Abstract
The optimisation of magneto-optical data storage disk structures requires a knowledge of the optical and magneto-optical constants of the storage material. In this paper we present the optical (n + ik) and first order magneto-optical (Q1 + iQ2) constants for the rare earth-transition metal alloys: Tb23.5Fe72.5Co4.5, (Tb23.5Fe72.5Co4.5)89Pr11, Dy22Fe68.5Co9.5 and Dy28Fe52Co20. A combination of Kerr polarimetry and ellipsometry is used to evaluate these constants, which are then used to calculate the magneto-optic response as a function of magnetic layer thickness. A comparison between calculated and measured Kerr responses from both the air and substrate side of these structures reveals the self consistency of the modelling process and the validity of the determined constants.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
