Title :
Off-track spacing loss of shielded MR heads
Author :
Yuan, Samuel W. ; Bertram, H. Neal
Author_Institution :
Appl. Magnetics Corp., Goleta, CA, USA
fDate :
5/1/1994 12:00:00 AM
Abstract :
The side-reading of a finite track-width shielded MR head is investigated both analytically and numerically. The head field (potential) utilized in a reciprocity calculation is obtained, and its Fourier transform is derived in semi-analytic forms. The off-track MR head response to a longitudinally magnetized micro-track and finite-width track is calculated from these results. Estimations on off-track spacing loss are undertaken for two types of shielded MR heads: finite track-width flush MR sensor and shields, and finite-width MR sensor with infinitely wide shields
Keywords :
Fourier transforms; magnetic heads; magnetic leakage; magnetic shielding; magnetoresistive devices; Fourier transform; finite track-width; flush MR sensor; head field; infinitely wide shields; longitudinally magnetized micro-track; magnetic recording; off-track spacing loss; reciprocity calculation; shielded MR heads; side-reading; Fourier transforms; Magnetic analysis; Magnetic flux; Magnetic heads; Magnetic recording; Magnetic sensors; Magnetic shielding; Sensor systems; Transistors; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
