Unshielded perpendicular recording head for 1 Tb/in2

The tip has saturation magnetization (MS) of 24 kG while the collar has lower MS. The magnitude and orientation of anisotropy field (Hk) in the tip is varied to obtain the best recording performance.

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Bibliographic Details
Published inIEEE transactions on magnetics Vol. 40; no. 1; pp. 247 - 252
Main Authors PATWARI, Mohammed S, VICTORA, Randall H
Format Conference Proceeding Journal Article
LanguageEnglish
Published New York, NY Institute of Electrical and Electronics Engineers 2004
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Anisotropy
Applied sciences
Electronics
Exact sciences and technology
Magnetic devices
Magnetic thin film devices: magnetic heads (magnetoresistive, inductive, etc.); domain-motion devices, etc
Magnetism
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
on-track erasure and frequency response
High density
Index Terms-Adjacent track erasure
Recording head
Theoretical study
Erasure
Micromagnetism
Three dimensional model
Perpendicular recording
Magnetic anisotropy
Recording density
Magnetic head
Saturation magnetization
Magnetic recording
Magnetic properties
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More Information
Summary:The tip has saturation magnetization (MS) of 24 kG while the collar has lower MS. The magnitude and orientation of anisotropy field (Hk) in the tip is varied to obtain the best recording performance.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2003.821186