Skyrmion liquid phase of the quantum ferromagnet in two dimensions

被引：10
作者：
Rodriguez, JP [1 ]
机构：
[1] Univ Autonoma Madrid, Inst Ciencia Mat, CSIC, E-28049 Madrid, Spain
[2] Calif State Univ Los Angeles, Dept Phys & Astron, Los Angeles, CA 90032 USA
来源：
EUROPHYSICS LETTERS | 1998年 / 42卷 / 02期
关键词：
D O I：
10.1209/epl/i1998-00230-6
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The two-dimensional quantum ferromagnet filled with a liquid of skyrmions is studied theoretically in the context of the quantum Hall effect near electronic filling factor nu = 1. A crossover between the classical ferromagnetic phase at nu = 1 and a classical paramagnetic phase at nu not equal 1 is obtained, which is consistent with recent Knight-shift measurements. A new collective mode associated with the skyrmion liquid that is of the cyclotron type is also identified.
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收藏
页码：197 / 202
页数：6
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