Title :
Micromagnetic studies of Co-Pt-Cr longitudinal recording media
Author :
Neville, Richard J. ; Ferrier, Robert P.
Author_Institution :
Dept. of Phys. & Astron., Glasgow Univ., UK
fDate :
11/1/1995 12:00:00 AM
Abstract :
The micromagnetic structures of recorded tracks in two types of isotropic CoPtCr longitudinal recording media have been investigated using the modified differential phase contrast method of Lorentz electron microscopy. Media intended for both inductive and magnetoresistive playback have been studied and thin film specimens suitable for electron microscopy were isolated from standard NiP plated AlMg hard disks. The ultimate aim is to map the magnetization distribution associated with the writing process and to attempt to correlate this with the physical microstructure of the films
Keywords :
chromium alloys; cobalt alloys; magnetic recording; magnetic structure; magnetic thin films; magnetisation; platinum alloys; scanning-transmission electron microscopy; AlMg; Co-Pt-Cr longitudinal recording media; CoPtCr; Lorentz electron microscopy; NiP plated AlMg hard disks; NiP-AlMg; inductive playback; magnetization distribution mapping; magnetoresistive playback; micromagnetic structures; modified differential phase contrast method; physical microstructure; recorded tracks; thin film specimens; writing process; Disk recording; Electron microscopy; Hard disks; Magnetic force microscopy; Magnetization; Magnetoresistance; Micromagnetics; Microstructure; Transistors; Writing;
Journal_Title :
Magnetics, IEEE Transactions on
