The effect of additive Ag layers on the L10 FePt phase transformation

Z. L. Zhao; J. S. Chen; J. Ding; K. Inaba; J. P. Wang

doi:10.1016/j.jmmm.2004.04.026

The effect of additive Ag layers on the L1₀ FePt phase transformation

Z. L. Zhao, J. S. Chen, J. Ding, K. Inaba, J. P. Wang

Electrical and Computer Engineering

Research output: Contribution to journal › Conference article › peer-review

16 Scopus citations

Abstract

The effect of ultrathin (nominal thickness of 0.25nm) Ag layers added in different locations of FePt thin film on the L1₀ FePt phase ordering has been investigated. After the Ag layer is deposited on the bottom of the FePt film, the coercivity increases from about 1 to 1.6kOe. When the 0.25nm Ag layer is moved from the bottom to the top of the film, the coercivity gradually increases to about 3kOe. The δM curves suggests that the exchange coupling in the FePt film was decreased when the additive Ag layer was deposited in the middle or on the top of the FePt films while it remains unchanged when Ag layer was on the bottom of the FePt layer compared with the δM curve of FePt film without Ag layers.

Original language	English (US)
Pages (from-to)	105-108
Number of pages	4
Journal	Journal of Magnetism and Magnetic Materials
Volume	282
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jmmm.2004.04.026
State	Published - Nov 2004
Event	International Symposium on Advanced Magnetic Technologies - Taipei, Taiwan, Province of China Duration: Nov 13 2003 → Nov 16 2003

Bibliographical note

Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.

Keywords

Additive layer
Ag
FePt
Magnetic recording media
Ultrathin film

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Cite this

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abstract = "The effect of ultrathin (nominal thickness of 0.25nm) Ag layers added in different locations of FePt thin film on the L10 FePt phase ordering has been investigated. After the Ag layer is deposited on the bottom of the FePt film, the coercivity increases from about 1 to 1.6kOe. When the 0.25nm Ag layer is moved from the bottom to the top of the film, the coercivity gradually increases to about 3kOe. The δM curves suggests that the exchange coupling in the FePt film was decreased when the additive Ag layer was deposited in the middle or on the top of the FePt films while it remains unchanged when Ag layer was on the bottom of the FePt layer compared with the δM curve of FePt film without Ag layers.",

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AU - Ding, J.

AU - Inaba, K.

AU - Wang, J. P.

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AB - The effect of ultrathin (nominal thickness of 0.25nm) Ag layers added in different locations of FePt thin film on the L10 FePt phase ordering has been investigated. After the Ag layer is deposited on the bottom of the FePt film, the coercivity increases from about 1 to 1.6kOe. When the 0.25nm Ag layer is moved from the bottom to the top of the film, the coercivity gradually increases to about 3kOe. The δM curves suggests that the exchange coupling in the FePt film was decreased when the additive Ag layer was deposited in the middle or on the top of the FePt films while it remains unchanged when Ag layer was on the bottom of the FePt layer compared with the δM curve of FePt film without Ag layers.

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