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Spin current generation by adiabatic pumping in monolayer graphene

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3 Author(s)
Zhang, Qingtian ; Department of Physics, City University of Hong Kong, Tat Chee Avenue, Hong Kong ; Chan, K.S. ; Zijing Lin

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We propose a method of generating spin currents in monolayer graphene through adiabatic quantum pumping by two oscillating potentials. Spin splitting is induced in the graphene layer by ferromagnetic proximity. The pumped charge and spin currents are sensitive functions of the Fermi energy, which can thus be used to control the degree of polarization. The predicted pumped currents are measurable using the current technology. The proposed method is useful in the development of graphene spintronics.

Published in:

Applied Physics Letters  (Volume:98 ,  Issue: 3 )