Spin-Dependent Transport through Metallic System with Magnetic Impurities
B.J. Spisak, M. Wołoszyn and A. Paja
Faculty of Physics and Applied Computer Science, AGH - University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland
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The problem of spin-dependent transport of electrons through a metallic nanostructure is considered. The system consists of non-magnetic metal wire with two magnetic impurities and is connected to two ferromagnetic leads. The differential conductance is calculated by using the transfer matrix method. The spin polarization of the conductance is also obtained. It was found that this polarization is dependent on the spin configuration of magnetic impurities. This dependence can be controlled by the applied bias voltage.
DOI: 10.12693/APhysPolA.115.266
PACS numbers: 72.10.Fk, 72.25.Ba, 73.63.Nm