Journal article
Anisotropy of superconducting Pb2Sr2(Y0.7Ca0.3)Cu3O8+δ and Pb2Sr2Y1-yCu3O8+δ
Abstract
The London-penetration-depth anisotropy ratio γ of Pb2Sr2(Y0.7Ca0.3)Cu3O8+δ and Ca-free Pb2Sr2Y1-yCu3O8+δ (y≊0.1) single crystals has been measured by the equilibrium torque magnetometry method. γ values are found to be in the range of 10 to 11 and are comparable to that of YBa2Cu3O7-δ rather than Bi2+xSr2Ca1-xCu2O8+δ although Pb2Sr2(Y0.7Ca0.3)Cu3O8+δ is structurally similar to both, with its c-axis lattice constant 30% larger than that of …
Authors
Chien TR; Datars WR; Xue JS; Fok MW; Greedan JE
Journal
Physical Review B, Vol. 50, No. 13, pp. 9627–9630
Publisher
American Physical Society (APS)
Publication Date
October 1, 1994
DOI
10.1103/physrevb.50.9627
ISSN
2469-9950