SPIN-ORBIT SCATTERING AND MAGNETOCONDUCTANCE OF STRONGLY LOCALIZED-ELECTRONS

被引：47

作者：

MEDINA, E ^{[1
]}

KARDAR, M ^{[1
]}

机构：

[1] INTEVEP SA,CARACAS 1070A,VENEZUELA

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.66.3187

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The effect of a magnetic field on the tunneling probability of strongly localized electrons is calculated in the presence of spin-orbit scattering. Numerical (transfer matrix) and theoretical (replica analysis) arguments indicate a positive magnetoconductance, but no increase in the localization length. Universal and nonuniversal aspects of the tunneling probability distribution, and their relation to the symmetries of the Hamiltonian, are discussed.

引用

收藏

页码：3187 / 3190

页数：4

相关论文

共 23 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] APPLICABILITY OF SCALING DESCRIPTION TO THE DISTRIBUTION OF MESOSCOPIC FLUCTUATIONS [J].

ALTSHULER, BL ;

KRAVTSOV, VE ;

LERNER, IV .

PHYSICS LETTERS A, 1989, 134 (8-9) :488-492

[3] ABSENCE OF DIFFUSION IN CERTAIN RANDOM LATTICES [J].

ANDERSON, PW .

PHYSICAL REVIEW, 1958, 109 (05) :1492-1505

[4] WEAK LOCALIZATION IN THIN-FILMS - A TIME-OF-FLIGHT EXPERIMENT WITH CONDUCTION ELECTRONS [J].

BERGMANN, G .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1984, 107 (01) :1-58

[5] ORBITAL MAGNETOCONDUCTANCE IN THE VARIABLE-RANGE-HOPPING REGIME [J].

ENTINWOHLMAN, O ;

IMRY, Y ;

SIVAN, U .

PHYSICAL REVIEW B, 1989, 40 (12) :8342-8348

[6] THE ANDERSON TRANSITION IN 2 DIMENSIONS IN THE PRESENCE OF SPIN-ORBIT-COUPLING [J].

EVANGELOU, SN ;

ZIMAN, T .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1987, 20 (13) :L235-L240

[7] MAGNETOCONDUCTANCE IN THE VARIABLE-RANGE-HOPPING REGIME DUE TO A QUANTUM-INTERFERENCE MECHANISM [J].

FARAN, O ;

OVADYAHU, Z .

PHYSICAL REVIEW B, 1988, 38 (08) :5457-5465

[8] UNIVERSAL CONDUCTANCE FLUCTUATIONS IN METALS - EFFECTS OF FINITE TEMPERATURE, INTERACTIONS, AND MAGNETIC-FIELD [J].

LEE, PA ;

STONE, AD ;

FUKUYAMA, H .

PHYSICAL REVIEW B, 1987, 35 (03) :1039-1070

[9] DISORDERED ELECTRONIC SYSTEMS [J].

LEE, PA ;

RAMAKRISHNAN, TV .

REVIEWS OF MODERN PHYSICS, 1985, 57 (02) :287-337

[10] MAGNETIC-FIELD EFFECTS ON STRONGLY LOCALIZED-ELECTRONS [J].

MEDINA, E ;

KARDAR, M ;

SHAPIR, Y ;

WANG, XR .

PHYSICAL REVIEW LETTERS, 1990, 64 (15) :1816-1819