Inter-track interference studies using MFM image reconstruction

Author

Madabhushi, R. ; Gomez, R.D. ; Burke, E.R. ; Mayergoyz, I.D. ; Orloff, J.

Author_Institution

Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA

Volume

33

Issue

5

fYear

1997

fDate

9/1/1997 12:00:00 AM

Firstpage

4053

Lastpage

4055

Abstract

The Magnetic Force Microscopy (MFM) image reconstruction technique has overcome difficulties in interpreting MFM images of data tracks written on longitudinal recording media. In this work, MFM image reconstruction is used to study the vector magnetization components of closely spaced tracks. Untrimmed and Focused-Ion Beam (FIB) milled, trimmed thin-film inductive heads of widths 4.5 μm and 2.5 μm are used to write tracks with wavelengths ranging from 0.75 μm to 3 μm. In order to analyze the limitations of high density recording, the magnetization at the edges of neighboring tracks is considered. It is shown that the width of the cross-track component of magnetization is strongly dependent on the relative phase difference of adjacent tracks, the track width, and the linear recording density

Keywords

image reconstruction; interference (signal); magnetic force microscopy; magnetic recording; FIB milling; MFM image reconstruction; data track; high density recording; inter-track interference; longitudinal recording medium; magnetic force microscopy; thin-film inductive head; trimming; vector magnetization; Focusing; Image reconstruction; Interference; Magnetic analysis; Magnetic force microscopy; Magnetic forces; Magnetic heads; Magnetic recording; Magnetization; Transistors;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.619660

Filename

619660