Title :
Thermal decay study of various magnetization patterns
Author :
Brockie, Richard M. ; Richter, Hans Jürgen
Author_Institution :
Seagate Technol., Fremont, CA, USA
fDate :
9/1/2002 12:00:00 AM
Abstract :
Simple superposition arguments suggest that the demagnetizing fields in a single-tone (ST) magnetization pattern will result in higher thermal decay of the magnetization than for the corresponding component of a data storage pattern. We present results which indicate that this is not a major effect, and conclude that spinstand decay measurements of ST patterns are preferable to measurements of pseudorandom sequence patterns.
Keywords :
magnetic recording; magnetic switching; magnetisation; sequences; superparamagnetism; thermal stability; data storage pattern; demagnetizing fields; linear density; magnetic recording; pseudorandom sequence patterns; single-tone magnetization pattern; spinstand decay measurements; superparamagnetic effect; superposition arguments; thermal decay; thermal stability; thermal switching rate equation; Demagnetization; Frequency measurement; Magnetic field measurement; Magnetic heads; Magnetic recording; Magnetic switching; Magnetization; Random sequences; Temperature sensors; Testing;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.802848
