Title :
Write/read characteristics of magneto-optical disks
Author :
Sato, M. ; Tatsukawa, S. ; Niwa, H. ; Tsukane, N. ; Mitani, T. ; Toba, H.
Author_Institution :
Daicel Chemical Industries, Ltd., Himeji, Japan
fDate :
9/1/1987 12:00:00 AM
Abstract :
Amorphous films of TbFeCo and NdDyFeCo alloys were prepared on Polycarbonate pregrooved substrates and quartz glass surfaces by an electron beam evaporation. Kerr-rotation, magnetization, coercivity, and Curie temperature were studied on those films. Large Kerr rotation of 0.41 degree and low Curie temperature of 160°C were obtained for the (Nd33Dy67)37(Fe75Co25)63. Studies on write/read characteristics revaled that the compensation composition of TbFeCo was significantly advantage for magneto-optical data storage. It was found that the NdDyFeCo was useful for the high data transfer rate recording on the magneto-optical memory.
Keywords :
Magnetooptic memories; Amorphous materials; Coercive force; Electron beams; Glass; Iron; Magnetization; Magnetooptic recording; Memory; Neodymium; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.1987.1065582
