Regensburg 2002 – wissenschaftliches Programm

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MA: Magnetismus

MA 7: Spinabhängige Transportphänomene II

MA 7.11: Vortrag

Dienstag, 12. März 2002, 12:00–12:15, H22

Semiclassical Spin-dependent Transport in Inhomogeneous Magnetic Fields — •Tobias Paul and Klaus Richter — Institut für Theoretische Physik, Universität Regensburg 93040 Regensburg

We consider semiclassical methods to describe spin - dependent transport of electrons in model systems with inhomogeneous magnetic fields. For this purpose we make use of a recently introduced mapping formalism [1,2] which allows us to describe the discrete spin degree of freedom as a continous degree of freedom on a semiclassical level.

The resulting Hamiltonfunctions are analytically investigated, and numerical studies yield very promising results for the semiclassically calculated spin - dependent transmission coefficients.

[1] G. Stock and M. Thoss: Phys. Rev. Lett. 78, 578 (1997)

[2] M. Thoss and G. Stock: Phys. Rev. A 59, 64 (1999)