Scaling analysis of the magnetic field-tuned quantum transition in superconducting amorphous In-O films

被引：42

作者：

Gantmakher, VF ^{[1
]}

Golubkov, MV ^{[1
]}

Dolgopolov, VT ^{[1
]}

Tsydynzhapov, GE ^{[1
]}

Shashkin, AA ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow Oblast, Russia

来源：

JETP LETTERS | 2000年 / 71卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/1.568304

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We studied the magnetic field-tuned superconductor-insulator transition (SIT) in amorphous In-O films with different oxygen contents and, hence, different electron densities. Whereas the two-dimensional scaling behavior was confirmed for the states of the film near the zero-field SIT, the SIT scenario changed for the deeper states in the superconducting phase; in addition to the scaling function describing the conductivity of the fluctuation-induced Cooper pairs, the temperature-dependent contribution to the film resistance emerged. This contribution can originate from the conductivity of normal electrons. (C) 2000 MAIK "Nauka/Interperiodica".

引用

页码：160 / 164

页数：5

共 20 条

[1]

Bulaevskii L. N., 1986, Soviet Physics - Solid State, V28, P997

[2]

CHERVENAK JA, CONDMAT9909329

[3]

FISHER MPA, 1989, PHYS REV B, V40, P546, DOI [10.1103/PhysRevB.40.546, 10.1063/1.38820]

[4] QUANTUM PHASE-TRANSITIONS IN DISORDERED 2-DIMENSIONAL SUPERCONDUCTORS [J].

FISHER, MPA .

PHYSICAL REVIEW LETTERS, 1990, 65 (07) :923-926

[5] 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

[6] Destruction of localized electron pairs above the magnetic-field-driven superconductor-insulator transition in amorphous In-O films [J].

Gantmakher, VF ;

Golubkov, MV ;

Dolgopolov, VT ;

Tsydynzhapov, GE ;

Shashkin, AA .

JETP LETTERS, 1998, 68 (04) :363-369

[7]

GANTMAKHER VF, 1999, ANN PHYS-LEIPZIG, V8, P73

[8]

GANTMAKHER VF, 1996, SOV PHYS JETP, V82, P951

[9] IMPURITY-INDUCED PHASE-TRANSITION IN THE INTERACTING BOSE-GAS .1. ANALYTICAL RESULTS [J].

GOLD, A .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1983, 52 (01) :1-8

[10]

HANEIN Y, 1998, PHYS REV B, V58, P7520

← 1 2 →