Intra- and inter-pattern non-linearities in high density magnetic recording

Author

Taratorin, A. ; Cheng, D. ; Arnett, P. ; Olson, R. ; Diola, T. ; Fitzpatrick, J. ; Wang, S.X. ; Wilson, B.

Author_Institution

IBM Res. Div., Almaden Res. Center, San Jose, CA, USA

Volume

34

Issue

1

fYear

1998

fDate

1/1/1998 12:00:00 AM

Firstpage

45

Lastpage

50

Abstract

Intra-pattern and Inter-pattern demagnetization fields cause the appearance of Non-Linear Transition Shift (NLTS) and Hard Transition Shift (HTS). Additional timing shifts at high frequency writing reinforce both intra-pattern and inter-pattern non-linearities. A model describing interaction of the timing and the density transition shifts for a dibit transition is proposed. Experimental results indicate strong interaction between adjacent transition in series and significant oscillations of transition shift

Keywords

demagnetisation; magnetic recording; magnetic transitions; demagnetization field; dibit transition; hard transition shift; high density magnetic recording; inter-pattern nonlinearity; intra-pattern nonlinearity; nonlinear transition shift; timing shift; Degradation; Demagnetization; Frequency; High temperature superconductors; Magnetic flux; Magnetic heads; Magnetic recording; Performance evaluation; Timing; Writing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.663438

Filename

663438