Strong rejuvenation in a chiral-glass superconductor
A. Gardchareon, R. Mathieu, P. E. Jönsson, P. Nordblad
DOI 10.1103/PhysRevB.67.052505 · Physical Review B
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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.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 87 | Pressure not reported | onset |
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