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Ion Dynamics in Superionic Conductors Studied by a Spectral Hole-Burning Effect

Research Project

Project/Area Number 01460069
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Applied materials
Research InstitutionThe Institute for Solid State Physics, The University of Tokyo

Principal Investigator

SUEMOTO Tohru  The University of Tokyo, The Institute for Solid State Physics, Associate Professor, 物性研究所, 助教授 (50134052)

Co-Investigator(Kenkyū-buntansha) KAGA Takahiro  The University of Tokyo, The Institute for Solid State Physics, Research Associa, 物性研究所, 助手 (60195419)
TANAKA Koichoro  The University of Tokyo, The Institute for Solid State Physics, Research Associa, 物性研究所, 助手 (90212034)
Project Period (FY) 1989 – 1990
Project Status Completed (Fiscal Year 1990)
Budget Amount *help
¥6,200,000 (Direct Cost: ¥6,200,000)
Fiscal Year 1990: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1989: ¥4,900,000 (Direct Cost: ¥4,900,000)
KeywordsSuperionic conductor / Hole-burning / Ziroconia / FLN / Ceria / イオン伝導ガラス / 発光
Research Abstract

(1) The optical absorption and luminescence spectra of ^7F_0 -^5 D_0 transition in Eu^<3+> ions are studied for Eu^<3+> -doped CeO_2 -Y_2 O_3 and ZrO_2-Y_2O_3 (YSZ) systems. From a detailed study of the luminescence bands under site selective excitation, following results are obtained. In Eu^<3+> /CeO^2-Y_2O_3, three types of trivalent ion sites are found ; the site without vacancy, with one vacancy on the nearest neighbor site, and with one vacancy on the 2nd nearest site. In YSZ, trivalent ion site without vacancy and one and two vacancies on the nearest nieghbor site are found.
(2) The FLN(fluorescence line narrowing) spectra are studied in Eu^<3+> -doped YSZ(ZrO_2-Y_2O_3) crystals with various compositions. The homogeneous line width is found to be proportional to T^<2.6> between 80K and 300K. Since the homogeneous and inhomogeneous line widths have different composition dependence, R(=GAMMA_<inhomo>/GAMMA_<homo>) has a maximum value at certain composition. It is found that the 19mol% YSZ has a maximum value, R=5000, at 20K. This result suggests usefulness of the Eu^<3+>/YSZ system for a frequency domain optical memory.
(3) In 10mol%YSZ doped with 2%Pr^<3+>, we found a persistent hole-burning effect for ^3H_4-^1D_2 transition at 6115A. The hole can be burned below 25K and its width is 0.35GHz at 4.2K. The hole width, which is assumed to be equal to 2GAMMA_<homo>, has a T^<1.3> temperature dependence. This temperature dependence is very similar to that of the dye molecules embedded in polymers, and strongly suggests that the dephasing mechanism in this system involves a coupling of the rare-earth ions with TLS(two level system). The persistent hole can be used as a new tool to investigate the microscopic structures and the interaction of the mobile ions with the defect centers in YSZ. A demonstration as a frequency domain memory will be also a fruitful subject as a next step.

Report

(3 results)
  • 1990 Annual Research Report   Final Research Report Summary
  • 1989 Annual Research Report
  • Research Products

    (30 results)

All Other

All Publications (30 results)

  • [Publications] H.Yugami,T.Watanabe,T.Suemoto,S.Shin,S.Sobajima and M.Ishigame: "Control of Oxygen Deficiency in Superconducting Y_1 Ba_2 Cu_3 O_7ーy Films Using a SolidーState Electrolyte" Jpn.J.Appl.Phys.28. L1411-1414 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] T.Suemoto: "Quasielatic light scattering in superionic conductors" Solid State Ionics. 40/41. 250-254 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] H.Yugami,A.Koike,A.Nakajima,M.Ishigame and T.Suemoto: "SiteーSelective Spectroscopy of Eu^<3+> in YSZ and Y^<3+>ーDoped CeO_2" Solid State Ionics. 40/41. 316-319 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] T.Suemoto and H.Arashi: "Practical measurement of diffusion constants in sintered zirconias by using light scattering method" J.Appl.Phys.未定. (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] M.Ishigame,T.Suemoto and S.Shin: "Light scattering in superionic conductors(review)" Solid State Ionics.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] H.Yugami,A.Nakajima,M.Ishigame and T.Suemoto: "Study of local structurs in superionic conductor;Y^<3+>ーDoped CeO_2 by using site selective spectroscopy" Phys.Rev.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] H.Yugami,A.Koike,M.Ishigame and T.Suemoto: "Relationship between local structures and ionic conductivity in ZrO_2ーY_2O_3 studied by selective spectroscopy" Phys.Rev.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] H.Yugami,M.Ishigame and T.Suemoto: "Fluorescence Line Narrowing Study of Eu^<3+> in YSZ:A possibility of application for a optical memory meterial" Optics Letters.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] K.Tanaka,T.Okuno,H.Yugami,M.Ishigame and T.Suemoto: "Persistent Spectral HoleーBurning of Pr^<3+> ions in Yttria Stabilized Zircnia:A new holeーburning material" Optics Communications.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] H, Yugami,: "Control of Oxygen Deficiency in Superconducting Y_1 Ba_2 Cu_3 O_<7-y> films Using a Solid-State Electrolyte," Jpn. J. Appl. Phys.vol. 28. 1411-1414 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] T. Suemoto,: "Quasielastic light scattering in superionic conductors," Solid State Ionics. vol. 40/41. 250-254 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] H. Yugami,: "Site-Selective Spectroscopy of Eu^<3+> in YSZ and Y^<3+> -Doped GeO_2," Solid State Ionics. vol, 40/41. 316-319 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] T. Suemoto,: "Practical measurement of diffusion constants in sintered zirconias by using light scattering method," J. Appl. Phys.1991

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] M. Ishigame: "Light scattering in superionic conductors (review)," Solid State Ionics.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] H. Yugami,: "Study of local structures in superionic conductor ; Y^<3+> -Doped CeO_2 by using site selective spectroscopy," Phys. Rev.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] H. Yugami,: "Relationship between local structures and ionic conductivity in ZrO_2-Y_2O_3 studied by site selective spectroscopy," Phys. Rev.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] H. Yugami,: "Fluorescence Line Narrowing Study of Eu^<3+> in YSZ : A possibility of application for a optical memory material,"

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] K. Tanaka,: "Persistent Spectral Hole-Burning of Pr^<3+> ions in Yttria Stabilized Ziroconia : A new hole-burning material" Optics Communications.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] H.Yugami,T.Watanabe,T.Suemoto,S.Shin,S.Sobajima and M.Ishigame: "Control of Oxygen Deficiency in Superconducting Y_1 Ba_2 Cu_3 O_<7ーy> Films Using a SolidーState Electrolyte" Jpn.J.Appl.Phys.28. L1411-1414 (1989)

    • Related Report
      1990 Annual Research Report
  • [Publications] T.Suemoto: "Quasielastic light scattering in superionic conductors" Solid State Ionics. 40/41. 250-254 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Yugami,A.Koike,A.Nakajima,M.Ishigame and T.Suemoto: "SiteーSelective Spectroscopy of Eu^<3+> in YSZ and Y^<3+>ーDoped CeO_2" Solid State Ionics. 40/41. 316-319 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] T.Suemoto and H.Arashi: "Practical measurement of diffusion constants in sintered zirconias by using light scattering method" J.Appl.Phys.(1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] M.Ishigame,T.Suemoto and S.Shin: "Light scattering in superionic conductors (review)" Solid State Ionics.

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Yugami,A.Nakajima,M.Ishigame and T.Suemoto: "Study of local structurs in superionic conductor;Y^<3+>ーDoped CeO_2 by using site selective spectroscopy" Phys.Rev.

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Yugami,A.Koike,M.Ishigame and T.Suemoto: "Relationship between local structures and ionic conductivity in ZrO_2ーY_2O_3 studied by site selective spectroscopy" Phys.Rev.

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Yugami,M.Ishigame and T.Suemoto: "Fluorescence Line Narrowing Study of Eu^<3+> in YSZ:A possibility of application for a optical memory material" Optics Letters.

    • Related Report
      1990 Annual Research Report
  • [Publications] K.Tanaka,T.Okuno,H.Yugami,M.Ishigame and T.Suemoto: "Persistent Spectral HoleーBurning of Pr^<3+>ions in Yttria Stabilized Zirconia:A new holeーburning material" Optics Communications.

    • Related Report
      1990 Annual Research Report
  • [Publications] S.Muto,T.Suemoto and M.Ishigame: "Raman Scattering of the Superionic Conducting Glasses in the System Agl-Ag_2O-MoO_3" Solid State Ionics. 35. 307-310 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] H.Yugami,T.Watanabe,T.Suemoto,S.Shin,S.Sobajima,M.Ishigame: "Control of Oxygen Deficincy in Superconducting Y_1Ba_2Cu_3O_7_<-y> Films Using a Solid-State Electrolyte" Jpn J.Appl.Phys.28. L1411-1414 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] T.Suemoto: "Quasielastic Light Scattering in Superionic Conductors" Solid State Ionics.

    • Related Report
      1989 Annual Research Report

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Published: 1989-04-01   Modified: 2016-04-21  

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