EVIDENCE OF SURFACE SUPERCONDUCTIVITY IN 2H-NBSE2 SINGLE-CRYSTALS

Authors
DANNA G GAMMEL PL RAMIREZ AP YARON U OGLESBY CS BUCHER E BISHOP DJ
Citation
G. Danna et al., EVIDENCE OF SURFACE SUPERCONDUCTIVITY IN 2H-NBSE2 SINGLE-CRYSTALS, Physical review. B, Condensed matter, 54(9), 1996, pp. 6583-6586
Citations number
25
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
54
Issue
9
Year of publication
1996
Pages
6583 - 6586
Database
ISI
SICI code
0163-1829(1996)54:9<6583:EOSSI2>2.0.ZU;2-X
Abstract
We have probed the differential resistance in 2H-NbSe2 single crystals at very low currents. For fields applied perpendicular to the sample and in the range B-c2<B<(1.6-1.7)B-c2, the differential resistance is Ohmic but well below the usual normal-state differential resistance ob served at high currents. This deviation from the normal-state differen tial resistance is ascribed to surface superconductivity on the latera l surfaces.