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Electrical Conductivity, Magnetic Susceptibility, and Infrared Spectra in the Superconducting Systems BiSrCaCuO and TlBaCaCuO
Author(s) -
Gruber H.,
Krautz E.,
Fritzer H. P.,
Gatterer K.,
Popitsch A.
Publication year - 1989
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221530132
Subject(s) - superconductivity , electrical resistivity and conductivity , magnetic susceptibility , copper , analytical chemistry (journal) , doping , infrared spectroscopy , materials science , chemistry , high temperature superconductivity , infrared , cuprate , spectral line , conductivity , condensed matter physics , crystallography , metallurgy , physics , organic chemistry , quantum mechanics , astronomy , optics , optoelectronics , chromatography
Since the properties of the high temperature superconducting systems TlBaCaCuO and BiSrCaCuO depend very sensitively on composition and structures various preparation methods are applied and the products are tested by measuring the transport and magnetic susceptibility properties together with their IR‐spectra. Most samples show multiphase structure. The highest transition temperature with zero resistance T co ≈ 125 K, is found in the system TlBaCaCuO, which is lowered to T co ≈ 102 K in the case of doping with Ag.