MAGNETOTRANSPORT IN A CHAOTIC SCATTERING CAVITY WITH TUNABLE ELECTRON-DENSITY

被引：86

作者：

KELLER, MW

MILLO, O

MITTAL, A

PROBER, DE

SACKS, RN

机构：

[1] HEBREW UNIV JERUSALEM,RACAH INST PHYS,IL-91904 JERUSALEM,ISRAEL

[2] UNITED TECHNOL RES CTR,E HARTFORD,CT 06108

来源：

SURFACE SCIENCE | 1994年 / 305卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0039-6028(94)90943-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have measured the resistance versus magnetic field and Fermi energy for two stadium-shaped cavities in which chaotic scattering is expected. We fit the power spectra of the magnetoresistance fluctuations to semiclassical chaotic scattering theory and find a characteristic field which scales with cavity dimensions as predicted by classical simulations. Measurements of conductance versus Fermi energy indicate a significant contribution from short, non-chaotic paths. We have also studied the energy-averaged conductance as a function of magnetic field. We observe a ballistic weak localization effect similar to that predicted by recent calculations.

引用

页码：501 / 506

页数：6

共 10 条

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BARANGER HU, 1992, TRANSPORT PHENOMENA

[2]

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