Determination of the Superconductor-Insulator Phase Diagram for One-Dimensional Wires

被引：44

作者：

Bollinger, A. T. ^{[1
]}

Dinsmore, R. C., III ^{[1
]}

Rogachev, A. ^{[1
]}

Bezryadin, A. ^{[1
]}

机构：

[1] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.101.227003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We establish the superconductor-insulator phase diagram for quasi-one-dimensional wires by measuring a large set of MoGe nanowires. This diagram is roughly consistent with the Chakravarty-Schmid-Bulgadaev phase boundary, namely, with the critical resistance being equal to R(Q)=h/4e(2). Deviations from this boundary for a small fraction of the samples prompt us to suggest an alternative phase diagram, which matches the data exactly. Transport properties of wires in the superconducting phase are dominated by phase slips, whereas insulating nanowires exhibit a weak Coulomb blockade behavior.

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相关论文

共 37 条

[1] Evidence for macroscopic quantum tunneling of phase slips in long one-dimensional superconducting Al wires [J].

Altomare, Fabio ;

Chang, A. M. ;

Melloch, Michael R. ;

Hong, Yuguang ;

Tu, Charles W. .

PHYSICAL REVIEW LETTERS, 2006, 97 (01)

[2] Quantum suppression of superconductivity in ultrathin nanowires [J].

Bezryadin, A ;

Lau, CN ;

Tinkham, M .

NATURE, 2000, 404 (6781) :971-974

[3] Quantum suppression of superconductivity in nanowires [J].

Bezryadin, Alexey .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2008, 20 (04)

[4] Dichotomy in short superconducting nanowires:: Thermal phase slippage vs. Coulomb blockade [J].

Bollinger, A. T. ;

Rogachev, A. ;

Bezryadin, A. .

EUROPHYSICS LETTERS, 2006, 76 (03) :505-511

[5] Effect of morphology on the superconductor-insulator transition in one-dimensional nanowires [J].

Bollinger, AT ;

Rogachev, A ;

Remeika, M ;

Bezryadin, A .

PHYSICAL REVIEW B, 2004, 69 (18) :180503-1

[6] Quantum fluctuations in thin superconducting wires of finite length -: art. no. 067007 [J].

Büchler, HP ;

Geshkenbein, VB ;

Blatter, G .

PHYSICAL REVIEW LETTERS, 2004, 92 (06)

[7]

BULGADAEV SA, 1984, JETP LETT+, V39, P315

[8] QUANTUM FLUCTUATIONS IN THE TUNNELING BETWEEN SUPERCONDUCTORS [J].

CHAKRAVARTY, S .

PHYSICAL REVIEW LETTERS, 1982, 49 (09) :681-684

[9] EVIDENCE FOR MACROSCOPIC QUANTUM TUNNELING IN ONE-DIMENSIONAL SUPERCONDUCTORS [J].

GIORDANO, N .

PHYSICAL REVIEW LETTERS, 1988, 61 (18) :2137-2140

[10] MACROSCOPIC QUANTUM TUNNELING AND RELATED EFFECTS IN A ONE-DIMENSIONAL SUPERCONDUCTOR [J].

GIORDANO, N ;

SCHULER, ER .

PHYSICAL REVIEW LETTERS, 1989, 63 (21) :2417-2420

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