Suppression of Standing Spin Waves in Low-Dimensional Ferromagnets
2011 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 107, no 3, 037202- p.Article in journal (Refereed) Published
We examine the experimental absence of standing spin wave modes in thin magnetic films, by means of atomistic spin dynamics simulations. Using Co on Cu(001) as a model system, we demonstrate that by increasing the number of layers, the optical branches predicted from adiabatic first-principles calculations are strongly suppressed, in agreement with spin-polarized electron energy loss spectroscopy measurements reported in the literature. Our results suggest that a dynamical analysis of the Heisenberg model is sufficient in order to capture the strong damping of the standing modes.
Place, publisher, year, edition, pages
2011. Vol. 107, no 3, 037202- p.
IdentifiersURN: urn:nbn:se:kth:diva-37156DOI: 10.1103/PhysRevLett.107.037202ISI: 000292597400022ScopusID: 2-s2.0-79961095182OAI: oai:DiVA.org:kth-37156DiVA: diva2:432429
FunderSwedish e‐Science Research Center
QC 201509142011-08-032011-08-022015-09-14Bibliographically approved