Growth mechanism and structure of obliquely evaporated Co-CoO tapes

Author

Ito, Takuya ; Iwasaki, Yoh ; Tachibana, Junichi ; Mizuno, Hiroshi ; Shimizu, Koichiro ; Arisaka, Yuichi ; Murakami, Yasukazu ; Shindo, Daisuke

Author_Institution

Recording Media Co., Sony Corp., Miyagi, Japan

Volume

40

Issue

4

fYear

2004

fDate

7/1/2004 12:00:00 AM

Firstpage

2410

Lastpage

2412

Abstract

The growth mechanism that determines the microstructure of obliquely evaporated Co-CoO tapes has been investigated. A preferred orientation relation hcp--Co <001>//CoO <111> is found in the neighboring grains when the hcp-Co grains grow on top of the CoO. However, no preferred orientation is observed in the lower to middle part of the magnetic layer when the CoO grains grow on top of the hcp-Co. The structural properties of the Co-CoO tapes can be explained accordingly based on the preferred orientation relation.

Keywords

cobalt alloys; crystal microstructure; crystal orientation; grain size; interface structure; magnetic tapes; sputter deposition; transmission electron microscopy; Co-CoO; CoO underlayer; growth mechanism; growth structure; magnetic layer; magnetic recording; magnetic tapes; microstructure; neighboring grains; obliquely evaporated tapes; preferred orientation relation; structural properties; transmission electron microscopy; Diffraction; Indium tin oxide; Magnetic field measurement; Magnetic force microscopy; Magnetic materials; Magnetic properties; Magnetic recording; Magnetic separation; Microstructure; Transmission electron microscopy; CoO underlayer; TEM; evaporated tapes; magnetic recording; magnetic tapes; preferred orientation relation; transmission electron microscopy;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2004.830173

Filename

1325521