ELECTRON-PHONON SCATTERING IN STRONG MAGNETIC-FIELDS AND THE TEMPERATURE SCALING BETWEEN QUANTUM HALL PLATEAUS

被引：41

作者：

ZHAO, HL

FENG, SC

机构：

[1] Department of Physics, University of California, Los Angeles

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.70.4134

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The electron-phonon scattering rate is calculated in a strong magnetic field for a two-dimensional electron gas moving in a smooth random potential within the framework of semiclassical approximation. This inelastic scattering rate is strongly influenced by the strong magnetic field and is found to be linear in temperature for a wide range of temperatures, corresponding to an effective reduction of the Debye temperature. Applying this result to the temperature scaling exponent kappa for the width of the transition region between quantum Hall effect plateaus, we argue that kappa = 3/7 is dictated by the inelastic scattering rate and the percolation length, instead of the localization length.

引用

页码：4134 / 4137

页数：4

共 21 条

[1] EFFECTS OF ELECTRON-ELECTRON COLLISIONS WITH SMALL ENERGY TRANSFERS ON QUANTUM LOCALIZATION [J].