RESISTIVITY INVESTIGATIONS OF PLASTIC VORTEX CREEP IN YBA2CU3O6.95 CRYSTALS

Authors
BONDARENKO AV SHKLOVSKIJ VA OBOLENSKII MA VOVK RV PRODAN AA PISSAS M NIARCHOS D KALLIAS G
Citation
Av. Bondarenko et al., RESISTIVITY INVESTIGATIONS OF PLASTIC VORTEX CREEP IN YBA2CU3O6.95 CRYSTALS, Physical review. B, Condensed matter, 58(5), 1998, pp. 2445-2447
Citations number
8
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
58
Issue
5
Year of publication
1998
Pages
2445 - 2447
Database
ISI
SICI code
0163-1829(1998)58:5<2445:RIOPVC>2.0.ZU;2-T
Abstract
The current-voltage characteristics (CVC's) of YBa2Cu3O6.95 Single cry stal with unidirectional twins were measured in external magnetic fiel d inclined with respect to twin planes under the angle 45 degrees. Cur rent, magnetic-field, and temperature dependences of the pinning poten tial U(J,B,T) and magnetic-field and temperature dependences of the de pinning critical current J(c)(B,T) were derived from the CVC's. It is shown that in high magnetic fields U(J,B,T) comes in terms with disloc ation-mediated plastic creep vortex lattice.