UNIVERSAL CONDUCTIVITY OF DIRTY BOSONS AT THE SUPERCONDUCTOR-INSULATOR TRANSITION

被引：122

作者：

SORENSEN, ES ^{[1
]}

WALLIN, M ^{[1
]}

GIRVIN, SM ^{[1
]}

YOUNG, AP ^{[1
]}

机构：

[1] INDIANA UNIV,DEPT PHYS,BLOOMINGTON,IN 47405

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.69.828

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The superconductor-insulator transition at zero temperature in two dimensions is studied by Monte Carlo simulations of interacting bosons (Cooper pairs) moving in a quenched random potential. We calculate the universal conductivity sigma* and the critical exponents at the superconductor-insulator transition. For the short-range repulsive case we find sigma* = (0.14 +/- 0.03)sigma(Q), where sigma(Q)-1 R(Q) = h/(2e)2 congruent-to 6.45 k-OMEGA and for long-range Coulomb interactions we find sigma* = (0.55 +/- 0.1)sigma(Q).

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页码：828 / 831

页数：4

相关论文

共 27 条

[1] QUANTUM CRITICAL PHENOMENA IN ONE-DIMENSIONAL BOSE SYSTEMS [J].

BATROUNI, GG ;

SCALETTAR, RT ;

ZIMANYI, GT .

PHYSICAL REVIEW LETTERS, 1990, 65 (14) :1765-1768

[2] NUMERICAL-STUDIES OF ISING SPIN-GLASSES IN 2, 3, AND 4 DIMENSIONS [J].

BHATT, RN ;

YOUNG, AP .

PHYSICAL REVIEW B, 1988, 37 (10) :5606-5614

[3] SPIN-GLASSES - EXPERIMENTAL FACTS, THEORETICAL CONCEPTS, AND OPEN QUESTIONS [J].

BINDER, K ;

YOUNG, AP .

REVIEWS OF MODERN PHYSICS, 1986, 58 (04) :801-976

[4] UNIVERSAL CONDUCTIVITY OF 2-DIMENSIONAL FILMS AT THE SUPERCONDUCTOR-INSULATOR TRANSITION [J].

CHA, MC ;

FISHER, MPA ;

GIRVIN, SM ;

WALLIN, M ;

YOUNG, AP .

PHYSICAL REVIEW B, 1991, 44 (13) :6883-6902

[5] CRITICAL INDEXES AND AMPLITUDES OF CLASSICAL PLANAR MODELS IN FINITE FIELD FOR TEMPERATURES GREATER THAN TC [J].

FERER, M ;

MOORE, MA ;

WORTIS, M .

PHYSICAL REVIEW B, 1973, 8 (11) :5205-5212

[6]

Fisher M. P. A., COMMUNICATION

[7]

FISHER MPA, 1989, PHYS REV B, V40, P546, DOI 10.1063/1.38820

[8] CORRESPONDENCE BETWEEN TWO-DIMENSIONAL BOSONS AND A BULK SUPERCONDUCTOR IN A MAGNETIC-FIELD [J].

FISHER, MPA ;

LEE, DH .

PHYSICAL REVIEW B, 1989, 39 (04) :2756-2759

[9] PRESENCE OF QUANTUM DIFFUSION IN 2 DIMENSIONS - UNIVERSAL RESISTANCE AT THE SUPERCONDUCTOR-INSULATOR TRANSITION [J].

FISHER, MPA ;

GRINSTEIN, G ;

GIRVIN, SM .

PHYSICAL REVIEW LETTERS, 1990, 64 (05) :587-590

[10] CHARGING EFFECTS AND QUANTUM COHERENCE IN REGULAR JOSEPHSON JUNCTION ARRAYS [J].

GEERLIGS, LJ ;

PETERS, M ;

DEGROOT, LEM ;

VERBRUGGEN, A ;

MOOIJ, JE .

PHYSICAL REVIEW LETTERS, 1989, 63 (03) :326-329