SUPPRESSION OF THE LANDAU-LEVEL COINCIDENCE - A PHASE-TRANSITION IN TILTED MAGNETIC-FIELDS

被引：60

作者：

KOCH, S

HAUG, RJ

VONKLITZING, K

RAZEGHI, M

机构：

[1] MAX PLANCK INST FESTKORPERFORSCH,W-7000 STUTTGART 1,GERMANY

[2] NORTHWESTERN UNIV,CTR QUANTUM DEVICES,DEPT EECS,EVANSTON,IL 60208

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.47.4048

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetotransport studies of GaxIn1-xAs/InP heterostructures in strong parallel magnetic fields at mK temperatures reveal a suppression of the coincidence of two Landau levels with opposite spin at filling factor 2. This phenomenon is explained by the occurrence of a phase transition from a spin-unpolarized state (at small tilt angles) to a spin-polarized state (at large tilt angles).

引用

页码：4048 / 4051

页数：4

共 12 条

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