Physics – Condensed Matter – Materials Science
Scientific paper
2007-06-25
Physics
Condensed Matter
Materials Science
20 pages, including 6 figures and 1 table. 40 refs. To be published in Phys. Rev. B
Scientific paper
10.1103/PhysRevB.76.014425
We report a joint theoretical and experimental study focused on understanding the optical and magneto-optical properties of Co-based full-Heusler compounds. We show that magneto-optical spectra calculated within ab-initio density functional theory are able to uniquely identify the features of the experimental spectra in terms of spin resolved electronic transitions. As expected for 3d-based magnets, we find that the largest Kerr rotation for these alloys is of the order of 0.3o in polar geometry. In addition, we demonstrate that (i) multilayered structures have to be carefully handled in the theoretical calculations in order to improve the agreement with experiments, and (ii) combined theoretical and experimental investigations constitute a powerful approach to designing new materials for magneto-optical and spin-related applications
Continenza A.
D'Orazio F.
Freeman Arthur J.
Kim Minhyong
Lucari F.
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