Strong rejuvenation in a chiral-glass superconductor

Details Strong rejuvenation in a chiral-glass superconductor Strong rejuvenation in a chiral-glass superconductor

2002-09-07

arxiv.org/abs/cond-mat/0209180v1

Phys. Rev. B 67, 052505 (2003)

Physics

Condensed Matter

Materials Science

REVTeX 4 style; 5 pages, 5 figures

Scientific paper

10.1103/PhysRevB.67.052505

The glassy paramagnetic Meissner phase of a Bi$_2$Sr$_2$CaCu$_2$O$_x$ superconductor ($x$ = 8.18) is investigated by squid magnetometry, using ``dc-memory'' experiments employed earlier to study spin glasses. The temperature dependence of the zero-field-cooled and thermo-remanent magnetization is recorded on re-heating 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 re-heating. The observed memory and rejuvenation effects are similar to those observed in Heisenberg-like spin glasses.

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