Experimental observation of coherent backscattering in open ballistic microstructures

被引：6
|
作者：
Katine, JA
Eriksson, MA
Westervelt, RM
Campman, KL
Gossard, AC
机构：
[1] HARVARD UNIV, DEPT PHYS, CAMBRIDGE, MA 02138 USA
[2] UNIV CALIF SANTA BARBARA, DEPT MAT, SANTA BARBARA, CA 93106 USA
来源：
SUPERLATTICES AND MICROSTRUCTURES | 1996年 / 20卷 / 03期
关键词：
weak localization; mesoscopic systems; ballistic transport;
D O I：
10.1006/spmi.1996.0086
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We report on observations of coherent backscattering in open devices consisting of a quantum point contact and two reflector gates. The devices are fabricated in a high-mobility two-dimensional electron gas system, and magnetotransport data are taken at a temperature of 385 mK. Unlike ballistic microstructures in which this effect has previously been measured, our devices are designed to yield many backscattered trajectories enclosing very similar areas. An array of these devices has been measured in order to average away magnetoconductance fluctuations. (C) 1996 Academic Press Limited
引用
收藏
页码：337 / 341
页数：5
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