Sputter-Deposited SmCo5 Thin Films with Perpendicular Magnetic Anisotropy for High Density Magnetic Recording Media

Sputter-deposited SmCo5 thin films exhibiting high perpendicular magnetic anisotropy were studied for materializing ultra high density magnetic recording. This study put emphasis on the fabrication of SmCo5 double-layered perpendicular magnetic recording media. A double-layered medium with a Ru buff...

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Bibliographic Details
Published inECS transactions Vol. 3; no. 25; pp. 307 - 313
Main Authors Sayama, Junichi, Yamashita, Yuki, Asahi, Toru, Osaka, T.
Format Journal Article
LanguageEnglish
Published 23.08.2007
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Summary:Sputter-deposited SmCo5 thin films exhibiting high perpendicular magnetic anisotropy were studied for materializing ultra high density magnetic recording. This study put emphasis on the fabrication of SmCo5 double-layered perpendicular magnetic recording media. A double-layered medium with a Ru buffer layer introduced between a Cu/Ti intermediate layer and a Co-Zr-Nb soft magnetic underlayer exhibited high perpendicular magnetic anisotropy, whereas that without the Ru buffer layer did not. Auger electron spectroscopy revealed that the Ru buffer layer inhibited unfavorable interdiffusion between the Cu/Ti intermediate layer and the Co-Zr-Nb soft magnetic underlayer. In addition, the read-write characteristics of the SmCo5 double-layered perpendicular magnetic recording media were evaluated for the first time.
ISSN:1938-5862
1938-6737
DOI:10.1149/1.2753263