DIRECT OBSERVATION OF THE ELECTRON SPECTRAL-FUNCTION IN THE INTEGER AND FRACTIONAL QUANTUM HALL REGIMES BY RESONANT-TUNNELING

被引：10

作者：

BOEBINGER, GS

LEVI, AFJ

PASSNER, A

PFEIFFER, LN

WEST, KW

机构：

[1] AT and T Bell Laboratories, Murray Hill

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.47.16608

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Low-temperature current-voltage characteristics of a double-barrier resonant tunnel junction are used to directly measure the two-dimensional (2D) electron spectral function. Our data provide quantitative determination of the 2D density of states, including chemical potential and linewidth oscillations as a function of magnetic field up to 51 T. We also measure a chemical potential jump at 1/3 fractional filling of the lowest Landau level.

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页码：16608 / 16611

页数：4

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