Статья

Peculiarities in the properties of ceramic Bi (Tl)–Sr (Ba)–Ca–Cu–O

A. S. Baryl’nikPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovV. M. DmitrievPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovDmitriy A. DikinPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovI. V. Zolochevskiı̆Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovA. S. IsakinaPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovL. A. KvichkoPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovA. I. ProkhvatilovPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovR. F. RamakaevaPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovE. V. KhristenkoPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovG. E. ChurilovPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovG. N. ShcherbakovPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovL. D. YantsevichPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov

Soviet Journal of Low Temperature Physicsjournal1989en

ABI

Аннотация

The phase composition, phase structure, lattice parameters, thermal expansion coefficients, magnetic susceptibility, and electric resistivity of Bi and Tl ceramics were measured at temperatures between 5 and 293 K. The 2212 phase revealed an instability which was manifested in the relaxation of structural and thermodynamic characteristics induced by redistribution and ordering of oxygen atoms. Thermal expansion anisotropy may be observed in the basal plane of the 2212 phase of the Bi ceramic. The Tl ceramic is found to contain a new pseudotetragonal phase 2245 with the parameter c = 48.2 Å. According to the measurements of the ρ (T) dependence, this phase may become superconducting at T = 180 K.

Темы

Advanced Condensed Matter Physics Magnetic and transport properties of perovskites and related materials Microwave Dielectric Ceramics Synthesis

Идентификаторы

DOI: 10.1063/10.0032244

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