MAGNETIZATION JUMP DUE TO THE FIRST-ORDER VORTEX LATTICE MELTING TRANSITION IN YBA2CU3OY SINGLE-CRYSTALS

Authors
ONODERA Y NISHIZAKI T KOBAYASHI N ASAOKA H TAKEI H
Citation
Y. Onodera et al., MAGNETIZATION JUMP DUE TO THE FIRST-ORDER VORTEX LATTICE MELTING TRANSITION IN YBA2CU3OY SINGLE-CRYSTALS, Physica. C, Superconductivity, 263(1-4), 1996, pp. 409-411
Citations number
12
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
263
Issue
1-4
Year of publication
1996
Pages
409 - 411
Database
ISI
SICI code
0921-4534(1996)263:1-4<409:MJDTTF>2.0.ZU;2-E
Abstract
We have studied the temperature dependence of the magnetization for YB a2Cu3Oy single crystals with different oxygen contents. As for the oxy genated samples, an anomalous magnetization jump is observed at a cert ain temperature T-j just below the irreversibility line. The temperatu re and angular dependences of the jump are consistent with the first-o rder vortex lattice melting transition theory. The magnetization jump is suppressed by strong disorder due to the oxygen deficiency.