ELECTRON SPECTRAL-FUNCTION OF AN INTERACTING 2-DIMENSIONAL ELECTRON-GAS IN A STRONG MAGNETIC-FIELD

被引：57

作者：

HATSUGAI, Y

BARES, PA

WEN, XG

机构：

[1] Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.71.424

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The electron spectral function of a 2D interacting electron system in a strong magnetic field is found to exhibit an energy gap at arbitrary filling fractions. In general, this gap is larger than the energy cost associated with a charge e excitation. At v = 1/2 a numerical estimate of the tunneling gap is DELTA(tun) = (0.3 +/- 0.1)e2/epsilonl(B) for the Coulomb interaction.

引用

页码：424 / 427

页数：4

共 13 条

[1] EQUILIBRIUM TUNNELING FROM THE 2-DIMENSIONAL ELECTRON-GAS IN GAAS - EVIDENCE FOR A MAGNETIC-FIELD-INDUCED ENERGY-GAP [J].