ANISOTROPY OF SUPERCONDUCTING PB2SR2(Y0.7CA0.3)CU3O8-YCU3O8+DELTA(DELTA AND PB2SR2Y1)

Authors
CHIEN TR DATARS WR XUE JS FOK MW GREEDAN JE
Citation
Tr. Chien et al., ANISOTROPY OF SUPERCONDUCTING PB2SR2(Y0.7CA0.3)CU3O8-YCU3O8+DELTA(DELTA AND PB2SR2Y1), Physical review. B, Condensed matter, 50(13), 1994, pp. 9627-9630
Citations number
33
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
50
Issue
13
Year of publication
1994
Pages
9627 - 9630
Database
ISI
SICI code
0163-1829(1994)50:13<9627:AOSP>2.0.ZU;2-A
Abstract
The London-penetration-depth anisotropy ratio gamma of Pb2Sr2(Y0.7Ca0. 3)Cu3O8+delta and Ca-free Pb2Sr2Y1-yCu3O8+delta (y almost-equal-to 0.1 ) single crystals has been measured by the equilibrium torque magnetom etry method. Gamma values are found to be in the range of 10 to 11 and are comparable to that of YBa2Cu3O7-delta rather than Bi2+xSr2Ca1-xCu 2O8+delta although Pb2Sr2(Y0.7Ca0.3)Cu3O8+delta is structurally simila r to both, with its c-axis lattice constant 30% larger than that of YB a2Cu3O7-delta. The gamma of a Pb2Sr2(Sm0.5Eu0.5)Cu3O8+delta crystal wa s measured to be 13+/-3.