Noninvasive determination of the ballistic-electron current distribution

被引：6
作者：
Tokura, Y
Honda, T
Tsubaki, K
Tarucha, S
机构：
[1] Nippon Telegraph and Telephone Corporation Basic Research Laboratories, Atsugi-Shi
来源：
PHYSICAL REVIEW B | 1996年 / 54卷 / 03期
关键词：
D O I：
10.1103/PhysRevB.54.1947
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Direct observation of the lateral current of ballistic electrons by probing with a small superconducting quantum interference device is reported. The current distribution near the end of a quantum wire shows collimation although over 30 subbands are occupied in the wire. Spreading of the collimated distribution corresponding to the transition from a ballistic to a diffusive regime is observed and is compared with simulations.
引用
收藏
页码：1947 / 1952
页数：6
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