Title :
Spatial effects at dynamic switching in thin-film recording media
Author :
Richter, Hans Jürgen ; Thomson, Thomas ; Yen, Ed T.
Author_Institution :
Seagate Recording Media, CA, USA
fDate :
9/1/2000 12:00:00 AM
Abstract :
Measurements of coercivity as a function of time have been performed using a nondestructive spin-stand technique. Two disks were measured using nine different test conditions, including various writing gap lengths and head to medium velocities. No spatial effects were found, but it was noticed that the results depended on subtleties of the measurement procedure
Keywords :
coercive force; hard discs; magnetic recording noise; magnetic thin film devices; superparamagnetism; coercivity; dynamic switching; hard disks; head to medium velocities; measurement procedure; nondestructive spin-stand technique; spatial effects; test conditions; thin-film recording media; writing gap lengths; Coercive force; Disk recording; Length measurement; Magnetic heads; Performance evaluation; Testing; Time measurement; Transistors; Velocity measurement; Writing;
Journal_Title :
Magnetics, IEEE Transactions on
