Nonadiabaticity and single-electron transport driven by surface acoustic waves

被引：67
|
作者：
Flensberg, K
Niu, Q
Pustilnik, M
机构：
[1] Niels Bohr Inst APG, Orsted Lab, DK-2100 Copenhagen, Denmark
[2] Univ Texas, Dept Phys, Austin, TX 78712 USA
[3] Danish Inst Fundamental Metrol, DK-2800 Lyngby, Denmark
来源：
PHYSICAL REVIEW B | 1999年 / 60卷 / 24期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRevB.60.R16291
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Single-electron transport driven by surface acoustic waves (SAW) through a narrow constriction, formed in a two-dimensional electron gas, is studied theoretically. Due to long-range Coulomb interaction, the tunneling coupling between the electron gas and the moving minimum of the SAW-induced potential rapidly decays with time. As a result, nonadiabaticity sets a limit for the accuracy of the quantization of acoustoelectric current. [S0163-1829(99)52448-X].
引用
收藏
页码：16291 / 16294
页数：4
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