OBSERVATION OF RESONANT INTER-LANDAU-LEVEL TUNNELING IN A SUPERLATTICE

被引：23

作者：

MULLER, W

GRAHN, HT

HAUG, RJ

PLOOG, K

机构：

[1] Max-Planck-Institut fur Festkorperforschung, W-7000 Stuttgart 80

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.46.9800

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Inter-Landau-level tunneling between pure two-dimensional (2D) systems is investigated in a GaAs-AlAs superlattice. Resonances due to elastic as well as inelastic scattering up to DELTAn = 9 (n Landau-level index) are observed. The corresponding Landau fans can be simulated when conduction-band nonparabolicities are included. The observed polaron-induced renormalizations of Landau-level energies can be quantitatively de-scribed within the theory of 2D magnetopolarons. Resonant tunneling between Landau levels with the emission of zone-folded acoustic phonons is also present.

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页码：9800 / 9803

页数：4

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