QUANTUM HALL FERROMAGNETS

被引：18
|
作者：
HO, TL [1 ]
机构：
[1] OHIO STATE UNIV,DEPT PHYS,COLUMBUS,OH 43210
来源：
PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 06期
关键词：
D O I：
10.1103/PhysRevLett.73.874
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
It was pointed out recently that the nu = 1/m quantum Hall states in bilayer systems behave like easy plane quantum ferromagnets. We study the magnetotransport of these systems using their ''ferromagnetic'' properties and a novel spin-charge relation of their excitations. The general transport is a combination of the usual Hall transport and a time dependent transport with quantized time average. The latter is due to a phase slippage process in spacetime and is characterized by two topological constants.
引用
收藏
页码：874 / 877
页数：4
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