Nonequilibrium ac Josephson effect in mesoscopic Nb-InAs-Nb junctions

被引：43

作者：

Lehnert, KW ^{[1
]}

Argaman, N

Blank, HR

Wong, KC

Allen, SJ

Hu, EL

Kroemer, H

机构：

[1] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Quantum Inst, Santa Barbara, CA 93106 USA

[3] Univ Calif Santa Barbara, QUEST, Santa Barbara, CA 93106 USA

[4] Univ Calif Santa Barbara, NSF Ctr Quantized Elect Struct, Santa Barbara, CA 93106 USA

[5] Univ Calif Santa Barbara, Inst Theoret Phys, Santa Barbara, CA 93106 USA

[6] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.82.1265

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Microwave irradiation of Nb-InAs-Nb junctions reveals frequency-doubled Josephson currents which persist to high temperatures, in the absence of a critical current. A nonequilibrium dynamical model, based on time-dependent Andreev bound states, successfully accounts for the resulting half-integer Shapiro, step and an enhancement in the conductance near zero bias. [S0031-9007(99)08420-3].

引用

页码：1265 / 1268

页数：4

共 18 条

[1]

ARGAMAN N, CONDMAT9709001

[2] Long-range coherence in a mesoscopic metal near a superconducting interface [J].

Courtois, H ;

Gandit, P ;

Mailly, D ;

Pannetier, B .

PHYSICAL REVIEW LETTERS, 1996, 76 (01) :130-133

[3] Superconductivity and the Josephson effect in a periodic array of Nb-InAs-Nb junctions [J].

Drexler, H ;

Harris, JGE ;

Yuh, EL ;

Wong, KC ;

Allen, SJ ;

Gwinn, EG ;

Kroemer, H ;

Hu, EL .

SURFACE SCIENCE, 1996, 361 (1-3) :306-310

[4] Absence of Shapiro-like steps in certain mesoscopic S-N-S junctions [J].

Harris, JGE ;

Argaman, N ;

Allen, SJ .

PHYSICAL REVIEW LETTERS, 1997, 78 (13) :2678-2678

[5] JOSEPHSON CURRENT IN LOW-DIMENSIONAL PROXIMITY SYSTEMS AND THE FIELD-EFFECT [J].

KRESIN, VZ .

PHYSICAL REVIEW B, 1986, 34 (11) :7587-7595

[6]

Kulik I. O., 1969, ZH EKSP TEOR FIZ, V57, p[1745, 944]

[7]

Lempitskii S. V., 1983, Soviet Physics - JETP, V58, P624

[8]

LIKHAREV KK, 1986, DYNAMICS JOSEPHSON J, P312

[9] INFLUENCE OF LOW-ENERGY AR-SPUTTERING ON THE ELECTRONIC-PROPERTIES OF INAS-BASED QUANTUM-WELL STRUCTURES [J].

MAGNEE, PHC ;

DENHARTOG, SG ;

VANWEES, BJ ;

KLAPWIJK, TM ;

VANDEGRAAF, W ;

BORGHS, G .

APPLIED PHYSICS LETTERS, 1995, 67 (24) :3569-3571

[10]

MORPURGO AF, 1998, THESIS U GRONINGEN

← 1 2 →