Title :
Pt-Cr alloy intermediate layer for granular perpendicular media
Author :
Nemoto, H. ; Araki, R. ; Hosoe, Y.
Author_Institution :
Hitachi, Ltd., Odawara
Abstract :
In this paper, fabrication of intermediate layer (IML) with a Pt-Cr binary alloy system for granular perpendicular media was discussed. Kerr magnetometer was used to obtain hysteresis loops of the co-sputtered Pt-Cr alloy IMLs. The saturation magnetizations Ms and the uniaxial magnetic anisotropy energy Ku were measured with a vibrating sample magnetometer and a torque magnetometer with an applied field of 5 T, respectively. The microscopic structures were examined with transmission electron microscopy (TEM) and the recording performance was characterized by the media SNR at 400 kFCI as measured using a SPT/GMR head.
Keywords :
Kerr magneto-optical effect; chromium alloys; discontinuous metallic thin films; magnetic anisotropy; magnetic hysteresis; magnetic thin films; perpendicular magnetic recording; platinum alloys; sputter deposition; transmission electron microscopy; DC magnetron sputtering; Kerr magnetometer; Pt-Cr alloy intermediate layer; PtCr; SPT/GMR head; granular perpendicular media; hysteresis loops; magnetic flux density 5 T; magnetic recording; saturation magnetization; saturation magnetizations; torque magnetometer; transmission electron microscopy; uniaxial magnetic anisotropy energy; vibrating sample magnetometer; Energy measurement; Fabrication; Magnetic anisotropy; Magnetic field measurement; Magnetic hysteresis; Magnetometers; Saturation magnetization; Torque measurement; Transmission electron microscopy; Vibration measurement;
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
DOI :
10.1109/INTMAG.2006.375423
