Title :
Wide-band read/write characteristics of an ultra narrow track width video head using sputtered Fe-Si-Al alloy film
Author :
Saito, Kaz ; Shimizu, Tatushi ; Ishida, Hidenori
Author_Institution :
Nippon Mining Co., Ltd., Saitama, Japan
fDate :
9/1/1987 12:00:00 AM
Abstract :
Read/write performance of an ultra narrow track width (5μm) video head using a sputtered Fe-Si-Al alloy film in connection with high-coercivity metal powder tape is presented. Both the high output voltage (90nVo-p/μm.turn.m/s) and the wide-band reproduction sensitivity (3dB roll-off at 40MHz) have been demonstrated. This proves that an excellent isotropic high-frequency permeability has been realized in the alloy film core.
Keywords :
Magnetic recording/reading heads; Video recording; Ferrite films; Frequency; Insulation life; Magnetic cores; Magnetic films; Magnetic heads; Magnetic materials; Permeability; Substrates; Ultra wideband technology;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.1987.1065569
