On the quantization accuracy of the acoustoelectric current

Details On the quantization accuracy of the acoustoelectric current On the quantization accuracy of the acoustoelectric current

2008-07-16

arxiv.org/abs/0807.2586v1

SolidStateCommunications150:91-94,2010

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, no figure

Scientific paper

10.1016/j.ssc.2009.09.045

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 100ppm 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 0.01ppm as required for a quantum current standard.

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