Sputter-deposited SmCo5 thin films with perpendicular magnetic anisotropy for high density magnetic recording media

J. Sayama, Y. Yamashita, Toru Asahi, Tetsuya Osaka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Sputter-deposited SmCos thin films exhibiting high perpendicular magnetic anisotropy were studied for materializing ultra high density magnetic recording. This study put emphasis on the fabrication of SmCos 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 readwrite characteristics of the SmCos double-layered perpendicular magnetic recording media were evaluated for the first time. copyright The Electrochemical Society.

Original languageEnglish
Title of host publicationECS Transactions
Pages307-313
Number of pages7
Volume3
Edition25
DOIs
Publication statusPublished - 2007
Event9th International Symposium on Magnetic Materials, Processes and Devices - 210th ECS Meeting - Cancun
Duration: 2006 Oct 312006 Nov 2

Other

Other9th International Symposium on Magnetic Materials, Processes and Devices - 210th ECS Meeting
CityCancun
Period06/10/3106/11/2

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Magnetic recording
Magnetic anisotropy
Buffer layers
Thin films
Auger electron spectroscopy
Fabrication

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Sputter-deposited SmCo5 thin films with perpendicular magnetic anisotropy for high density magnetic recording media. / Sayama, J.; Yamashita, Y.; Asahi, Toru; Osaka, Tetsuya.

ECS Transactions. Vol. 3 25. ed. 2007. p. 307-313.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sayama, J, Yamashita, Y, Asahi, T & Osaka, T 2007, Sputter-deposited SmCo5 thin films with perpendicular magnetic anisotropy for high density magnetic recording media. in ECS Transactions. 25 edn, vol. 3, pp. 307-313, 9th International Symposium on Magnetic Materials, Processes and Devices - 210th ECS Meeting, Cancun, 06/10/31. https://doi.org/10.1149/1.2753263
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