Superconductivity in the Y-Sr-Cu-O system

Samples with a nominal composition YSCuO/sub 4/..sqrt../sub y/ processed at temperatures above 1200 /sup 0/C exhibit two superconducting transitions, one at 80 K and another at 40 K. The 80 K transition may be due to the 1:2:3 phase, and the 40 K transition to the 2:1:4 phase. The dc magnetic-moment...

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Veröffentlicht in:	Phys. Rev. B: Condens. Matter; (United States) 1988-06, Vol.37 (16), p.9765-9768
Hauptverfasser:	WU, M. K, ASHBURN, J. R, HIGGINS, C. A, LOO, B. H, BURNS, D. H, IBRAHIM, A, ROLIN, T. D, CHIEN, F. Z, HUANG, C. Y
Format:	Artikel
Sprache:	eng
Schlagworte:	360204 - Ceramics, Cermets, & Refractories- Physical Properties 656100 - Condensed Matter Physics- Superconductivity ALKALINE EARTH METAL COMPOUNDS CHALCOGENIDES CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY Condensed matter: electronic structure, electrical, magnetic, and optical properties COPPER COMPOUNDS COPPER OXIDES ELECTRIC CONDUCTIVITY ELECTRICAL PROPERTIES Exact sciences and technology MAGNETIC MOMENTS MATERIALS SCIENCE OXIDES OXYGEN COMPOUNDS PHYSICAL PROPERTIES Physics Properties of type I and type II superconductors STRONTIUM COMPOUNDS STRONTIUM OXIDES SUPERCONDUCTIVITY THERMODYNAMIC PROPERTIES TRANSITION ELEMENT COMPOUNDS TRANSITION TEMPERATURE YTTRIUM COMPOUNDS YTTRIUM OXIDES
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Beschreibung
Zusammenfassung:	Samples with a nominal composition YSCuO/sub 4/..sqrt../sub y/ processed at temperatures above 1200 /sup 0/C exhibit two superconducting transitions, one at 80 K and another at 40 K. The 80 K transition may be due to the 1:2:3 phase, and the 40 K transition to the 2:1:4 phase. The dc magnetic-moment measurements showed an anomaly at 14 K, which suggests the possible existence of a magnetically ordered state.
ISSN:	0163-1829 1095-3795
DOI:	10.1103/PhysRevB.37.9765