Magneto-optical Kerr properties of Co-Ag-annealed granular films

Weimin Zheng; H. Wang; Song-You Wang; Liang-Yao Chen; Junhao Chu

doi:10.1117/12.408307

29 November 2000 Magneto-optical Kerr properties of Co-Ag-annealed granular films

Weimin Zheng, H. Wang, Song-You Wang, Liang-Yao Chen, Junhao Chu

Proceedings Volume 4086, Fourth International Conference on Thin Film Physics and Applications; (2000) https://doi.org/10.1117/12.408307
Event: 4th International Conference on Thin Film Physics and Applications, 2000, Shanghai, China

Abstract

A series of Co_xAg_100-x granular films was prepared by ion beam sputtering and annealed at 100 degree(s)C, 250 degree(s)C, 400 degree(s)C, 500 degree(s)C, respectively. The optical constants, the complex dielectric function and magneto- optical Kerr parameters were measured at room temperature. It was found that Kerr rotation and ellipticity with increasing of the Co content. For the samples Co₁₇Ag₈₃, the strong Kerr effect enhancement is observed around the Ag plasma edge. With the annealing temperature increasing, the enhancement peak shifted toward the low photon energy region. From the analysis of the numerical calculations, it is concluded that the magneto-optical Kerr effect enhancement is due to the presence of the steep plasma edge.

Citation Download Citation

Weimin Zheng, H. Wang, Song-You Wang, Liang-Yao Chen, and Junhao Chu "Magneto-optical Kerr properties of Co-Ag-annealed granular films", Proc. SPIE 4086, Fourth International Conference on Thin Film Physics and Applications, (29 November 2000); https://doi.org/10.1117/12.408307

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