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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.
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页码：501 / 506
页数：6
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