Internal excitations and dissipative damping of quantum Hall Skyrmions

被引：16

作者：

Fertig, HA

Brey, L

Cote, R

MacDonald, AH

机构：

[1] UNIV AUTONOMA MADRID,CSIC,INST CIENCIA MAT,E-28049 MADRID,SPAIN

[2] UNIV SHERBROOKE,DEPT PHYS,SHERBROOKE,PQ J1K 2R1,CANADA

[3] INDIANA UNIV,DEPT PHYS,BLOOMINGTON,IN 47405

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 08期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.77.1572

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose an intrinsic maximum speed for dissipationless E cross B drift of Skyrmion quasiparticles in quantum Hall ferromagnets. When this speed is exceeded, Skyrmions can radiate spin waves by making internal excitations which allow total spin to be conserved. Our proposal is illustrated by a time-dependent Hartree-Fock approximation calculation of the excitation spectrum for a Skyrmion bound to an impurity.

引用

页码：1572 / 1575

页数：4

共 25 条

[1]

ABOULFATH M, UNPUB

[2] Evidence of Skyrmion excitations about nu=1 in n-modulation-doped single quantum wells by interband optical transmission [J].