Excitations in quantum Hall ferromagnet with strong Coulomb interaction

被引：3
|
作者：
Iordanski, SV [1 ]
Kashuba, A [1 ]
机构：
[1] Russian Acad Sci, LD Landau Theoret Phys Inst, Moscow 117334, Russia
来源：
JOURNAL OF SUPERCONDUCTIVITY | 2003年 / 16卷 / 04期
关键词：
quantum hall; Skyrmions; Coulomb interaction;
D O I：
10.1023/A:1025382427377
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The limit of the large Coulomb energy compare the cyclotron energy is considered. It is possible to relate the electron density with the analytical properties of one electron Green function and show that one electron gap exists at integer fillings of Landau level. The energy of collective excitations of plasmon type is calculated at small momenta. It is shown that the activation energy of Skyrmion-antiskyrmion pairs and the energy of spin waves is proportional to the cyclotron energy in this limit.
引用
收藏
页码：783 / 787
页数：5
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