Suppression of 2D superconductivity by the magnetic field: Quantum corrections vs. the superconductor-insulator transition

被引：26

作者：

Gantmakher, VF ^{[1
]}

Ermolov, SN

Tsydynzhapov, GE

Zhukov, AA

Baturina, TI

机构：

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

[2] Russian Acad Sci, Inst Semicond Phys, Siberian Div, Novosibirsk 630090, Russia

来源：

JETP LETTERS | 2003年 / 77卷 / 08期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/1.1587177

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetotransport of superconducting Nd2 - xCexCuO4 + y (NdCeCuO) films is studied in the temperature interval 0.3-30 K. The microscopic theory of the quantum corrections to conductivity, both in the Cooper and in the diffusion channels, qualitatively describes the main features of the experiment, including the negative magnetoresistance in the high-field limit. Comparison with the model of the field-induced superconductor-insulator transition is included and a crossover between these two theoretical approaches is discussed. (C) 2003 MAIK "Nauka/Interperiodica".

引用

页码：424 / 428

页数：5

共 21 条

[1] SCALING THEORY OF LOCALIZATION - ABSENCE OF QUANTUM DIFFUSION IN 2 DIMENSIONS [J].

ABRAHAMS, E ;

ANDERSON, PW ;

LICCIARDELLO, DC ;

RAMAKRISHNAN, TV .

PHYSICAL REVIEW LETTERS, 1979, 42 (10) :673-676

[2]

CHARIKOVA TB, 2001, FIZ MET METALLOVED, V91, P46

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

FISHER, MPA .

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

[4] Superconducting fluctuations at low temperature [J].

Galitski, VM ;

Larkin, AI .

PHYSICAL REVIEW B, 2001, 63 (17)

[5] Observation of the parallel-magnetic-field-induced superconductor-insulator transition in thin amorphous InO films [J].

Gantmakher, VF ;

Golubkov, MV ;

Dolgopolov, VT ;

Shashkin, AA ;

Tsydynzhapov, GE .

JETP LETTERS, 2000, 71 (11) :473-476

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

Gantmakher, VF ;

Golubkov, MV ;

Dolgopolov, VT ;

Tsydynzhapov, GE ;

Shashkin, AA .

JETP LETTERS, 2000, 71 (04) :160-164

[8] Two-dimensional quantum interference contributions to the magnetoresistance of Nd2-xCexCuO4-δ single crystals [J].

Harus, GI ;

Ignatenkov, AN ;

Ponomarev, AI ;

Sabirzyanova, LD ;

Shelushinina, NG ;

Babushkina, NA .

JETP LETTERS, 1999, 70 (02) :97-104

[9] ONSET OF SUPERCONDUCTIVITY IN THE TWO-DIMENSIONAL LIMIT [J].

HAVILAND, DB ;

LIU, Y ;

GOLDMAN, AM .

PHYSICAL REVIEW LETTERS, 1989, 62 (18) :2180-2183

[10] MAGNETIC-FIELD-TUNED SUPERCONDUCTOR-INSULATOR TRANSITION IN 2-DIMENSIONAL FILMS [J].

HEBARD, AF ;

PAALANEN, MA .

PHYSICAL REVIEW LETTERS, 1990, 65 (07) :927-930

← 1 2 3 →