51. Off-track spacing loss of shielded MR heads
- Author
-
Yuan, Samuel W. and Bertram, H. Neal
- Subjects
Magnetic shielding -- Research ,Magnetic recorders and recording -- Heads ,Magnetic media -- Analysis ,Business ,Electronics ,Electronics and electrical industries - 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.
- Published
- 1994