Yamamoto Setsuo
Affiliate Master
Yamaguchi University
Preparation and read/write characteristics of Co-γFe_2O_3/NiO longitudinal magnetic recording media
Journal of Magnetics Society of Japan Volume 22 Issue 3
Page 125-128
published_at 1998
Title
Co-γFe_2O_3/NiO長手磁気記録媒体の作製と記録再生特性
Preparation and read/write characteristics of Co-γFe_2O_3/NiO longitudinal magnetic recording media
Creators
土井 孝紀
Creators
田万里 耕作
Creators
柿原 康男
Creators
松浦 満
Creator Keywords
Co-γFe_2O_3
NiO underlayer
coercivity
longitudinal magnetic recording medium
R
W characteristic
contact recording
Co-γFe_2O_3 longitudinal magnetic recording media obtained by annealing CoO-Fe_3O_4 were prepared on NiO underlayer. The coercivity H_c was varied with the Co content, namely, the atomic ratio of Co/Fe in Co-γFe_2O_3, and the oxygen partial pressure in deposition of CoO-Fe_3O_4. The Hc of the media with Co/Fe = 4 at% was 2000-3500 Oe, 1.3-3.6 times higher than that of Co-γFe_2O_3 media without NiO underlayer. The grain size of Co-γFe_2O_3 became smaller with decreasing the thickness. The read/write characteristics of the media with no overcoat were evaluated in contact recording. Co-γFe_2O_3 media on NiO had higher D_<50> and lower medium noise than those of the media without NiO underlayer.
Languages
jpn
Resource Type
journal article
Publishers
日本応用磁気学会
Date Issued
1998
File Version
Not Applicable (or Unknown)
Access Rights
metadata only access
Relations
[ISSN]0285-0192
[NCID]AN0031390X
[isPartOf]
[URI]http://www.wdc-jp.com/msj/journal/index.html
Schools
大学院理工学研究科（工学）