Light scattering from spin wave excitations in a Co/CoPt exchange spring

David Crew, Robert Stamps, H.Y. Liu, Z.K. Wang, M.H. Kuok, S.C. Ng, K. Barmak, J. Kim, L.H. Lewis

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


We have developed a theory of Brillouin light scattering (BLS) from spin wave excitations in non-collinear magnetisation structures. We compare the results of calculated spectra for scattering from the spiral state found in exchange-coupled hard/soft CoPt/Co bilayers during reversal with experimental data. Both the Stokes/anti-Stokes peak intensity ratio is described, as well as the asymmetry in peak frequency between the Stokes and anti-Stokes spectra. It is shown that the frequency asymmetry arises naturally in the presence of a spin spiral structure. (c) 2004 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)530-532
JournalJournal of Magnetism and Magnetic Materials
Issue number1
Publication statusPublished - 2005


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