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|Title:||Pumping current in a quantum dot by an oscillating magnetic field|
|Source:||Zhao, Y.Z.,Li, H.,Li, B. (2007-09-30). Pumping current in a quantum dot by an oscillating magnetic field. International Journal of Modern Physics B 21 (23-24) : 4284-4288. ScholarBank@NUS Repository.|
|Abstract:||We investigate spin and charge current through a quantum dot pumped by a time-varying magnetic field. Using the density matrix method, quantum rate equations for the electronic occupation numbers in the quantum dot are obtained and solved in the stationary state limit for a wide set of parameters. Both charge and spin currents are expressed explicitly in terms of several relevant parameters and analyzed in detail. The results suggest a way of optimizing experimental parameters to obtain an maximal spin current without the charge current flow. © World Scientific Publishing Company.|
|Source Title:||International Journal of Modern Physics B|
|Appears in Collections:||Staff Publications|
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