Magnetic head field over the air-bearing surface as visualized by the projection of a patterned electron beam

Author

Suzuki, Hiroshi ; Shimakura, Tomokazu ; Itoh, Kenichi ; Nakamura, Kimio

Author_Institution

Central Res. Lab., Hitachi Ltd., Tokyo, Japan

Volume

36

Issue

5

fYear

2000

fDate

9/1/2000 12:00:00 AM

Firstpage

3614

Lastpage

3617

Abstract

We have developed a technique to provide a way to map a two-dimensional magnetic field distribution over an air-bearing surface of a recording head. This technique is based on modified transmission electron microscopy (TEM) and the computer processing of TEM images distorted by the head field. The technique makes it possible to study the field distribution at various distances from the air-bearing surface of the head

Keywords

computerised tomography; electron beam testing; magnetic field measurement; magnetic heads; transmission electron microscopy; air-bearing surface; computer aided tomography; computer processing; deflection angle; distorted TEM images; dot pattern image; magnetic head field; magnetic recording head; modified transmission electron microscopy; patterned electron beam projection; two-dimensional magnetic field distribution; Electron beams; Image analysis; Magnetic analysis; Magnetic fields; Magnetic force microscopy; Magnetic heads; Magnetic recording; Scanning electron microscopy; Transmission electron microscopy; Visualization;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.908918

Filename

908918