Vortex pinning/dynamics in YBCO films with J(c)(77 K)> 3 center dot 10(6) A/cm(2) studied by direct transport measurements

Authors
Pan, VM Kasatkin, AL Flis, VS Komashko, VA Svetchnikov, VL Pronin, AV Snead, CL Suenaga, M Zandbergen, HW
Citation
Vm. Pan et al., Vortex pinning/dynamics in YBCO films with J(c)(77 K)> 3 center dot 10(6) A/cm(2) studied by direct transport measurements, J L TEMP PH, 117(5-6), 1999, pp. 1537-1541
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF LOW TEMPERATURE PHYSICS
ISSN journal
00222291 → ACNP
Volume
117
Issue
5-6
Year of publication
1999
Pages
1537 - 1541
Database
ISI
SICI code
0022-2291(199912)117:5-6<1537:VPIYFW>2.0.ZU;2-9
Abstract
Critical current density, J(c), is studied for highly biaxially-oriented YB CO thin films with J(c)(77 K) > 3 MA/cm(2) in a range of magnetic fields, t emperatures, angles between magnetic field vector and film c-azis. J(c)(H, theta) is shown to be dominated by vortex interaction with high density (> 10(11) lines/cm(2)) of linear pins - edge dislocations. A model is develope d to describe different vortex arrays behavior in the presence of two-dimen sional square network of linear pins.