Kondo effect in quantum dots coupled to ferromagnetic leads with noncollinear magnetizations

Details Kondo effect in quantum dots coupled to ferromagnetic leads with noncollinear magnetizations Kondo effect in quantum dots coupled to ferromagnetic leads with noncollinear magnetizations

2005-11-21

arxiv.org/abs/cond-mat/0511506v1

Physics

Condensed Matter

Other Condensed Matter

4 pages, 3 figures

Scientific paper

10.1103/PhysRevB.73.193312

Non-equilibrium Green's function technique has been used to calculate spin-dependent electronic transport through a quantum dot in the Kondo regime. The dot is described by the Anderson Hamiltonian and is coupled either symmetrically or asymmetrically to ferromagnetic leads, whose magnetic moments are noncollinear. It is shown that the splitting of the zero bias Kondo anomaly in differential conductance decreases monotonically with increasing angle between magnetizations, and for antiparallel configuration it vanishes in the symmetrical case while remains finite in the asymmetrical one.

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