FePt-Ag nanocomposite thin films with longitudinal magnetic anisotropy

Y. Z. Zhou; J. S. Chen; G. M. Chow; Jianping Wang

doi:10.1166/jnn.2004.089

FePt-Ag nanocomposite thin films with longitudinal magnetic anisotropy

Y. Z. Zhou, J. S. Chen, G. M. Chow, Jianping Wang

Electrical and Computer Engineering

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

1 Scopus citations

Abstract

A well-controlled method to fabricate FePt thin films with the (200) texture and longitudinal magnetic anisotropy for high-density magnetic recording media is reported. FePt-Ag nanocomposite thin films with L1 ₀ ordered FePt grains embedded in an Ag matrix were deposited on the Cr ₉₀ Ru ₁₀ / glass by co-sputtering from Ag and FePt targets. The Ag doping suppressed the (001) texture but improved the L1 ₀ FePt (200) texture. The magnetic easy axis of FePt-Ag thin films changed from perpendicular to longitudinal in direction. In-plane coercivity of the films varied from 0.8 kOe to 6.5 kOe, depending on Ag contents in the films and under-layer thickness. The change from the (001) to (200) texture could be due to the competition of grain-boundary energy and epitaxial-strain energy.

Original language	English (US)
Pages (from-to)	704-707
Number of pages	4
Journal	Journal of Nanoscience and Nanotechnology
Volume	4
Issue number	7
DOIs	https://doi.org/10.1166/jnn.2004.089
State	Published - Sep 1 2004

Keywords

Fept-ag Nanocomposite
Magnetic Anisotropy
Magnetic Properties
XRD

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10.1166/jnn.2004.089

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abstract = " A well-controlled method to fabricate FePt thin films with the (200) texture and longitudinal magnetic anisotropy for high-density magnetic recording media is reported. FePt-Ag nanocomposite thin films with L1 0 ordered FePt grains embedded in an Ag matrix were deposited on the Cr 90 Ru 10 / glass by co-sputtering from Ag and FePt targets. The Ag doping suppressed the (001) texture but improved the L1 0 FePt (200) texture. The magnetic easy axis of FePt-Ag thin films changed from perpendicular to longitudinal in direction. In-plane coercivity of the films varied from 0.8 kOe to 6.5 kOe, depending on Ag contents in the films and under-layer thickness. The change from the (001) to (200) texture could be due to the competition of grain-boundary energy and epitaxial-strain energy. ",

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AU - Zhou, Y. Z.

AU - Chen, J. S.

AU - Chow, G. M.

AU - Wang, Jianping

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Y1 - 2004/9/1

N2 - A well-controlled method to fabricate FePt thin films with the (200) texture and longitudinal magnetic anisotropy for high-density magnetic recording media is reported. FePt-Ag nanocomposite thin films with L1 0 ordered FePt grains embedded in an Ag matrix were deposited on the Cr 90 Ru 10 / glass by co-sputtering from Ag and FePt targets. The Ag doping suppressed the (001) texture but improved the L1 0 FePt (200) texture. The magnetic easy axis of FePt-Ag thin films changed from perpendicular to longitudinal in direction. In-plane coercivity of the films varied from 0.8 kOe to 6.5 kOe, depending on Ag contents in the films and under-layer thickness. The change from the (001) to (200) texture could be due to the competition of grain-boundary energy and epitaxial-strain energy.

AB - A well-controlled method to fabricate FePt thin films with the (200) texture and longitudinal magnetic anisotropy for high-density magnetic recording media is reported. FePt-Ag nanocomposite thin films with L1 0 ordered FePt grains embedded in an Ag matrix were deposited on the Cr 90 Ru 10 / glass by co-sputtering from Ag and FePt targets. The Ag doping suppressed the (001) texture but improved the L1 0 FePt (200) texture. The magnetic easy axis of FePt-Ag thin films changed from perpendicular to longitudinal in direction. In-plane coercivity of the films varied from 0.8 kOe to 6.5 kOe, depending on Ag contents in the films and under-layer thickness. The change from the (001) to (200) texture could be due to the competition of grain-boundary energy and epitaxial-strain energy.

KW - Fept-ag Nanocomposite

KW - Magnetic Anisotropy

KW - Magnetic Properties

KW - XRD

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FePt-Ag nanocomposite thin films with longitudinal magnetic anisotropy

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