CoCrPt-SiO2 Perpendicular Recording Media with a Crystalline Soft Underlayer

Author

Shi, J. ; Piramanayagam, S. ; Chow, S. ; Zhao, J. ; Mah, C.

Author_Institution

Data Storage Inst., Singapore

fYear

2006

fDate

8-12 May 2006

Firstpage

622

Lastpage

622

Abstract

CoCrPt-SiO₂-based perpendicular recording medium with a crystalline soft underlayer (c-SUL). Low Deltathetas₅₀ of about 3 deg with a thin intermediate layer of 5 nm has been made in this media. In this paper, we report the orientation improvement, noise reduction of c-SUL and recording performance of the media. The magnetic properties and microstructure were characterized by magneto-optic Kerr effect (MOKE) magnetometer, X-ray diffraction (XRD), transmission microscopy (TEM), and optical surface analyzer (OSA). Recording performance was measured by a Guzik spinstand stand tester with a ring-head writer and a MR reader.

Keywords

Kerr magneto-optical effect; X-ray diffraction; chromium alloys; cobalt alloys; coercive force; perpendicular magnetic recording; platinum alloys; silicon compounds; transmission electron microscopy; CoCrPt-SiO₂; Guzik spinstand stand tester; MOKE magnetometer; MR reader; TEM; X-ray diffraction; XRD; coercivity; crystalline soft underlayer; magnetic properties; magneto-optic Kerr effect magnetometer; microstructure; noise reduction; optical surface analyzer; perpendicular recording media; ring-head writer; transmission microscopy; Crystallization; Kerr effect; Magnetic properties; Magnetooptic effects; Magnetooptic recording; Microstructure; Noise reduction; Optical microscopy; Optical recording; Perpendicular magnetic recording;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2006. INTERMAG 2006. IEEE International

Conference_Location

San Diego, CA

Print_ISBN

1-4244-1479-2

Type

conf

DOI

10.1109/INTMAG.2006.376346

Filename

4262055