SiO2 layer thickness effects on the (001) texture of FePtCu:SiO2 nanocomposite films

B. Ma; C. L. Zha; Z. Z. Zhang; Q. Y. Jin

doi:10.1016/j.tsf.2009.09.101

SiO₂ layer thickness effects on the (001) texture of FePtCu:SiO₂ nanocomposite films

B. Ma, C. L. Zha, Z. Z. Zhang, Q. Y. Jin

Electrical and Computer Engineering

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

6 Scopus citations

Abstract

The influence of SiO₂ layer thickness of (Fe₅₂Pt₄₈)₈₈Cu₁₂:SiO₂ multilayer nanocomposite films on their structural and magnetic properties were investigated. The films were deposited on (001) textured FePt films, and then annealed at 873 K. The crystalline texture of (Fe₅₂Pt₄₈)₈₈Cu₁₂:SiO₂ films changes drastically with respect to the thickness of the SiO₂ layers. In the film with 50-Å thick SiO₂ layers, the (111) peak was strong although the (001) orientation is dominant, and self-organized spherical FePtCu particles were formed in the SiO₂ matrix. However, in the film with 19-Å thick SiO₂ layers, flat FePt grains with perfect (001) orientation were obtained. In addition, twins with different crystalline orientations were seen in the above films with different thicknesses of the SiO₂ layers. Accordingly, different perpendicular hysteresis loops were obtained.

Original language	English (US)
Pages (from-to)	2163-2166
Number of pages	4
Journal	Thin Solid Films
Volume	518
Issue number	8
DOIs	https://doi.org/10.1016/j.tsf.2009.09.101
State	Published - Feb 1 2010

Keywords

FePt
Nanocomposite
SiO
Texture
Thin films

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title = "SiO2 layer thickness effects on the (001) texture of FePtCu:SiO2 nanocomposite films",

abstract = "The influence of SiO2 layer thickness of (Fe52Pt48)88Cu12:SiO2 multilayer nanocomposite films on their structural and magnetic properties were investigated. The films were deposited on (001) textured FePt films, and then annealed at 873 K. The crystalline texture of (Fe52Pt48)88Cu12:SiO2 films changes drastically with respect to the thickness of the SiO2 layers. In the film with 50-{\AA} thick SiO2 layers, the (111) peak was strong although the (001) orientation is dominant, and self-organized spherical FePtCu particles were formed in the SiO2 matrix. However, in the film with 19-{\AA} thick SiO2 layers, flat FePt grains with perfect (001) orientation were obtained. In addition, twins with different crystalline orientations were seen in the above films with different thicknesses of the SiO2 layers. Accordingly, different perpendicular hysteresis loops were obtained.",

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N2 - The influence of SiO2 layer thickness of (Fe52Pt48)88Cu12:SiO2 multilayer nanocomposite films on their structural and magnetic properties were investigated. The films were deposited on (001) textured FePt films, and then annealed at 873 K. The crystalline texture of (Fe52Pt48)88Cu12:SiO2 films changes drastically with respect to the thickness of the SiO2 layers. In the film with 50-Å thick SiO2 layers, the (111) peak was strong although the (001) orientation is dominant, and self-organized spherical FePtCu particles were formed in the SiO2 matrix. However, in the film with 19-Å thick SiO2 layers, flat FePt grains with perfect (001) orientation were obtained. In addition, twins with different crystalline orientations were seen in the above films with different thicknesses of the SiO2 layers. Accordingly, different perpendicular hysteresis loops were obtained.

AB - The influence of SiO2 layer thickness of (Fe52Pt48)88Cu12:SiO2 multilayer nanocomposite films on their structural and magnetic properties were investigated. The films were deposited on (001) textured FePt films, and then annealed at 873 K. The crystalline texture of (Fe52Pt48)88Cu12:SiO2 films changes drastically with respect to the thickness of the SiO2 layers. In the film with 50-Å thick SiO2 layers, the (111) peak was strong although the (001) orientation is dominant, and self-organized spherical FePtCu particles were formed in the SiO2 matrix. However, in the film with 19-Å thick SiO2 layers, flat FePt grains with perfect (001) orientation were obtained. In addition, twins with different crystalline orientations were seen in the above films with different thicknesses of the SiO2 layers. Accordingly, different perpendicular hysteresis loops were obtained.

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