PHASE-TRANSITION AT T SIMILAR-TO 600K AND METASTABLE STATES OF SINGLE-CRYSTALS BI2SR2CACU2O8+X

Authors
ROMANENKO AI ANIKEEVA OB KOZEEVA LP PAEK UH
Citation
Ai. Romanenko et al., PHASE-TRANSITION AT T SIMILAR-TO 600K AND METASTABLE STATES OF SINGLE-CRYSTALS BI2SR2CACU2O8+X, Physica. C, Superconductivity, 282, 1997, pp. 1157-1158
Citations number
6
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
282
Year of publication
1997
Part
3
Pages
1157 - 1158
Database
ISI
SICI code
0921-4534(1997)282:<1157:PATS6A>2.0.ZU;2-7
Abstract
The temperature dependence of the resistivity rho(T) of single-crystal s Bi2Sr2CaCu2O8+x has been measured from 77 to 930 K. An anomaly in th e resistivity is observed at T-600 It. It was found that the low resis tance state (T-c=77 K) is metastable at T<500 K. It relaxes to a stabl e high resistance state (T-c=91 K). The superconductivity transition t emperature T-c, rho and rho(T)(c)/rho(T)(ab) all increase during this relaxation process.