Coercivity control of FePt nanoparticles by interfacial disorder

Y. K. Takahashi; S. Okamoto; O. Kitakami; Y. Shimada; K. Hono

doi:10.2320/matertrans.47.38

Coercivity control of FePt nanoparticles by interfacial disorder

Y. K. Takahashi, S. Okamoto, O. Kitakami, Y. Shimada, K. Hono

多元物質科学研究所・無機材料研究部門

研究成果: ジャーナルへの寄稿 › 学術論文 › 査読

1 被引用数 (Scopus)

抄録

Thin disordered layer can be formed by sputter-deposition of alumina on fully ordered L1₀ FePt nanoparticle assembly, due to plasma damage. The thickness of the disordered layer can be tuned by the sputtering power and deposition time of the alumina target. This partial disordering causes substantial decrease in the coercivity, which may be effective to adjust very high switching field of L1₀ FePt to practical magnetic recording systems.

本文言語	英語
ページ（範囲）	38-42
ページ数	5
ジャーナル	Materials Transactions
巻	47
号	1
DOI	https://doi.org/10.2320/matertrans.47.38
出版ステータス	出版済み - 2006 1月

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title = "Coercivity control of FePt nanoparticles by interfacial disorder",

abstract = "Thin disordered layer can be formed by sputter-deposition of alumina on fully ordered L10 FePt nanoparticle assembly, due to plasma damage. The thickness of the disordered layer can be tuned by the sputtering power and deposition time of the alumina target. This partial disordering causes substantial decrease in the coercivity, which may be effective to adjust very high switching field of L10 FePt to practical magnetic recording systems.",

keywords = "Coercivity, FePt, Interfacially disorder, Nanoparticle",

author = "Takahashi, {Y. K.} and S. Okamoto and O. Kitakami and Y. Shimada and K. Hono",

year = "2006",

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doi = "10.2320/matertrans.47.38",

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AU - Takahashi, Y. K.

AU - Okamoto, S.

AU - Kitakami, O.

AU - Shimada, Y.

AU - Hono, K.

PY - 2006/1

Y1 - 2006/1

N2 - Thin disordered layer can be formed by sputter-deposition of alumina on fully ordered L10 FePt nanoparticle assembly, due to plasma damage. The thickness of the disordered layer can be tuned by the sputtering power and deposition time of the alumina target. This partial disordering causes substantial decrease in the coercivity, which may be effective to adjust very high switching field of L10 FePt to practical magnetic recording systems.

AB - Thin disordered layer can be formed by sputter-deposition of alumina on fully ordered L10 FePt nanoparticle assembly, due to plasma damage. The thickness of the disordered layer can be tuned by the sputtering power and deposition time of the alumina target. This partial disordering causes substantial decrease in the coercivity, which may be effective to adjust very high switching field of L10 FePt to practical magnetic recording systems.

KW - Coercivity

KW - FePt

KW - Interfacially disorder

KW - Nanoparticle

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Coercivity control of FePt nanoparticles by interfacial disorder

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