Title :
Hysteresis and baseline shift in permanent magnet stabilized MR/SAL heads
Author :
Champion, Eric ; Bertram, H. Neal
Author_Institution :
Center for Magnetic Recording Res., California Univ., San Diego, La Jolla, CA, USA
fDate :
1/1/1996 12:00:00 AM
Abstract :
Hysteresis and baseline shift in shielded permanent magnet stabilized MR/SAL playback heads are studied via a 3D micromagnetic simulation. The hysteretic behavior is examined by calculation of playback voltages and uniform field transfer curves. The overlap region between the MR/SAL layers and the permanent magnet is seen to have a strong effect on the stability of the device. The amount of hysteresis is studied versus the width of the overlap region and the off-track position of the head
Keywords :
magnetic heads; magnetic hysteresis; magnetic recording noise; magnetoresistive devices; permanent magnets; stability; 3D micromagnetic simulation; MR/SAL heads; baseline shift; hysteresis; off-track position; overlap region; permanent magnet stabilized heads; playback heads; playback voltages; stability; uniform field transfer curves; Hysteresis; Magnetic anisotropy; Magnetic heads; Magnetic materials; Magnetization; Magnetostatics; Micromagnetics; Permanent magnets; Perpendicular magnetic anisotropy; Soft magnetic materials;
Journal_Title :
Magnetics, IEEE Transactions on
