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

^*この研究の対応する著者

研究成果: Article › 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	English
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	Published - 2006 1月
外部発表	はい

ASJC Scopus subject areas

材料科学（全般）
凝縮系物理学
材料力学
機械工学

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10.2320/matertrans.47.38

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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.",

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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

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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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