Spin wave excitations in exchange-coupled [Co/Pd]-NiFe films with tunable tilting of the magnetization
2013 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 87, no 14, 144426- p.Article in journal (Refereed) Published
Brillouin light scattering was applied to measure the evolution of spin waves in exchange-coupled [Co/Pd]-NiFe films with out-of-plane/in-plane magnetic anisotropy. Tunable tilting of the magnetization has important effects on the spin wave frequency gap: a substantial increase is observed with decreasing the soft NiFe thickness, while seemingly insignificant tilting angles cause a strong reduction with respect to a film with only the hard [Co/Pd] component. The spin wave frequency is reproduced also in samples, with increased thickness of the upper Pd layer, where a sudden modification in the tilting at the hard/soft interface is caused by the weakening of interlayer exchange.
Place, publisher, year, edition, pages
2013. Vol. 87, no 14, 144426- p.
Field, Multilayer, Torque, Scattering, Surface
IdentifiersURN: urn:nbn:se:kth:diva-123429DOI: 10.1103/PhysRevB.87.144426ISI: 000318511000005ScopusID: 2-s2.0-84876968405OAI: oai:DiVA.org:kth-123429DiVA: diva2:626854
FunderSwedish Foundation for Strategic Research Swedish Research CouncilKnut and Alice Wallenberg Foundation
QC 201306102013-06-102013-06-102013-06-10Bibliographically approved