Journal ArticleDOI
Development of a microprocessor-based four probe DC resistivity setup for T/sub c/ measurement of superconducting materials
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In this paper, a microprocessor-based resistivity measurement system for high transition temperature (T/sub c/) superconducting materials is described, which includes interfacing an Intel 8085 microprocessor system with an IBM-compatible personal computer (PC) through RS-232C serial communication.Abstract:
The design of a microprocessor-based resistivity measurement system for high transition temperature (T/sub c/) superconducting materials is described. This design includes interfacing an Intel 8085 microprocessor system with an IBM-compatible personal computer (PC) through RS-232C serial communication. This design is used to measure resistivity for superconducting samples of YBa/sub 2/Cu/sub 3/O/sub 7-x/ and strontium/potassium substituted YBa/sub 2/Cu/sub 3/O/sub 7-x/. A correction method is described for the parameters whose values are changing throughout the measurement period to minimize the measurement errors. >read more
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Journal ArticleDOI
Effect of substitution at the barium site in YBa2Cu3O7-δ
TL;DR: In this paper, the oxygen content in YBa2Cu3O7-δ has been varied by substitution at Ba site with Sr or K and its influence on the structural and superconducting properties has been studied.
References
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Book
CRC Handbook of Chemistry and Physics
TL;DR: CRC handbook of chemistry and physics, CRC Handbook of Chemistry and Physics, CRC handbook as discussed by the authors, CRC Handbook for Chemistry and Physiology, CRC Handbook for Physics,
Journal ArticleDOI
Bulk superconductivity at 91 K in single-phase oxygen-deficient perovskite Ba 2 YCu 3 O 9 − δ
Robert J. Cava,Bertram Batlogg,R. B. van Dover,Donald W. Murphy,Steven A. Sunshine,Theo Siegrist,J. P. Remeika,Edward A. Rietman,S. M. Zahurak,G. P. Espinosa +9 more
TL;DR: Observation de la transition supraconductrice a 91 K, sur 1,5 K and determination of the densite de courant critique, de l'effet Meissner, du champ critique, du parametre de Sommerfeld, de parametres GL.
Journal ArticleDOI
Superconductivity in YBa2−xSrxCu3O7−δ
B.W. Veal,Wai-Kwong Kwok,A. Umezawa,G. W. Crabtree,James D. Jorgensen,J. W. Downey,L.J. Nowicki,A. W. Mitchell,Arvydas P. Paulikas,C. H. Sowers +9 more
TL;DR: In this article, the structure, resistivity, and Meissner effect measurements on YBa2−xSrxCu3O7−δ for 0
Journal ArticleDOI
Superconductivity in YBa/sub 2-//sub x/Sr/sub x/Cu/sub 3/O/sub 7-//sub delta/
B.W. Veal,W. K. Kwok,A. Umezawa,G. W. Crabtree,James D. Jorgensen,J. W. Downey,L.J. Nowicki,A. W. Mitchell,Arvydas P. Paulikas,C. H. Sowers +9 more
TL;DR: In this paper, structure, resistivity, and Meissner effect measurements on YBa/sub 2-//sub x/Sr/sub X/Cu/sub 3/O/sub 7- //sub delta/ for 0
Journal ArticleDOI
Substitution Effect of Sr for Ba of High-Tc Superconducting YBa2Cu3O7-y Ceramics
TL;DR: In this paper, a single phase Y(Ba1-xSrx)2Cu3O7-y [x=0, 0.1,0.2,