Surface barrier dominated transport in NbSe2

Citation
Y. Paltiel et al., Surface barrier dominated transport in NbSe2, PHYS REV B, 58(22), 1998, pp. R14763-R14766
Citations number
23
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
58
Issue
22
Year of publication
1998
Pages
R14763 - R14766
Database
ISI
SICI code
0163-1829(199812)58:22<R14763:SBDTIN>2.0.ZU;2-V
Abstract
Transport current distribution in clean 2H-NbSe2 crystals is studied by mea suring the self-induced magnetic field across the sample. Below T-c most of the current flows at the edges of the crystals due to strong surface barri ers, which are found to dominate the transport properties and the resistive transition. The measured critical current is determined by the critical cu rrent for vortex penetration through the surface barrier rather than by bul k pinning. [S0163-1829(98)51446-4].