In relation to the previously reported discovery that a small excursion in the applied magnetic field has a much stronger effect on Field Cooled (FC) Bi2Sr2CaCu2O8+δ monocrystals than on Zero Field Cooled (ZFC) samples, we observed the evolution of the V-I characteristics for both preparations over several days. It is found that both FC and ZFC relax towards an \lqq equilibrium \rqq state. The V-I characteristic of this state is much more similar to the ZFC characteristic than to the FC one. Furthermore, relaxation times are much shorter for the ZFC samples (approximately 1 hour) than for the FC samples (several days). This is another experimental indication that the popular belief that a FC preparation results in the thermodynamical equilibrium state might be erroneous.
|Journal||Journal De Physique. IV : JP|
|Publication status||Published - Dec 1 1999|
|Event||Proceedings of the 1999 International Workshop on ELectronic Crystals (ECRYS-99) - La Colle-sur-Loup, FR|
Duration: May 31 1999 → Jun 5 1999
ASJC Scopus subject areas
- Physics and Astronomy(all)