Title :
Superconductivity and crystal structure of high Tc Bi-Ca-Sr-Cu-O compounds
Author :
Pan, V.M. ; Dovgopol, V.P. ; Popov, A.G. ; Spivakovskij, V.B. ; Flis, V.S. ; Zhalko-Titarenko, A.V. ; Jakhtar, V. G Bar ; Pashitskij, A.E. ; Melnikov, V.S. ; Pshencova, N.P. ; Demenko, D.P. ; Rjabchenko, S.M.
Author_Institution :
Inst. of Metal Phys., Kiev, USSR
fDate :
3/1/1989 12:00:00 AM
Abstract :
The superconducting properties, phase chemical composition and crystal structure of Bi-Ca-Sr-Cu-O system sintered samples were investigated. Twostep resistive superconducting transitions with a 120 K Tc onset were observed. The dominant phase composition might be formulated as Bi2CaSr2Cu2+xOy where x =0.4-1.0, depending upon the heat-treatment procedure
Keywords :
bismuth compounds; calcium compounds; crystal atomic structure of inorganic compounds; heat treatment; high-temperature superconductors; stoichiometry; strontium compounds; superconducting transition temperature; 120 K; Bi-Ca-Sr-Cu-O; Bi2CaSr2Cu2+xOy; crystal structure; heat-treatment procedure; high temperature superconductor; phase chemical composition; sintered samples; superconducting properties; two-step resistive transitions; Bismuth; Content addressable storage; Electrons; Magnetic fields; Magnetic susceptibility; Microstructure; Superconducting epitaxial layers; Superconductivity; Temperature dependence; Temperature distribution;
Journal_Title :
Magnetics, IEEE Transactions on
