Time: 3:30 PM, Friday, Dec. 3 2010.
Place: Sumwalt 102,

Speaker: Dr. O. Tartakivska
Title: Spin waves in rare earth multilayers: theory and experiment.

Abstract:
Results of new inelastic neutron scattering experiments on rare earth
multilayers are explained taking into account main physical interactions
that are presented in such structures, i.e., indirect exchange of RKKY and
Dzyaloshinsky-Moriya types and easy-plain anisotropy. It is shown, that
interdiffusion between two constituents plays an important role in the spin
wave dynamics.  Dispersive spin waves were unambiguously detected on the
application of a magnetic field as well. The results of theory and
experiments are in quantitative agreement.