The effect of pulse-modulated surface acoustic waves on acoustoelectric current quantization

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作者：
Kataoka, M. [1 ]
Ford, C.J.B. [1 ]
Barnes, C.H.W. [1 ]
Anderson, D. [1 ]
Jones, G.A.C. [1 ]
Beere, H.E. [1 ]
Ritchie, D.A. [1 ]
Pepper, M. [1 ]
机构：
[1] Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE, United Kingdom
来源：
Journal of Applied Physics | 2006年 / 100卷 / 06期
关键词：
The effect of pulse modulation of surface acoustic waves (SAWs) on the acoustoelectric current quantization through a one-dimensional channel is investigated. We found that the pulse modulation is effective in eliminating the effects of cross-talk and problems associated with reflected SAWs that are the sources of uncontrollable potential fluctuations in the channel. The drawback of this method is that the short pulse length (<650 ns) required to achieve cross-talk elimination degrades the quality of the quantized current plateaus. We calculate the expected current from calibrations of the transducer passband and acoustoelectric current as a function of transducer power and find similar behavior. © 2006 American Institute of Physics;
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