Preparation and recording characteristics of Co-γFe_2O_3 High-Density magnetic recording media
Journal of Magnetics Society of Japan Volume 21 Issue 4-2
Page 225-228
published_at 1997
Title
Co-γFe_2O_3高密度磁気記録媒体の作製と記録特性
Preparation and recording characteristics of Co-γFe_2O_3 High-Density magnetic recording media
Creators
土井 孝紀
Creators
田万里 耕作
Creators
安藤 貴之
Creators
松浦 満
Creator Keywords
reactive sputtering
NiO
CoO-Fe_3O_4
Co-γFe_2O_3
perpendicular magnetic anisotropy
recording medium
recording characteristic
Co-γFe_2O_3perpendicular magnetic recording media were preparedby the CoO-Fe_3O_4single-1ayer deposition method, which is more suitable for mass production than the CoO/ Fe_3O_4 multilayer deposition method. Moderately <100>-oriented Co-γFe_2O_3media with intermediate perpendicular anisotropy (K_u＝6.0 × 10^5erg/cm^3) were prepared with a wide range of film thicknesses and oxygen partial pressure used in deposition of NiO underlayers. These media showed a superior high-density recording performance comparable to that of highly <100>-oriented Co-γFe_2O_3 media with large perpendicular anisotropy (Ku＝1.4 × 10^6 erg/cm^3). It is surmised that the superior performance of these media was supported by the longitudinal magnetic component as well as the perpendicular one.
Languages
jpn
Resource Type
journal article
Publishers
日本応用磁気学会
Date Issued
1997
File Version
Not Applicable (or Unknown)
Access Rights
metadata only access
Relations
[ISSN]0285-0192
[NCID]AN0031390X
[isVersionOf]
[URI]http://www.wdc-jp.com/msj/journal/index.html
Schools
大学院理工学研究科（工学）