OBSERVATION OF A SPIN-POLARIZATION INSTABILITY IN TILTED MAGNETIC-FIELDS

被引：4
|
作者：
KOCH, S [1 ]
HAUG, RJ [1 ]
VONKLITZING, K [1 ]
RAZEGHI, M [1 ]
机构：
[1] NORTHWESTERN UNIV,CTR QUANTUM DEVICES,DEPT EECS,EVANSTON,IL 60201
来源：
PHYSICA B | 1993年 / 184卷 / 1-4期
关键词：
D O I：
10.1016/0921-4526(93)90324-Y
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We report evidence for a phase transition between a spin-unpolarized state and a spin-polarized state in a two-dimensional electron gas in tilted magnetic fields. This effect is revealed in the magnetoresistance at mK temperatures, where the coincidence of the spin-resolved Landau levels N = 1 up and N = 0 down completely vanishes in samples of sufficiently high mobility, as predicted in recent theoretical studies. The effect is ascribed to electron-electron interactions.
引用
收藏
页码：76 / 80
页数：5
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