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Effects of Electric field and Uniaxial Stress on Paramagnetic Spectra in Ferreoelectric Incommensurate phase and its Analyisi by Landau-Ishibashi Theoro.

Research Project

Project/Area Number 61540248
Research Category

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

Allocation TypeSingle-year Grants
Research Field 固体物性
Research InstitutionHOKURIKU UNIVERSITY

Principal Investigator

TADASHI Kobahasya  School of Pharmacy, Hokuriku University, 薬学部, 教授 (30100936)

Project Period (FY) 1986 – 1987
Project Status Completed (Fiscal Year 1987)
Budget Amount *help
¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 1987: ¥100,000 (Direct Cost: ¥100,000)
Fiscal Year 1986: ¥1,000,000 (Direct Cost: ¥1,000,000)
KeywordsEPR / Commensturate-incommensurtate phase transition / Ferroelectricity / Ferroelasticity / Effect of electric field / Effect of uniaxial stress / Landau theory / ディスコメンシュレーション / ESR / 強誘電体 / 強弾性体 / 応力効果
Research Abstract

The Landau-Ishibashi theory was applied to interprete the temperature dependence of the magnetic resonance spectrum in the incommensutate and commensurate phases of A_2 BX_4 type crytals. Taking into accunt the local electric field and uniaxial stress at the probe sub-lattice, we domonstrated the systematic temperature change in the splitting and the shape of resonance lines and clearly reproduced the reported results in K_2 SeO_4 : SeO_4^-, The apparatus for applying uniaxial stress (Pressure and tension) and electric field used with EST spectrometer was developed. This appratus is characterized by perpendicular squeezer which si placed in the static magnetic fiels perpendicular to the applied stress and is rotated. Moreover the sample temperature can easily by changed by the cold ot hot gas blowing method. By using this apparatus we have observed the incommensurate domain switching of ferrroelastic substance such as LaNbo_4. We also obserbed the effect of electric field and uniazial stress on paramagnetic spectra in ferroelectric incommensurate phase in (N(CH_3)_4)_2CoCl_4 :Mn^<2+>.

Report

(2 results)
  • 1987 Final Research Report Summary
  • 1986 Annual Research Report
  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] Masahiko Suhara: Ferroelectrics. 66. 295-301 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 小林正: 日本結晶学会誌. 28. 226-236 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Tadashi Kobayashi: Phase Transitions. (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Tadashi Kobayashi: Jpn.J.Appl.Phys.(1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Masahiko Suhara: J.Phys.C.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 小林正: Phys.Rev.B.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 小林正: "APL図形出力について" 金沢大学情報処理センター, 153 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Masahiko Suhara: "Rotational Modulation of BX_4 Groups in the Incommensurate pHase of K_2SeO_4 and Related A_2BC_4 Type Crystals" Ferroelctrics. 66. 295-301 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Tadashi Kobayashi: "Developemtn of Two/Three- Circle ESR Goniometers and ESR Crystallographic Compuration program System." J. Crystallographic Soc. Jpn.28. 226-236 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Tadashi kobayashi: "EPR study of High-C_c Superconductor YBa_2Cu_3O_<7-<delta>>." Pahse Transitions. (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Tadashi Kobayashi: "Single Crystal EST study of Y_2BaCuO_5" Jpn. J. Appl. Phys.(1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Masahiko Suhara: "Modulated Dtructure of the Incommensurate Phase in (N(CH_3)_4)_2 ZnCl_4 crystal." J. Phys. C (submitted).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Tadashi Kobayashi: Kanazawa University Information Processing Center. APL Language and APL Graphic Processing, 153 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] M.Suhara: Ferroelectrics. 66. 295-301 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] 小林正: 日本結晶学会誌. 28. 226-236 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] 小林正: "APL図形出力について" 金沢大学情報処理センター, 153 (1987)

    • Related Report
      1986 Annual Research Report

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Published: 1987-03-31   Modified: 2016-04-21  

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