18 November 2008 Optical and magneto-optical properties of as-quenched CoFeSiB amorphous ribbons
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Proceedings Volume 7138, Photonics, Devices, and Systems IV; 713809 (2008) https://doi.org/10.1117/12.817973
Event: Photonics, Devices, and Systems IV, 2008, Prague, Czech Republic
Abstract
Surface optical and magneto-optical properties of as-quenched (AQ) Co66Fe4Si15B15 amorphous ribbons are studied using the magneto-optic vector magnetometry. Both in-plane magnetization components (longitudinal ML and transversal MT) detect typical uniaxial magnetic anisotropy with the easy axis close to the ribbon axis. Moreover, the total magnetization vector |M|/MS = (ML2)+ Mr2)0.5/MS indicates that coherent rotation of magnetization dominates. In the regions, where |M|/MS < 1, we observe the magnetic domains using the Kerr optical microscope. The fact that domain structure closely relates with the magnetic anisotropy is confirmed. Surface optical (refractive index) and magneto-optical (the Voight constant) properties of AQ ribbon are obtained by comparing the measured magneto-optical Kerr angles at different incident angles with the theoretical model based on the light propagation in layered anisotropic media.
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O. Zivotský, K. Hrabovská, A. Hendrych, K. Postava, L. Klimša, J. Pištora, "Optical and magneto-optical properties of as-quenched CoFeSiB amorphous ribbons", Proc. SPIE 7138, Photonics, Devices, and Systems IV, 713809 (18 November 2008); doi: 10.1117/12.817973; https://doi.org/10.1117/12.817973
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