Title :
Domain observation on magnetoresistive sensor elements
Author :
McCord, Jeffery ; Hubert, Alex ; Schröpfer, Gerold ; Loreit, Uwe
Author_Institution :
Inst. fur Werkstoffwissenschaften, Erlangen-Nurnberg Univ., Germany
fDate :
9/1/1996 12:00:00 AM
Abstract :
We investigate the domain behavior of different magnetoresistance sensor elements to optimize a sensor shape for high sensitivity applications. Some of the encountered remanent domain patterns are analyzed using a novel quantitative magnetooptic observation technique. The center coercivity field and the saturation field of the elements were measured as a clue for stability and sensitivity of the sensor element
Keywords :
Permalloy; coercive force; electric sensing devices; magnetic domains; magnetic thin films; magnetoresistive devices; Ni81Fe19; Si; center coercivity field; high sensitivity applications; magnetoresistive sensor elements; quantitative magnetooptic observation; remanent domain patterns; saturation field; sensor shape; Anisotropic magnetoresistance; Conductors; Magnetic analysis; Magnetic field measurement; Magnetic sensors; Magnetization; Magnetooptic effects; Pattern analysis; Shape; Stability;
Journal_Title :
Magnetics, IEEE Transactions on
