Quantum interference in artificial band structures

被引：52

作者：

Deutschmann, RA

Wegscheider, W ^{[1
]}

Rother, M

Bichler, M

Abstreiter, G

Albrecht, C

Smet, JH

机构：

[1] Tech Univ Munich, Walter Schottky Inst, D-85748 Garching, Germany

[2] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.86.1857

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetotransport experiments on two-dimensional electron systems with an atomically precise, one-dimensional potential modulation reveal striking quantum interference oscillations. Within a semiclassical framework, they are recognized either as self-interference along closed orbits, many of them rendered possible by magnetic breakdown between Fermi contour segments of the artificial band structure, or as interference-enhanced backscattering. The known commensurability oscillations appear as a special case of the latter mechanism.

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页码：1857 / 1860

页数：4

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