Structural and magnetic properties of FePt=SiO2 granular thin films

C. P. Luo; D. J. Sellmyer

doi:10.1063/1.125264

Structural and magnetic properties of FePt=SiO₂ granular thin films

C. P. Luo, D. J. Sellmyer

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

166 Scopus citations

Abstract

Nanocomposite FePt:SiO₂ films have been fabricated by annealing the as-deposited FePt/SiO₂ multilayers at temperatures from 450 to 650 °C. These films consist of high-anisotropy tetragonal L1₀ FePt particles embedded in a SiO₂ matrix. The structural and magnetic properties of these films were investigated. We have found that coercivity and grain size are highly dependent on the annealing temperature and SiO₂ concentration. Films with coercivities in the range from 2 to 8 kOe and grain sizes of 10 nm or less were obtained. These films have considerable potential as high-density magnetic recording media.

Original language	English (US)
Pages (from-to)	3162-3164
Number of pages	3
Journal	Applied Physics Letters
Volume	75
Issue number	20
DOIs	https://doi.org/10.1063/1.125264
State	Published - Nov 15 1999

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Physics and Astronomy (miscellaneous)

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abstract = "Nanocomposite FePt:SiO2 films have been fabricated by annealing the as-deposited FePt/SiO2 multilayers at temperatures from 450 to 650 °C. These films consist of high-anisotropy tetragonal L10 FePt particles embedded in a SiO2 matrix. The structural and magnetic properties of these films were investigated. We have found that coercivity and grain size are highly dependent on the annealing temperature and SiO2 concentration. Films with coercivities in the range from 2 to 8 kOe and grain sizes of 10 nm or less were obtained. These films have considerable potential as high-density magnetic recording media.",

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AU - Sellmyer, D. J.

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N2 - Nanocomposite FePt:SiO2 films have been fabricated by annealing the as-deposited FePt/SiO2 multilayers at temperatures from 450 to 650 °C. These films consist of high-anisotropy tetragonal L10 FePt particles embedded in a SiO2 matrix. The structural and magnetic properties of these films were investigated. We have found that coercivity and grain size are highly dependent on the annealing temperature and SiO2 concentration. Films with coercivities in the range from 2 to 8 kOe and grain sizes of 10 nm or less were obtained. These films have considerable potential as high-density magnetic recording media.

AB - Nanocomposite FePt:SiO2 films have been fabricated by annealing the as-deposited FePt/SiO2 multilayers at temperatures from 450 to 650 °C. These films consist of high-anisotropy tetragonal L10 FePt particles embedded in a SiO2 matrix. The structural and magnetic properties of these films were investigated. We have found that coercivity and grain size are highly dependent on the annealing temperature and SiO2 concentration. Films with coercivities in the range from 2 to 8 kOe and grain sizes of 10 nm or less were obtained. These films have considerable potential as high-density magnetic recording media.

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Structural and magnetic properties of FePt=SiO₂ granular thin films

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