Article ID Journal Published Year Pages File Type
1867457 Physics Letters A 2010 5 Pages PDF
Abstract

We propose that a magnetic quantum wire composed of magnetic and non-magnetic atomic sites can be used as a spin filter for a wide range of applied bias voltage. We adopt a simple tight-binding Hamiltonian to describe the model where the quantum wire is attached to two semi-infinite one-dimensional non-magnetic electrodes. Based on single particle Green's function formalism all the calculations which describe two-terminal conductance and current through the wire are performed numerically. Our exact results may be helpful in fabricating mesoscopic or nano-scale spin filter.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Physics and Astronomy (General)
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