ENHANCEMENT OF T-C IN RXCU2.8RE0.2O6-LESS-THAN-OR-SIMILAR-TO-1-X=0,0.75) DUE TO THE ELEVATED OXYGEN-PRESSURE ANNEALING(Z (Z)

Authors
DAS A SURYANARAYANAN R DABROWSKI B
Citation
A. Das et al., ENHANCEMENT OF T-C IN RXCU2.8RE0.2O6-LESS-THAN-OR-SIMILAR-TO-1-X=0,0.75) DUE TO THE ELEVATED OXYGEN-PRESSURE ANNEALING(Z (Z), Solid state communications, 99(6), 1996, pp. 413-418
Citations number
32
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
99
Issue
6
Year of publication
1996
Pages
413 - 418
Database
ISI
SICI code
0038-1098(1996)99:6<413:EOTIR>2.0.ZU;2-7
Abstract
We report on the annealing study of the Y1-xPrxSr2Cu2.8Re0.2O6+z (z si milar to 1; x=0, 0.75) samples under elevated oxygen pressures (200 ba r). For the samples prepared at atmospheric pressures T-c=42 K for x=0 and < 5 K for x=0,75. After annealing for x=0, T-c increased from 42 to 55 K and superconductivity was observed at 14 K for the x=0.75 samp le. The data may be explained due to a reduction in oxygen chain defec ts. Copyright (C) 1996 Elsevier Science Ltd