Nonadiabaticity and single-electron transport driven by surface acoustic waves

被引：68

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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