Berlin 2005 – wissenschaftliches Programm

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MA: Magnetismus

MA 15: Magnetische Kopplungsph
änomene / Exchange Bias

MA 15.9: Vortrag

Samstag, 5. März 2005, 16:00–16:15, TU H1028

Relativistic theory of indirect nuclear spin-spin coupling — •Hubert Ebert — Department Chemie, LMU, Butenandtstr. 5-13, 81377 München, Germany

A fully relativistic theory of indirect nuclear spin-spin coupling is presented that is based on the Green’s function formalism. Implementation by the use of the multiple scattering or Korringa-Kohn-Rostoker (KKR) method leads to a very flexible and numerically efficient approach. Results obtained for fcc-Cu are found in full accordance with previous non- or scalar-relativistic calculations and show essentially a behavior expected from Ruderman-Kittel theory for free-electron like systems. This does not hold for fcc-Pt for which in particular appreciable non-isotropic contributions have been obtained.