DocumentCode :
957418
Title :
Thermomagnetic writing in Gd-Co sputtered films
Author :
Matsushita, S. ; Sunago, K. ; Sakurai, Y.
Author_Institution :
University of Osaka, Toyonaka, Osaka, Japan
Volume :
11
Issue :
5
fYear :
1975
fDate :
9/1/1975 12:00:00 AM
Firstpage :
1109
Lastpage :
1111
Abstract :
A model for thermomagnetic writing in Gd-Co sputtered films at its compensation temperature is described. In the vicinity of the compensation temperature, the films have rectangular hysteresis loops with large values of coercive force. Spots are thermomagnetically written and erased by using a He-Ne laser in conjunction with an external magnetic field, and a diameter approximately of 
m is achieved. Photographs of spots written thermomagnetically are shown. The written domains are circular and clear in shape, and are stable. Temperature dependences of coercive force in Gd-Co sputtered films, and characters of spot diameter as a function of applied magnetic field and writing laser power are reported.
m is achieved. Photographs of spots written thermomagnetically are shown. The written domains are circular and clear in shape, and are stable. Temperature dependences of coercive force in Gd-Co sputtered films, and characters of spot diameter as a function of applied magnetic field and writing laser power are reported.Keywords :
Magnetooptic memories; Coercive force; Laser beams; Magnetic anisotropy; Magnetic field measurement; Magnetic fields; Magnetic films; Magnetic hysteresis; Perpendicular magnetic anisotropy; Temperature measurement; Writing;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.1975.1058947
Filename :
1058947
Link To Document :
