Title :
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
fDate :
9/1/2000 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
