Regensburg 2013 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 14: Micromagetic Simulation and Electron Theory of Magnetism

MA 14.9: Vortrag

Dienstag, 12. März 2013, 11:30–11:45, H23

Construction of transition matrix elements for the scattering of crystal electrons at magnons — •Michael Haag, Christian Illg, and Manfred Fähnle — Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569 Stuttgart, Germany

The scattering of crystal electrons at magnons in itinerant magnets is very important for the fields of spintronics and magnonics, and therefore an ab-initio treatment of these processes is highly desirable. The transition matrix elements for these scattering events are constructed in a second quantization formalism for crystal electron states which are represented by linear-muffin-tin-orbital basis functions. The exchange parameter appearing in these matrix elements is related to the exchange-correlation potential matrix of the spin-density functional theory. A comparison with the theory of electron-phonon scattering in magnets is made.