Title :
Video Head Multi-Layer Amorphous Film
Author :
Hasegawa, T. ; Suyama, M. ; Shimada, Y.
Author_Institution :
Chichibu Research Lab., Showa Denko K. K.
fDate :
7/1/1985 12:00:00 AM
Abstract :
The electromagnetic conversion and other characteristics of heads fabricated using Co-Zr-Nb multilayer amorphous alloy films are reported. Heads were used in a VHS type VTR to measure the recording/reproduction characteristics, which, using metal tape (Hc = 1300 Oe), showed an output higher by 2 to 4 dB at 5 MHz than other head materials. Outputs were 0.25 mV (normal tape) and 0.44 mV (metal tape) at 5 MHz, for a track width of 24 ¿ and a gap length of 0.69 ¿, sufficient to enable use as a head for metal media.
Keywords :
Amorphous materials; Inorganic materials; Magnetic cores; Magnetic films; Magnetic heads; Magnetic materials; Magnetic multilayers; Magnetic recording; Sputtering; Video recording;
Journal_Title :
Magnetics in Japan, IEEE Translation Journal on
DOI :
10.1109/TJMJ.1985.4548824
