DocumentCode :
1486788
Title :
On the readback resolution of the single pole heads
Author :
Feng, Xiang-Jun ; Zhang, Jiang-ling
Author_Institution :
Dept. of Comput. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China
Volume :
24
Issue :
6
fYear :
1988
fDate :
11/1/1988 12:00:00 AM
Firstpage :
2603
Lastpage :
2605
Abstract :
A theory is proposed to clarify contradictory results on the readback resolution of a single-pole head when it is combined with the double-layer perpendicular recording media. The method starts by examining the magnetization distribution inside the read head. The general reciprocity principle is rederived from a series of reciprocity theorems developed many years ago for ferromagnetism, and another kind of reciprocity principle relating the readback voltage directly the magnetization state in the read head is introduced. A novel algorithm is developed for analyses based on the principles, and the results of the initial calculations are given. The predicted readback resolution can be much better than those implied in earlier theories
Keywords :
magnetic heads; magnetic recording; contradictory results; double-layer perpendicular recording media; ferromagnetism; magnetic recording; magnetization distribution; magnetization state; read head; readback resolution; readback voltage; reciprocity principle; reciprocity theorems; single pole heads; theory; Algorithm design and analysis; Coils; Eddy currents; Equations; Magnetic analysis; Magnetic heads; Magnetization; Permeability; Perpendicular magnetic recording; Voltage;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/20.92186
Filename :
92186
Link To Document :
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