
      2010-03-20
    • Related Report
      2009 Annual Research Report
  • [Presentation] Specific heat study of an organic tri radical BIPNNBNO having S=1 and S=1/22009

    • Author(s)
      T.Imazawa, H.Tsuju, T.Kanzawa, K.Inoue, Y.Takano, Y.Hosokoshi
    • Organizer
      The 3rd Japanese-Russian Workshop on Open Shell Compounds and Molecular Spin Devices
    • Place of Presentation
      淡路島国際会議場
    • Year and Date
      2009-11-16
    • Related Report
      2009 Annual Research Report
  • [Presentation] Doping effects on an organic S=1 spin ladder, BIP-TEN2009

    • Author(s)
      Yuko Hosokoshi
    • Organizer
      The 3rd Japanese-Russian Workshop on Open Shell Compounds and Molecular Spin Devices
    • Place of Presentation
      淡路島国際会議場
    • Year and Date
      2009-11-16
    • Related Report
      2009 Annual Research Report
  • [Presentation] S=1とS=1/2を含む有機トリラジカルBIPNNBNOの比熱測定2009

    • Author(s)
      今澤貴史・辻井宏之・神澤恒毅・井上克也・高野安正・細越裕子
    • Organizer
      48回電子スピンサイエンス学会年会(SEST2009)
    • Place of Presentation
      神戸大学
    • Year and Date
      2009-11-12
    • Related Report
      2009 Annual Research Report
  • [Presentation] 1次元反強磁性ボンド交替鎖有機磁性体F5PNNの磁場中磁気秩序2009

    • Author(s)
      原田太陽, 松下琢, 檜枝光憲, 和田信雄, 細越裕子, 西原禎文
    • Organizer
      日本物理学会秋季年会2009
    • Place of Presentation
      熊本大学
    • Year and Date
      2009-09-29
    • Related Report
      2009 Annual Research Report
  • [Presentation] 磁化率によって観測されたS=1/2ハイゼンベルグ反強磁性交替鎖F5PNNの磁場誘起磁気秩序2009

    • Author(s)
      熊野佑一, 原田太陽, 清水健吾, 松下琢, 和田信雄, 細越裕子
    • Organizer
      日本物理学会第64回年次大会
    • Place of Presentation
      立教大学
    • Year and Date
      2009-03-27
    • Related Report
      2008 Annual Research Report
  • [Presentation] 反強磁性三角格子磁性体TNN系有機ラジカルの磁性2009

    • Author(s)
      細越裕子, 中治光晶, 西原禎文, 野尻浩之
    • Organizer
      日本物理学会第64回年次大会
    • Place of Presentation
      立教大学
    • Year and Date
      2009-03-27
    • Related Report
      2008 Annual Research Report
  • [Presentation] S=1/2ハイゼンベルグ1次元反強磁性結合交替系F_5PNNのギャップ相における^<19>Fの核磁気緩和2009

    • Author(s)
      松野友樹, 中村元彦, 久保武治, 後藤喬雄, 藤井裕, 細越裕子, 酒井尚子
    • Organizer
      日本物理学会第64回年次大会
    • Place of Presentation
      立教大学
    • Year and Date
      2009-03-27
    • Related Report
      2008 Annual Research Report
  • [Presentation] S=1/2分子性スピンラダー物質Ni(dmit)_2の非磁性不純物による微細構造2009

    • Author(s)
      朝倉淳, 藤澤真士, 大久保晋, 太田仁, 西原禎文, 芥川智行, 中村貴義, 細越裕子
    • Organizer
      日本物理学会第64回年次大会
    • Place of Presentation
      立教大学
    • Year and Date
      2009-03-27
    • Related Report
      2008 Annual Research Report
  • [Presentation] Development of new triangular spin systems made of organic radicals2008

    • Author(s)
      Y. Hosokoshi, M. Nnakaji, S. Nishihara
    • Organizer
      11th International Congress on Molecule-based Magnets 2008
    • Place of Presentation
      Convitto della Calza, Florence, Italy
    • Year and Date
      2008-09-21
    • Related Report
      2008 Annual Research Report
  • [Presentation] Pressure effects and impurity effects on magnetic properties of a spin-1 ladder, BIP-TENO2008

    • Author(s)
      Y. Hosokoshi, Y. Konishi, S. Nishihara
    • Organizer
      11th International Congress on Molecule-b ased Magnets 2008
    • Place of Presentation
      Convitto della Calza, Florence, Italy
    • Year and Date
      2008-09-21
    • Related Report
      2008 Annual Research Report
  • [Presentation] Flustrated Triangular Spin Systems of Organic Radicals2008

    • Author(s)
      Mitsuaki Nakaji, Sadafumi Nishihara, Yuko Hosokoshi
    • Organizer
      The 21st IUCr Satellite Meeting "Molecu-lar Crystals Exhibiting Exotic Functions"
    • Place of Presentation
      Senri-Life Science Center, Osaka, Japan
    • Year and Date
      2008-08-21
    • Related Report
      2008 Annual Research Report
  • [Presentation] Magnetic Properties of Mixed Spin systems, BIPNNBNO2008

    • Author(s)
      T. Kanzawa, S. Nishihara, H. Nojiri, Y. Hosokoshi
    • Organizer
      The 21st IUCr Satellite Meeting "Molecu-lar Crystals Exhibiting Exotic Functions"
    • Place of Presentation
      Senri-Life Science Center, Osaka, Japan
    • Year and Date
      2008-08-21
    • Related Report
      2008 Annual Research Report
  • [Presentation] Approach to Quantum Spin Magnetism by Organic Radicals2008

    • Author(s)
      Yuko HOSOKOSHI
    • Organizer
      International Conference on New Prospect on Molecular Magnetism
    • Place of Presentation
      Grand Hotel New Oji, Tomakomai, Hokkaido, Japan
    • Year and Date
      2008-07-29
    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://www.p.s.osakafu-u.ac.jp/~yhoso/index.html

    • Related Report
      2008 Annual Research Report

URL: 

Published: 2008-04-01   Modified: 2018-03-28  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi