Title :
Measurement of the magnetic properties of double-layered PMRM using an AHE magnetometer
Author :
Lindemuth, Jeffrey ; Dodrill, Brad
Author_Institution :
Lake Shore Cryotronics, Westerville, OH, USA
fDate :
7/1/2004 12:00:00 AM
Abstract :
The anomalous Hall effect has been recognized as a useful tool for measuring the magnetic hysteresis M(H) loops of perpendicular magnetic recording media (PMRM), and has shown particular utility for characterizing double-layered PMRM since the loops for both the recording layer (RL) and soft under layer (SUL) may be measured simultaneously, a task not easily accomplished using conventional magnetometers because of the difficulty associated with extracting the properties of the RL and SUL individually.
Keywords :
Hall effect; Hall effect devices; magnetic field measurement; magnetic hysteresis; magnetometers; perpendicular magnetic recording; AHE magnetometer; anomalous Hall effect; double-Layered PMRM; magnetic hysteresis loops; magnetic properties measurements; materials testing; perpendicular magnetic recording media; perpendicular recording media; recording layer; soft under layer; Current measurement; Electrical resistance measurement; Hall effect; Magnetic field measurement; Magnetic properties; Magnetization; Magnetometers; Particle measurements; Perpendicular magnetic recording; Voltage; AHE; Anomalous Hall effect; magnetometers; materials testing; perpendicular recording media;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2004.832111