Reentrant behavior in the superconducting phase-dependent resistance of a disordered two-dimensional electron gas

被引：24

作者：

denHartog, SG

vanWees, BJ

Klapwijk, TM

Nazarov, YV

Borghs, G

机构：

[1] UNIV GRONINGEN,CTR MAT SCI,NL-9747 AG GRONINGEN,NETHERLANDS

[2] DELFT UNIV TECHNOL,FAC APPL PHYS,NL-2628 CJ DELFT,NETHERLANDS

[3] DELFT UNIV TECHNOL,DELFT INST MICROELECT & SUBMICRON TECHNOL,NL-2628 CJ DELFT,NETHERLANDS

[4] INTERUNIV MICROELECT CTR,B-3030 LOUVAIN,BELGIUM

来源：

PHYSICAL REVIEW B | 1997年 / 56卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.56.13738

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have investigated the bias-voltage dependence of the phase-dependent differential resistance of a disordered T-shaped two-dimensional electron gas coupled to two superconducting terminals. The resistance oscillations first increase upon lowering the energy. For bias voltages below the Thouless energy, the resistance oscillations are suppressed and disappear almost completely at zero bias voltage. We find a qualitative agreement with the calculated reentrant behavior of the resistance and discuss quantitative deviations.

引用

收藏

页码：13738 / 13741

页数：4

相关论文

共 24 条

[1] Random scattering matrices and the circuit theory of Andreev conductances [J].

Argaman, N .

EUROPHYSICS LETTERS, 1997, 38 (03) :231-236

[2] EXCESS CURRENT IN MICROBRIDGES S-C-S AND S-C-N [J].

ARTEMENKO, SN ;

VOLKOV, AF ;

ZAITSEV, AV .

SOLID STATE COMMUNICATIONS, 1979, 30 (12) :771-773

[3] GIANT, BACKSCATTERING PEAK IN ANGLE-RESOLVED ANDREEV REFLECTION [J].

BEENAKKER, CWJ ;

MELSEN, JA ;

BROUWER, PW .

PHYSICAL REVIEW B, 1995, 51 (19) :13883-13886

[4] QUANTUM TRANSPORT IN SEMICONDUCTOR-SUPERCONDUCTOR MICROJUNCTIONS [J].

BEENAKKER, CWJ .

PHYSICAL REVIEW B, 1992, 46 (19) :12841-12844

[5] CONDUCTANCE FLUCTUATIONS, WEAK-LOCALIZATION, AND SHOT-NOISE FOR A BALLISTIC CONSTRICTION IN A DISORDERED WIRE [J].

BEENAKKER, CWJ ;

MELSEN, JA .

PHYSICAL REVIEW B, 1994, 50 (04) :2450-2457

[6] Resistive transport in a mesoscopic proximity superconductor [J].

Charlat, P ;

Courtois, H ;

Gandit, P ;

Mailly, D ;

Volkov, AF ;

Pannetier, B .

CZECHOSLOVAK JOURNAL OF PHYSICS, 1996, 46 :3107-3114

[7] Reentrance of the metallic conductance in a mesoscopic proximity superconductor [J].

Charlat, P ;

Courtois, H ;

Gandit, P ;

Mailly, D ;

Volkov, AF ;

Pannetier, B .

PHYSICAL REVIEW LETTERS, 1996, 77 (24) :4950-4953

[8] Giant Andreev backscattering through a quantum point contact coupled via a disordered two-dimensional electron gas to superconductors [J].

denHartog, SG ;

vanWees, BJ ;

Nazarov, YV ;

Klapwijk, TM ;

Borghs, G .

PHYSICAL REVIEW LETTERS, 1997, 79 (17) :3250-3253

[9] Transport in multiterminal normal-superconductor devices: Reciprocity relations, negative and nonlocal resistances, and reentrance of the proximity effect [J].

denHartog, SG ;

Kapteyn, CMA ;

vanWees, BJ ;

Klapwijk, TM ;

Borghs, G .

PHYSICAL REVIEW LETTERS, 1996, 77 (24) :4954-4957

[10] Sample-specific conductance fluctuations modulated by the superconducting phase [J].

denHartog, SG ;

Kapteyn, CMA ;

vanWees, BJ ;

Klapwijk, TM ;

vanderGraaf, W ;

Borghs, G .

PHYSICAL REVIEW LETTERS, 1996, 76 (24) :4592-4595