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Superconductivity at 90 K in the Tl-Ba-Cu-O system

Journal Article · · Physical Review Letters
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Stable and reproducible superconductivity has been unambiguously observed in a new Tl-Ba-Cu-O system containing no group-IIIB elements. Resistance in these rare-earth-free oxides starts to drop sharply above 90 K and reaches zero at 81 K. Meissner flux expulsion and diamagnetic shielding show bulk superconductivity. Further substitutions of elements for this system may lead to even higher-temperature superconductors.
Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
DOE Contract Number:
AC36-08GO28308
OSTI ID:
1461781
Report Number(s):
NREL/JA-5200-72010
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 10 Vol. 60; ISSN 0031-9007; ISSN PRLTAO
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English

References (20)

New superconducting cuprate perovskites journal May 1987
Melt‐processible rare earth‐Ba‐Cu‐O superconductors based on molten Ba‐Cu oxides journal November 1987
High T c Magnetic Superconductor: Ho-Ba-Cu Oxide journal April 1987
Superconductivity near 90 K in the Lu-Ba-Cu-O system journal May 1987
Superconductivity in Alkaline Earth-Substituted La2CuO4-y journal April 1987
Contrast enhancements due to superconductivity in scanning electron microscopy from Y 1− x BaCu 2+ x O y high T c superconductors journal October 1987
High- T c superconductivity in regions of possible compound formation: Y 2 − x Ba x CuO 4 − x / 2 + δ and Y 2 − x Ba 1 + x Cu 2 O 6 − x / 2 + δ journal May 1987
High- T c Superconductivity in New Oxide Systems journal April 1987
Superconductivity and magnetism in the high- T c superconductor YBaCuO journal April 1987
Superconductivity at 93 K in a new mixed-phase Y-Ba-Cu-O compound system at ambient pressure journal March 1987
Superconductivity at 95 K in the New Yb-Ba-Cu Oxide System journal April 1987
Bulk superconductivity at 36 K in La 1.8 Sr 0.2 CuO 4 journal January 1987
Onset of superconductivity in Y-Ba-Cu-O at 100 K journal March 1987
Possible highT c superconductivity in the Ba?La?Cu?O system journal June 1986
Bulk superconductivity at 91 K in single-phase oxygen-deficient perovskite Ba 2 YCu 3 O 9 − δ journal April 1987
Superconductivity above 90 K in the square-planar compound system A Ba 2 Cu 3 O 6 + x with A=Y , La, Nd, Sm, Eu, Gd, Ho, Er and Lu journal May 1987
Evidence for superconductivity in La 2 CuO 4 journal June 1987
Flux trapping and superconductive glass state in La 2 CuO 4 − y :Ba journal March 1987
Superconductivity in the mixture Y1Ba2Ag3Ox journal November 1987
Evidence for superconductivity above 40 K in the La-Ba-Cu-O compound system journal January 1987

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Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
resistance
superconductivity