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(Pt/Co/Pt/Ni) Multilayers for Novel Magneto-Optical Recording Media |
Journal of Magnetics, Volume 1, Number 2, 31 Dec 1996, Pages 86-89 |
G Srinivas(Department of Physics, Korea Advanced Institute of Technology), sung-Chul Shin(Department of Physics, Korea Advanced Institute of Technology) |
Abstract |
The dc magnetron sputter deposited (Pt/Co/Pt/Ni) multilayers which exhibited Curie temperatures in the range of 150-300℃ were studied as possible alternative multilayers for magneto-optical recording to the widely studied Co/Pt, whose Curie temperatures are in the range of 200~400℃. The Coercivities of these multilayers were between 450 Oe and 800 Oe. These multilayers exhibited comparable magnetic and magneto-optical properties to Co/Pt multilayers with enhancement of the Kerr rotation at lower wavelengths and negligible Kerr ellipticity over a wide range of the spectrum (4000~7000 Å). |
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