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Evidence of Room‐Temperature Superconductivity in the BiSrCuO System
Author(s) -
Burrows Richard S.,
McDaniel Darl H.
Publication year - 1994
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199408971
Subject(s) - superconductivity , tetragonal crystal system , materials science , phase (matter) , high temperature superconductivity , condensed matter physics , analytical chemistry (journal) , chemistry , physics , chromatography , organic chemistry
A tetragonal phase SrCuO 2 possibly causes the superconducting behavior of the samples with the nominal composition Bi 2 Sr 2 CuO 6 prepared in the sol‐gel process. The results of the measurements indicate a critical temperature of 70 °C, and the superconductivity is attributed to a phase present in the sample in less than 0.1%. Eight samples show evidence of room‐temperature superconductivity, and an additional fourteen samples show superconductivity between 25 and 110 K.