Effect of Doping with Fluorite-related Metal Fluorides on the Properties of Thallium HTSCs

Тип публикации: статья из журнала

Год издания: 1998

Аннотация: The composition and properties of Tl-Ba-Ca-Cu-O HTSCs are studied, in relation to doping with fluorite-related metal fluorides (CaF2, SrF2, BaF2, SrF2-BaF2 (1:1) solid solution, CdF2) by X-ray powder diffraction and resistivity R(T) and magnetic X'(T) measurements. The specified fluorides react with the Tl-Ba-Ca-Cu-O system to form BaF2. The properties of doped superconductors depend on the dopant. Doping the Ba2Ca2Cu3O7 + 1/2Tl2O3 + NH4NO3 system with strontium and cadmium fluorides results in two solid solutions, Ba1 - xSrxF2 and CdO · BaF2, which substantially affect the superconductor properties. The solid solutions were identified in the SrF2 + BaO and CdF2 + BaO model systems.

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Издание

Журнал: Russian Journal of Inorganic Chemistry

Выпуск журнала: Vol. 43, Is. 5

Номера страниц: 673-678

Авторы

  • Volkov V.E. (Inst. of Chem. and Chem. Metallurgy,Siberian Division,Russian Academy of Sciences)
  • Kirik S.D. (Inst. of Chem. and Chem. Metallurgy,Siberian Division,Russian Academy of Sciences)
  • Danilov I.Yu. (Inst. of Chem. and Chem. Metallurgy,Siberian Division,Russian Academy of Sciences)
  • Kovalev Yu.G. (Inst. of Chem. and Chem. Metallurgy,Siberian Division,Russian Academy of Sciences)
  • Zharova L.A. (Inst. of Chem. and Chem. Metallurgy,Siberian Division,Russian Academy of Sciences)
  • Zhidkov L.L. (Inst. of Chem. and Chem. Metallurgy,Siberian Division,Russian Academy of Sciences)
  • Chernov V.K. (State Technical University)

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