Non-epitaxial, highly textured (001) CoPt:B2O3 composite films for perpendicular recording

M. L. Yan, N. Powers, D. J. Sellmyer

Research output: Contribution to journalConference article

6 Citations (Scopus)

Abstract

We report the non-epitaxial growth of highly textured (001) CoPt:B2O3 nanocomposite thin films that are deposited directly on thermally-oxidized Si wafers. Multilayers of Co/Pt/Co/B2O3 are deposited followed by appropriate thermal processing. The as-deposited films are disordered fcc CoPt phase, and magnetically soft. After annealing, an (001) orientation of CoPt-ordered grains is developed. The texture development is dependent both on the total film thickness and the annealing process. Nearly perfect (001) texture can be obtained in films with thinner initial layer thicknesses. Strong perpendicular anisotropy is shown to be related to this (001) texture.

Original languageEnglish (US)
Pages (from-to)291-295
Number of pages5
JournalMaterials Research Society Symposium - Proceedings
Volume721
StatePublished - Jan 1 2002
EventMagnetic and Electronic Films - Microstructure, Texture and Application to Data Storage - San Francisco, United States
Duration: Apr 1 2002Apr 4 2002

Fingerprint

Composite films
textures
Textures
recording
composite materials
Annealing
annealing
Nanocomposite films
Film thickness
nanocomposites
Multilayers
Anisotropy
film thickness
wafers
Thin films
anisotropy
thin films
boron oxide

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Non-epitaxial, highly textured (001) CoPt:B2O3 composite films for perpendicular recording. / Yan, M. L.; Powers, N.; Sellmyer, D. J.

In: Materials Research Society Symposium - Proceedings, Vol. 721, 01.01.2002, p. 291-295.

Research output: Contribution to journalConference article

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AB - We report the non-epitaxial growth of highly textured (001) CoPt:B2O3 nanocomposite thin films that are deposited directly on thermally-oxidized Si wafers. Multilayers of Co/Pt/Co/B2O3 are deposited followed by appropriate thermal processing. The as-deposited films are disordered fcc CoPt phase, and magnetically soft. After annealing, an (001) orientation of CoPt-ordered grains is developed. The texture development is dependent both on the total film thickness and the annealing process. Nearly perfect (001) texture can be obtained in films with thinner initial layer thicknesses. Strong perpendicular anisotropy is shown to be related to this (001) texture.

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