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

Volume

40

Issue

4

fYear

2004

fDate

7/1/2004 12:00:00 AM

Firstpage

2191

Lastpage

2193

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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2004.832111

Filename

1325449