Effects of electron-electron interactions on the integer quantum Hall transitions

被引：74

作者：

Lee, DH ^{[1
]}

Wang, ZQ ^{[1
]}

机构：

[1] BOSTON UNIV,DEPT PHYS,BOSTON,MA 02215

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.76.4014

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the effects of the electron-electron interaction on the critical properties of the plateau transitions in the integer quantum Hall effect. We find the renormalization group dimension associated with short-range interactions to be -0.66 +/- 0.04. Thus the noninteracting fixed point (characterized z = 2 and v approximate to 2.3) is stable. For the Coulomb interaction, we find the correlation effect is a marginal perturbation at a Hartree-Fock fixed point (z = 1, v approximate to 2.3) by dimension counting. Further calculations are needed to determine its stability upon loop corrections.

引用

页码：4014 / 4017

页数：4

共 18 条

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