Abstract
An approximated simple expression of MR head response was given for perpendicular double-layer media. The equation was derived by modifying Fan's equation so as to be of a nonintegral form. The validity was confirmed by comparisons with exact solutions of the Fan' equation, which resulted in errors of less than 10 % for practical applications of recent MR heads. Using the expression, the reciprocity theorem revealed that the measured transition length of perpendicular recording was extremely small, less than 10 nm.
Original language | English |
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Pages (from-to) | 2235-2237 |
Number of pages | 3 |
Journal | IEEE Transactions on Magnetics |
Volume | 35 |
Issue number | 5 PART 1 |
DOIs | |
Publication status | Published - 1999 |
Externally published | Yes |
Keywords
- Double-layer medium
- Mr head
- Perpendicular magnetic recording
- Reciprocity theorem
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering