New Shaped Single-Pole Thin Film Head

Until now, the return-path core of single-pole thin film heads for perpendicular magnetic recording have been located at a finite distance from the main pole in the head scanning direc- tion. In this type of head, distortion of the reproduced waveform is introduced by the extra pulse appearing when...

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Bibliographic Details
Published in:IEEE translation journal on magnetics in Japan 1991-10, Vol.6 (10), p.835-841
Main Authors: Numazawa, J., Hayashi, N.
Format: Article
Language:English
Subjects:
Applied sciences
Broadcasting
Electronics
Exact sciences and technology
Magnetic cores
Magnetic films
Magnetic heads
Magnetic recording
Magnetics Society
Perpendicular magnetic recording
Prototypes
Recording and replay of audio and video signals
Shape
Storage and reproduction of information
Transistors
Citations: Items that this one cites
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Description
Summary:Until now, the return-path core of single-pole thin film heads for perpendicular magnetic recording have been located at a finite distance from the main pole in the head scanning direc- tion. In this type of head, distortion of the reproduced waveform is introduced by the extra pulse appearing when the return path core comes into direct contact with the medium. In order to eliminate this distortion, we developed a single-pole thin film head with a new shape, called a FiTR head (single-pole thin Film head with Transverse Return flux path core), with the return-path core set at a definite distance to one side in the track width direction. The recording field distribution and reproduction characteristics of the head were investigated in simulations and experiments. The new thin film head has high sensitivity and an excellent recording field distribution. The reproduced waveform of the head is free of distortion.
ISSN:0882-4959
2375-0545
DOI:10.1109/TJMJ.1991.4565264