Enhanced quantized current driven by surface acoustic waves

被引：34

作者：

Ebbecke, J ^{[1
]}

Bastian, G ^{[1
]}

Blöcker, M ^{[1
]}

Pierz, K ^{[1
]}

Ahlers, FJ ^{[1
]}

机构：

[1] Phys Tech Bundesanstalt, D-38116 Braunschweig, Germany

来源：

APPLIED PHYSICS LETTERS | 2000年 / 77卷 / 16期

关键词：

D O I：

10.1063/1.1319190

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present the experimental realization of different approaches to increase the amount of quantized current which is driven by surface acoustic waves through split-gate structures in a two-dimensional electron gas. Samples with driving frequencies of up to 4.7 GHz have been fabricated without a deterioration of the precision of the current steps, and a parallelization of two channels with correspondingly doubled current values have been achieved. We discuss theoretical and technological limitations of these approaches for metrological applications as well as for quantum logics. (C) 2000 American Institute of Physics. [S0003-6951(00)05442-5].

引用

页码：2601 / 2603

页数：3

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