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https://doi.org/10.1016/j.jmmm.2004.11.519
| Title: | Light scattering from spin wave excitations in a Co/CoPt exchange spring | Authors: | Crew, D.C. Stamps, R.L. Liu, H.Y. Wang, Z.K. Kuok, M.H. Ng, S.C. Barmak, K. Kim, J. Lewis, L.H. |
Keywords: | Exchange coupling-thin films Light scattering-Brillouin Spin waves Thin films-bilayer |
Issue Date: | Apr-2005 | Citation: | Crew, D.C., Stamps, R.L., Liu, H.Y., Wang, Z.K., Kuok, M.H., Ng, S.C., Barmak, K., Kim, J., Lewis, L.H. (2005-04). Light scattering from spin wave excitations in a Co/CoPt exchange spring. Journal of Magnetism and Magnetic Materials 290-291 PART 1 : 530-532. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jmmm.2004.11.519 | Abstract: | 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. © 2004 Elsevier B.V. All rights reserved. | Source Title: | Journal of Magnetism and Magnetic Materials | URI: | http://scholarbank.nus.edu.sg/handle/10635/98781 | ISSN: | 03048853 | DOI: | 10.1016/j.jmmm.2004.11.519 |
| Appears in Collections: | Staff Publications |
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