Gate-controllable spin battery

Wen Long; Qing-Feng Sun, F.; Hong Guo; Jian Wang
August 2003
Applied Physics Letters;8/18/2003, Vol. 83 Issue 7, p1397
Academic Journal
We propose a gate-controllable spin-battery for spin current. The spin battery consists of a lateral double quantum dot under a uniform magnetic field. A finite dc spin current is driven out of the device by controlling a set of gate voltages. Spin current can also be delivered in the absence of charge current. The proposed device should be realizable using present technology at low temperature. © 2003 American Institute of Physics.


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