TUNNELING INTO A 2-DIMENSIONAL ELECTRON LIQUID IN A WEAK MAGNETIC-FIELD

被引：41

作者：

ALEINER, IL ^{[1
]}

BARANGER, HU ^{[1
]}

GLAZMAN, LI ^{[1
]}

机构：

[1] AT&T BELL LABS,MURRAY HILL,NJ 07974

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.74.3435

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the spectral density function of a two-dimensional electron liquid in a weak magnetic field, filling factor ν1. A hydrodynamic model for low-energy excitations of the liquid is developed. It is found that even at ν1 the tunneling density of states exhibits a gap at low energies. Its width 2E0 depends on the strength of interaction only logarithmically, 2E0=(Latin small letter h with strokeωc/ν)ln(νe2/Latin small letter h with strokevF). The effects of temperature and disorder on the density of states are discussed. © 1995 The American Physical Society.

引用

页码：3435 / 3438

页数：4

共 17 条

[1] The Quantum Hall Effect,, (1990)
[2] Ashoori R.C., Lebens J.A., Bigelow N.P., Silsbee R.H., Phys. Rev. Lett., 64, (1990)
[3] Phys. Rev. B, 48, (1993)
[4] Eisenstein J.P., Pfeiffer L.N., West K.W., Phys. Rev. Lett., 69, (1992)
[5] Surf. Sci., 305, (1994)
[6] Yang S.-R.E., MacDonald A.H., Phys. Rev. Lett., 70, (1993)
[7] Hatsugai Y., Bares P.-A., Wen X.G., Phys. Rev. Lett., 71, (1993)
[8] He, Platzman P.M., Halperin B.I., Phys. Rev. Lett., 71, (1993)
[9] Johansson P., Kinaret J.M., Phys. Rev. Lett., 71, (1993)
[10] Efros A.L., Pikus F.G., Phys. Rev. B, 48, (1993)

← 1 2 →