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Suppression of Standing Spin Waves in Low-Dimensional Ferromagnets
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Material Physics.ORCID iD: 0000-0003-4341-5663
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2011 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 107, no 3, 037202- p.Article in journal (Refereed) Published
Abstract [en]

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.
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Physical Sciences
URN: urn:nbn:se:kth:diva-37156DOI: 10.1103/PhysRevLett.107.037202ISI: 000292597400022ScopusID: 2-s2.0-79961095182OAI: diva2:432429
Swedish eā€Science Research Center

QC 20110803

QC 20150914

Available from: 2011-08-03 Created: 2011-08-02 Last updated: 2015-09-14Bibliographically approved

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