Evidence of surface superconductivity in 2H-NbSe2 single crystals

被引：23

作者：

DAnna, G

Gammel, PL

Ramirez, AP

Yaron, U

Oglesby, CS

Bucher, E

Bishop, DJ

机构：

[1] Bell Laboratories, Lucent Technologies, Murray Hill

来源：

PHYSICAL REVIEW B | 1996年 / 54卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.54.6583

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 observed at high currents. This deviation from the normal-state differential resistance is ascribed to surface superconductivity on the lateral surfaces.

引用

页码：6583 / 6586

页数：4

共 25 条

[1]

ABRIKOSOV AA, 1965, SOV PHYS JETP-USSR, V20, P480

[2]

ASLAMAZOV LG, 1968, FIZ TVERD TELA+, V10, P875

[3] THEORY OF MOTION OF VORTICES IN SUPERCONDUCTORS [J].

BARDEEN, J ;

STEPHEN, MJ .

PHYSICAL REVIEW, 1965, 140 (4A) :1197-+

[4] ANOMALIES IN FREE FLUX-FLOW HALL-EFFECT [J].

BHATTACHARYA, S ;

HIGGINS, MJ ;

RAMAKRISHNAN, TV .

PHYSICAL REVIEW LETTERS, 1994, 73 (12) :1699-1702

[5] DYNAMICS OF A DISORDERED FLUX LINE LATTICE [J].

BHATTACHARYA, S ;

HIGGINS, MJ .

PHYSICAL REVIEW LETTERS, 1993, 70 (17) :2617-2620

[6] VORTICES IN HIGH-TEMPERATURE SUPERCONDUCTORS [J].

BLATTER, G ;

FEIGELMAN, MV ;

GESHKENBEIN, VB ;

LARKIN, AI ;

VINOKUR, VM .

REVIEWS OF MODERN PHYSICS, 1994, 66 (04) :1125-1388

[7]

Bulaevskii L. N., 1976, Soviet Physics - Uspekhi, V18, P514, DOI 10.1070/PU1975v018n07ABEH004892

[8] EFFECTS OF TRANSPORT CURRENT AND COLUMNAR DEFECTS ON THE RF PENETRATION DEPTH OF NBSE2 [J].

CHUNG, M ;

KUO, YK ;

XU, ZG ;

DELONG, LE ;

BRILL, JW ;

BUDHANI, RC .

PHYSICAL REVIEW B, 1994, 50 (02) :1329-1332

[9] FLUX-LINE RESPONSE IN 2H-NBSE2 INVESTIGATED BY MEANS OF THE VIBRATING SUPERCONDUCTOR METHOD [J].

DANNA, G ;

ANDRE, MO ;

BENOIT, W ;

RODRIGUEZ, E ;

RODRIGUEZ, DS ;

LUZURIAGA, J ;

WASCZAK, JV .

PHYSICA C, 1993, 218 (1-2) :238-244

[10]

de Gennes P. G., 1966, SUPERCONDUCTIVITY ME

← 1 2 3 →