標題: Time Dependent Electric Fields Generated DC Currents in a Large Gate-Defined Open Dot
作者: Liu, Kai-Ming
Umansky, Vladimir
Hsu, Shih-Ying
電子物理學系
Department of Electrophysics
公開日期: 1-Nov-2010
摘要: We present the study of DC currents of an open dot generated from two time dependent electric fields in the absence of external bias Two electrical setups were applied. In one configuration. two fast oscillating voltages were applied on two side gates in the other one of the oscillating biases was directly applied to the source lead. The DC current as a function of frequency coupling strength and magnetic field was investigated The current is sinusoidally dependent with the phase shift and bilinearly dependent with the excitation voltage for both configurations However the current as a function of frequency coupling strength, and magnetic fields behaves differently in these two setups. The results indicate that the currents generated in different setups originate from different mechanisms and moreover not from any classical circuitry effect.
URI: http://dx.doi.org/10.1143/JJAP.49.114001
http://hdl.handle.net/11536/150197
ISSN: 0021-4922
DOI: 10.1143/JJAP.49.114001
期刊: JAPANESE JOURNAL OF APPLIED PHYSICS
Volume: 49
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