On the quantization accuracy of the acoustoelectric current

Xiang-Bai Chen; Xiang-Song Chen; Jie Gao

doi:10.1016/j.ssc.2009.09.045

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arXiv · 0807.2586

On the quantization accuracy of the acoustoelectric current

Xiang-Bai Chen·Xiang-Song Chen·Jie Gao

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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 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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Xiang-Bai Chen, Xiang-Song Chen, Jie Gao. 2008-07-16. On the quantization accuracy of the acoustoelectric current. https://doi.org/10.1016/j.ssc.2009.09.045

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