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13 August 1992 Measurement of the magnetic anisotropy energy constants for magneto-optical recording media
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Proceedings Volume 1663, Optical Data Storage; (1992) https://doi.org/10.1117/12.137546
Event: Optical Data Storage Topical Meeting, 1992, San Jose, CA, United States
Abstract
Measurement of the magneto-optical polar Kerr effect is performed on rare earth-transition metal (RE-TM) amorphous films using in-plane fields. From this measurement and the measurement of the saturation magnetization using a vibrating sample magnetometer (VSM), the magnetic anisotropy constants are determined. In this paper, we present the temperature dependence of the magnetic anisotropy in the range of -175 degree(s)C to 175 degree(s)C. The results show a dip in the anisotropy near magnetic compensation. This anomaly is explained based on the finite exchange coupling between the rare earth and transition metal subnetworks.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Roger A. Hajjar, Te-Ho Wu, Hong Fu, and Masud Mansuripur "Measurement of the magnetic anisotropy energy constants for magneto-optical recording media", Proc. SPIE 1663, Optical Data Storage, (13 August 1992); https://doi.org/10.1117/12.137546
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