I. Felner, U. Yaron, et al.
Physica C: Superconductivity and its applications
Magnetic measurements on a high-Tc superconductor YBa 2Cu3O7 reveal new spin-glass-like features. At low temperatures and low fields the irreversible part of the field-cooled magnetization Mirr rotates with the sample as a rigid entity. The rigidity is broken and part of Mirr disappears above an angle φ* which decreases with increasing temperature or field. This behavior resembles that of spin glasses and differs qualitatively from the behavior found for Nb.
I. Felner, U. Yaron, et al.
Physica C: Superconductivity and its applications
L. Klein, E.R. Yacoby, et al.
Physica C: Superconductivity and its applications
A.P. Malozemoff, L. Krusin-Elbaum, et al.
Physical Review B
M.W. McElfresh, Y. Yeshurun, et al.
Physica A: Statistical Mechanics and its Applications