Title :
Effect of intermediate Layer at recording Layer/soft magnetic underlayer interface in perpendicular recording media observed by ferromagnetic Hall effect
Author :
Das, Sarbanoo ; Kong, Sok-Hyun ; Nakagawa, Shigeki
Author_Institution :
Dept. of Phys. Electron., Tokyo Inst. of Technol., Japan
fDate :
7/1/2004 12:00:00 AM
Abstract :
Effect of the presence of a Pt intermediate layer (IL) between a 50-nm-thick CoCrPt recording layer (RL) and a 100-nm-thick NiFe soft magnetic under layer (SUL) has been studied using ferromagnetic Hall effect under the tilted magnetic field. CoCrPt RL with/without Pt IL between the RL and SUL revealed different inclination in the anomalous Hall voltage loop indicating the effect from the Ni-Fe SUL. Magnetic properties of the SUL, simultaneously detected from the Planar Hall voltage suggested the interaction effect between the CoCrPt RL and Ni-Fe SUL.
Keywords :
Hall effect; cobalt alloys; interface magnetism; magnetic fields; nickel alloys; perpendicular magnetic recording; soft magnetic materials; 100 nm; 50 nm; CoCrPt-NiFe; Pt intermediate layer; anomalous Hall voltage loop; double-layered media; ferromagnetic Hall effect; interaction effect; magnetic interaction; magnetic properties; perpendicular recording media; planar Hall voltage; recording layer; soft magnetic underlayer interface; tilted magnetic field; Hall effect; Magnetic anisotropy; Magnetic field measurement; Magnetic films; Magnetic properties; Magnetization; Perpendicular magnetic anisotropy; Perpendicular magnetic recording; Soft magnetic materials; Voltage; Anomalous Hall effect; double-layered media; ferromagnetic Hall effect; intermediate layer; magnetic interaction;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2004.829278
