Recording processes in perpendicular patterned media using longitudinal magnetic recording heads

Author

Barbic, Mladen ; Schultz, Sheldon ; Wong, Joyce ; Scherer, Axel

Author_Institution

Dept. of Phys., California Univ., San Diego, La Jolla, CA, USA

Volume

37

Issue

4

fYear

2001

fDate

7/1/2001 12:00:00 AM

Firstpage

1657

Lastpage

1660

Abstract

An experimental study of the recording processes in patterned magnetic media is presented. The reading of patterned media using spin-valve elements is compared to the signal levels from magneto-resistive sensors. Writing and reading of patterned columnar media at high areal densities is demonstrated. A new experimental technique has been developed that allows precise determination of the location of the write gap poles with respect to the patterned media column during the write process. Implications for patterned media write synchronization and the write head field requirements are discussed

Keywords

digital magnetic recording; magnetic heads; magnetoresistive devices; nanostructured materials; storage media; synchronisation; high areal densities; longitudinal magnetic recording heads; magnetoresistive sensors; patterned columnar media; perpendicular patterned media; recording processes; spin-valve elements; write gap poles; write head field requirement; write process; write synchronization; Anisotropic magnetoresistance; Fabrication; Image sensors; Magnetic heads; Magnetic recording; Magnetic sensors; Perpendicular magnetic recording; Physics; Sensor arrays; Transducers;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.950929

Filename

950929