Title :
Anisotropy enhanced dual magnetic layer design for high-density perpendicular recording
Author :
Acharya, B.R. ; Zheng, M. ; Choe, G. ; Yu, M. ; Gill, P. ; Abarra, N.
Author_Institution :
MMC Technol., San Jose, CA, USA
Abstract :
In this study, we employed anisotropy enhanced dual magnetic layer design, which improves signal-to-noise ratio (SNR) as well as adjacent track erasure (ATE) over the current single layer CoCrPtO media. The dual magnetic layer, consisting of a lower CoCrPtO layer and an upper CoCrPtB layer were deposited on SUL/Ta/Ru layer structure along with the single layer CoCrPtO and CoCrPtB media.
Keywords :
chromium compounds; cobalt compounds; magnetic anisotropy; magnetic thin films; perpendicular magnetic recording; CoCrPtB; CoCrPtO; Ta-Ru; adjacent track erasure; anisotropy; dual magnetic layer; high density perpendicular recording; signal-to-noise ratio; soft underlayer; Anisotropic magnetoresistance; Coercive force; Grain size; Magnetic anisotropy; Magnetic shielding; Noise reduction; Perpendicular magnetic anisotropy; Perpendicular magnetic recording; Signal to noise ratio; Thermal stability;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1463722
