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Magneto-optical recording on CoPtRe alloy films as a novel material

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5 Author(s)
Y. Takeda ; Nat. Res. Inst. for Metals, Ibaraki, Japan ; T. Umezawa ; K. Chiba ; H. Shoji
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Magneto-optical (MO) disks using CoPtRe ternary alloy films have been investigated as a novel recording material for a blue laser recording. For various types of disk structure, the Kerr rotation, the Kerr ellipticity, and the figure of merit were calculated and an optimum structure was estimated. Magneto-optical recordings were made on a CoPtRe MO disk at wavelengths of 830 and 530 nm. The recording properties were almost equivalent to those for Co/Pt multilayers

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IEEE Transactions on Magnetics  (Volume:35 ,  Issue: 4 )