Strong rejuvenation in a chiral-glass superconductor
Abstract
The glassy paramagnetic Meissner phase of a Bi2Sr2CaCu2Ox superconductor (x=8.18) is investigated by superconducting quantum interference device magnetometry, using “dc-memory” experiments employed earlier to study spin glasses. The temperature dependence of the zero-field-cooled and thermoremanent magnetization is recorded on reheating after specific cooling protocols, in which single or multiple halts are performed at constant temperatures. The “spin” states equilibrated during the halts are retrieved on reheating. The observed memory and rejuvenation effects are similar to those observed in Heisenberg-like spin glasses.
- Publication:
-
Physical Review B
- Pub Date:
- February 2003
- DOI:
- 10.1103/PhysRevB.67.052505
- arXiv:
- arXiv:cond-mat/0209180
- Bibcode:
- 2003PhRvB..67e2505G
- Keywords:
-
- 74.25.Ha;
- 74.72.Hs;
- Magnetic properties;
- Bi-based cuprates;
- Condensed Matter - Materials Science
- E-Print:
- REVTeX 4 style