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Quantization accuracy of the acoustoelectric current

Title
Quantization accuracy of the acoustoelectric current
Authors
Chen X.-B.Chen X.-S.Gao J.
Ewha Authors
Xiang Bai Chen
Issue Date
2010
Journal Title
Solid State Communications
ISSN
0038-1098JCR Link
Citation
vol. 150, no. 41276, pp. 91 - 94
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
By deriving analytical formulae for the quantization accuracy of the acoustoelectric current, we reveal that: (1) the flatness of the current plateau for the typical present devices has reached the theoretical limit of about 100 ppm over a 1/1000 change of the gate voltage; (2) increasing the transport channel length, and counterintuitively, increasing the acoustic wavelength as well, would improve the quantization accuracy, and very promisingly up to 0.01 ppm as required for a quantum current standard. © 2009 Elsevier Ltd. All rights reserved.
DOI
10.1016/j.ssc.2009.09.045
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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