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Spin current through double quantum dots with spin- and time-dependent interdot coupling

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3 Author(s)
Wang, Haixia ; Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China ; Yin, Wen ; Fangwei Wang

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We analyze theoretically the characteristics of electron transport through double quantum dots between which time oscillating and spin-polarization-dependent tunneling occurs. General formulas for the time-averaged current (spin current and charge current) and its differential are obtained by Keldysh nonequilibrium, Green’s function, and the transport properties derived from those formulas, can be qualitatively explained by spin-dependent resonant tunneling images.

Published in:

Journal of Applied Physics  (Volume:109 ,  Issue: 5 )