Speaker
Dr
Anders Bergman
(Uppsala University)
Description
We study the Fe/W(110) monolayer system through a
combination of first principles calculations and atomistic
spin dynamics simulations. We focus on the dispersion of
the spin waves parallel to the [001] direction. Our
results compare favorably with the experimental data of
Prokop et al. [Phys. Rev. Lett. 102, 177206], and
correctly capture a drastic softening of the magnon
spectrum, with respect to bulk bcc Fe. The suggested
shortcoming of the itinerant electron model, in particular
that given by density functional theory, is refuted. We
also demonstrate that finite temperature effects are
significant, and that atomistic spin dynamics simulations
represent a powerful tool with which to include these.
Primary author
Dr
Anders Bergman
(Uppsala University)
