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Proceedings Paper

Optical and magneto-optical properties of as-quenched CoFeSiB amorphous ribbons
Author(s): O. Zivotský; K. Hrabovská; A. Hendrych; K. Postava; L. Klimša; J. Pištora
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Paper 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.

Paper Details

Date Published: 18 November 2008
PDF: 6 pages
Proc. SPIE 7138, Photonics, Devices, and Systems IV, 713809 (18 November 2008); doi: 10.1117/12.817973
Show Author Affiliations
O. Zivotský, VSB-TU Ostrava (Czech Republic)
K. Hrabovská, VSB-TU Ostrava (Czech Republic)
A. Hendrych, VSB-TU Ostrava (Czech Republic)
K. Postava, VSB-TU Ostrava (Czech Republic)
L. Klimša, VSB-TU Ostrava (Czech Republic)
J. Pištora, VSB-TU Ostrava (Czech Republic)

Published in SPIE Proceedings Vol. 7138:
Photonics, Devices, and Systems IV
Pavel Tománek; Dagmar Senderáková; Miroslav Hrabovský, Editor(s)

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