A COMPARATIVE-STUDY OF MAGNETIC-RELAXATION IN YBA2CU3-XFEXO7-Y SINGLE-CRYSTALS

Authors
LAN MD LIU JZ SHELTON RN
Citation
Md. Lan et al., A COMPARATIVE-STUDY OF MAGNETIC-RELAXATION IN YBA2CU3-XFEXO7-Y SINGLE-CRYSTALS, Applied physics. A, Solids and surfaces, 56(4), 1993, pp. 381-384
Citations number
16
Journal title
Applied physics. A, Solids and surfaces → ACNP
ISSN journal
07217250
Volume
56
Issue
4
Year of publication
1993
Pages
381 - 384
Database
ISI
SICI code
0721-7250(1993)56:4<381:ACOMIY>2.0.ZU;2-G
Abstract
The zero-field-cooled magnetization relaxation has been studied over w ide temperature and field ranges on iron-doped YBa2Cu3O7-y single crys tals. The relationship between the twin boundary density, which depend s on the iron composition, and the pinning strength of the flux lines is determined systematically. For magnetic fields up to 1 T the induct ive critical current density decreases as the iron composition increas es. The Bean critical state model and the Anderson-Kim thermally activ ated flux-creep model are utilized to analyze and interpret the experi mental results.