Title :
Magneto-optical recording in Co/Pt multilayer and GdTbFe-based disks at 820, 647 and 458-nm wavelength
Author :
Zeper, W.B. ; Jongenelis, A.P.J. ; Jacobs, B.A.J. ; van Kesteren, H.W. ; Carcia, P.F.
Author_Institution :
Philips Research, Eindhoven, Netherlands
fDate :
9/1/1992 12:00:00 AM
Abstract :
The magnetooptical recording performance of Co/Pt and GdTbFe-based disks was compared at three wavelengths. At 820 and 647 nm, the carrier-to-noise ratio of the GdTbFe disks was higher (2-3 dB) due to a lower noise level. At 458-nm wavelength, Co/Pt performed 3 dB better than the GdTbFe disk. The crystalline microstructure of Co/Pt did not cause a higher noise level than that of GdTbFe
Keywords :
cobalt; gadolinium alloys; iron alloys; magnetic multilayers; magneto-optical recording; noise; platinum; terbium alloys; 458 nm; 647 nm; 820 nm; Co-Pt multilayer; GdTbFe disk; carrier-to-noise ratio; crystalline microstructure; magnetooptical recording performance; noise level; Disk recording; Magnetic anisotropy; Magnetic multilayers; Magnetooptic recording; Multilevel systems; Noise level; Optical recording; Optical refraction; Optical sensors; Signal to noise ratio;
Journal_Title :
Magnetics, IEEE Transactions on
