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arXiv · 1203.1249

Magnetic-non-magnetic superlattice chain with external electric field: Spin transport and the selective switching effect

Moumita Dey·Santanu K. Maiti·S. N. Karmakar
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Abstract

Based on Green's function formalism, the existence of multiple mobility edges in a one-dimensional magnetic-non-magnetic superlattice geometry in presence of external electric field is predicted, and, it leads to the possibility of getting a metal-insulator transition at multiple values of Fermi energy. The role of electric field on electron localization is discussed for different arrangements of magnetic and non-magnetic atomic sites in the chain. We also analyze that the model quantum system can be used as a perfect spin filter for a wide range of energy.

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Moumita Dey, Santanu K. Maiti, S. N. Karmakar. 2012-03-06. Magnetic-non-magnetic superlattice chain with external electric field: Spin transport and the selective switching effect. https://arxiv.org/abs/1203.1249

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