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非晶質等新素材の動的構造と局所構造の研究

Research Project

Project/Area Number 11211202
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionThe High Energy Accelerator Research Organization

Principal Investigator

新井 正敏  高エネルギー加速器研究機構, 大強度陽子加速器計画推進部, 教授 (30175955)

Co-Investigator(Kenkyū-buntansha) 山口 敏男  福岡大学, 理学部, 教授 (70158111)
福永 俊晴  京都大学, 原子炉実験所, 教授 (60142072)
三沢 正勝  新潟大学, 理学部, 教授 (80005941)
山室 修  東京大学, 物性研究所, 助教授 (20200777)
金谷 利治  京都大学, 化学研究所, 教授 (20152788)
飯野 隆  高エネルギー加速器研究機構, 物質構造科学研究所, 助手 (10301722)
大友 季哉  高エネルギー加速器研究機構, 物質構造科学研究所, 助手 (90270397)
古坂 道弘  高エネルギー加速器研究機構, 物質構造科学研究所, 教授 (60156966)
大隈 一政  高エネルギー加速器研究機構, 物質構造科学研究所, 教授 (70011715)
武藤 豪  高エネルギー加速器研究機構, 物質構造科学研究所, 助手 (90249904)
Project Period (FY) 1999 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥62,200,000 (Direct Cost: ¥62,200,000)
Fiscal Year 2003: ¥14,900,000 (Direct Cost: ¥14,900,000)
Fiscal Year 2002: ¥14,900,000 (Direct Cost: ¥14,900,000)
Fiscal Year 2001: ¥15,200,000 (Direct Cost: ¥15,200,000)
Fiscal Year 2000: ¥14,600,000 (Direct Cost: ¥14,600,000)
Fiscal Year 1999: ¥2,600,000 (Direct Cost: ¥2,600,000)
Keywordsダイナミクス / 非晶質 / MARI分光器 / 日英協力 / ダイナミックス / パルス中性子 / 局所構造 / 動的構造 / MAPS分光器 / 非晶質・ガラス / MAPS
Research Abstract

非晶質の研究は第一期日英協力(1987年〜1996年)でISIS施設に建設したMARI分光器でなされている。
本年度はこれまで行われてきたガラスの基本的ダイナミクスの研究を元に、機能を有するガラス、たとえば超イオン導電性ガラスについてその機構についての研究を展開した。これまで、イオン伝導とガラスの構造に系統的な特徴が見いだされており、イオン導電性はガラス中の自由体積あるいは空房と関係があることが指摘されてきた。本研究では、それが、ガラスの低エネルギーに現れるボゾンピークと深く関連づけられることを発見した。これは、これまで、イオンの動き自身に関わる拡散の立場ばかりから研究されてきた同分野の研究に大きな展開を与えたといってよい。本研究はイオンを取り巻く中距離構造を形成するネットワークのダイナミクスがイオンの動きに大きな役割を持つことを示した点で、高く評価されている。

Report

(5 results)
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (31 results)

All Other

All Publications (31 results)

  • [Publications] J.-H.Chung: "In-plane anisotropy and temperature dependence of oxygen phonon modes in YBa2Cu3O6.95"Physical Review B. 67. 014517-1-014517-9 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] T Yokoo: "Incommensurate properties of high-Tc superconductor YBa2Cu3O6.93"Physica C. 388-389. 223-224 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] T Yokoo: "Incommensurate Dynamical Properties of Optimally Doped YBa2Cu3O6"J Low temperature Physics. 131. 731-736 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] T.Kanaya: "Bucknall, Annealing Effects on Thickness of Polystyrene Thin Films As Studied by Neutron Reflectivity"Polymer. 38. 3769-3773 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] M.Nakamura: "Dynamical properties of vitreous silica around the first sharp diffraction peak"Physical Review B. 67. 064204-1-064204-6 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] A.Chiba: "Vibrational, single-particle-like, and diffusive dynamics in liquid Se, Te, and Te50Se50"J Chem Phys. 119. 9047-9062 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] T E.Mason: "Next-Generation Neutron Sources"MRS Bulletin. 28・12. 923-928 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] T Terao: "Adsorption of colloidal particles on a charged surface : Cluster Monte Carlo simulations"Phys.Rev. E. 65. 21405-1-21405-5 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] M.Arai: "Effect of low-energy dynamics on anomalous vibrational anomalous amplitudes in vitreous silica"Phys Rev B. 66. 024203-1-024203-6 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] A Chiba: "Quasielastic neutron scattering of liquid Te5OSe5O in the semiconductor-to-metal transition range"J.Phys.Soc. Jpn. 71. 504-508 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] N Torikai: "Forward to Slow Dynamics of Soft-Matter and Biological Macromolecules Studied by Neutron Scattering"Journal of Neutron Research. 10. 111-113 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] M Nakamura: "Effect of low-energy dynamics on anomalous vibrational amplitudes in vitreous silica"Phys.Rev. B. 66. 024203-1-024203-6 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] A Chiba: "Neutron scattering studies of liquid tellurium-selenium mixtures"J Non-Cryst Solids. 312-314. 384-387 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] O.Yamamuro: "Neutron Scattering Study of Protonated and Deuterated Potassium Phosphate Glasses"J. Phys. Soc. Jpn.. 70 (Suppl. A). 386-388 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] M.Arai: "Intermediate range structure and low-energy dynamics of densified vitreous silica"J. of Non. Cryst. Solids. 293-295. 389-393 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] M.Arai: "Dispersive excitation in different forms of SiO2"J. of Non. Cryst. Solids. 293-295. 377-382 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] M.Arai: "Phase inhomogeneities and lattice expansion near Tc in the Mg11B2 superconductor"J. Phys.:condens. Matter. 13. L795-L802 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] M.Arai: "Vibraional Spectroscopy of Superconducting MgB2 by Neutron Inelastic Scattering"J. of Phys. Soc. Jpn. 70. 1480-1482 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 新井正敏: "実験物理学講座5 構造解析 藤井保彦 編"丸善. 305-324 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T Yamaguchi: "The structure of subcritical and supercritical methanol by neutron diffraction, empirical potential structure refinement, and spherical harmonic analysis"J Chem Phys. 112. 8976-8987 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] M.Arai: "Density dependence of the boson peak of vitreous silica"Physica B. 284-288. 1157-1158 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] M Arai: "Incommensurate Spin Dynamics of Underdoped Superconductor YBa2Cu306.7"Phys Rev Lett. 83. 608-611 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] M Arai: "Incommensurate Spin Dynamics of Superconductor YBa2Cu306+x"Institute of Physics Conference Proceedings. 172-175 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] T Nishijima: "Incommensurate spin dynamics of high-Tc superconductor YBa2Cu307-d"J Phys Chem Solids. 60. 1091-1094 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] M Arai: "Observation of the Crossover to Strong Scattering of Acoustic Phonons in Densified Silica"Phys Rev Lett. 83. 1355-1358 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] M Arai: "Novel existence of collective propagating mode and strongly localized mode in vitreous silica"Physica B. 263-264. 268-272 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] M Arai: "Novel dynamics of vitreous silica and metallic glass"Philosophical Magazine B. 79. 1733-1739 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y Inamura: "Peculiar suppression of the specific heat and boson peak intensity of densified SiO2 glass"Physica B. 263-264. 299-302 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] M Arai: "The structure and dynamics of hard carbon formed from C60 fullerene"Physica B. 263-264. 632-635 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] M Kataoka: "Low energy dynamics of globular proteins studied by inelastic neutron scattering"J Phys Chem Solid. 60. 1285-1289 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] T Yamaguchi: "Observation of chloride-ion hydration in high-temperature liquid and super-critical water by spherical harmonic expansion analysis"J Chem Phys. 110. 3529-3535 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2018-03-28  

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