Fabrication of two-dimensional assembly of L10 FePt particles

Y. Shimada; T. Sakurai; T. Miyazaki; O. Kitakami; S. Okamoto

doi:10.1016/S0304-8853(02)01505-6

Fabrication of two-dimensional assembly of L1₀ FePt particles

Y. Shimada, T. Sakurai, T. Miyazaki, O. Kitakami, S. Okamoto

IMRAM - Division of Inorganic Material Research

Tohoku University

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

3 Citations (Scopus)

Abstract

Synthesis of L1₀ phase FePt particles which are two-dimensionally distributed on a substrate surface is studied. In order to obtain a fine particle assembly of L1₀ phase the low temperature ordering process of FePt from Fe/Pt multilayers is extended to multilayers of Fe-(MgO,Ag)/Pt-(MgO,Ag). In the annealing process of these multilayer structures Fe tends to migrate in MgO or Ag toward Pt while Pt tends to remain in the original position. Double layers of Fe-Ag/Pt are chosen to synthesize a two-dimensional distribution of ordered FePt particles. According to the Auger and micro-beam energy dispersion X-ray spectroscopy (EDX) analysis a part of Ag in Fe-Ag layer tends to move to the surface by annealing to embed the ordered FePt particles. Measurements of δM suggest that the particles are magnetically separated.

Original language	English
Pages (from-to)	329-338
Number of pages	10
Journal	Journal of Magnetism and Magnetic Materials
Volume	262
Issue number	2
DOIs	https://doi.org/10.1016/S0304-8853(02)01505-6
Publication status	Published - 2003 Jun

Keywords

FePt
Magnetic recording media
Multilayer
Ordered phase
Particles

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10.1016/S0304-8853(02)01505-6

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title = "Fabrication of two-dimensional assembly of L10 FePt particles",

abstract = "Synthesis of L10 phase FePt particles which are two-dimensionally distributed on a substrate surface is studied. In order to obtain a fine particle assembly of L10 phase the low temperature ordering process of FePt from Fe/Pt multilayers is extended to multilayers of Fe-(MgO,Ag)/Pt-(MgO,Ag). In the annealing process of these multilayer structures Fe tends to migrate in MgO or Ag toward Pt while Pt tends to remain in the original position. Double layers of Fe-Ag/Pt are chosen to synthesize a two-dimensional distribution of ordered FePt particles. According to the Auger and micro-beam energy dispersion X-ray spectroscopy (EDX) analysis a part of Ag in Fe-Ag layer tends to move to the surface by annealing to embed the ordered FePt particles. Measurements of δM suggest that the particles are magnetically separated.",

keywords = "FePt, Magnetic recording media, Multilayer, Ordered phase, Particles",

author = "Y. Shimada and T. Sakurai and T. Miyazaki and O. Kitakami and S. Okamoto",

note = "Funding Information: This work is supported by the Research for the Future Program of Japan Society for the Promotion of Science under Grant No. 97R14701, and Storage Research Consortium in Japan.",

year = "2003",

month = jun,

doi = "10.1016/S0304-8853(02)01505-6",

language = "English",

volume = "262",

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journal = "Journal of Magnetism and Magnetic Materials",

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T1 - Fabrication of two-dimensional assembly of L10 FePt particles

AU - Shimada, Y.

AU - Sakurai, T.

AU - Miyazaki, T.

AU - Kitakami, O.

AU - Okamoto, S.

N1 - Funding Information: This work is supported by the Research for the Future Program of Japan Society for the Promotion of Science under Grant No. 97R14701, and Storage Research Consortium in Japan.

PY - 2003/6

Y1 - 2003/6

N2 - Synthesis of L10 phase FePt particles which are two-dimensionally distributed on a substrate surface is studied. In order to obtain a fine particle assembly of L10 phase the low temperature ordering process of FePt from Fe/Pt multilayers is extended to multilayers of Fe-(MgO,Ag)/Pt-(MgO,Ag). In the annealing process of these multilayer structures Fe tends to migrate in MgO or Ag toward Pt while Pt tends to remain in the original position. Double layers of Fe-Ag/Pt are chosen to synthesize a two-dimensional distribution of ordered FePt particles. According to the Auger and micro-beam energy dispersion X-ray spectroscopy (EDX) analysis a part of Ag in Fe-Ag layer tends to move to the surface by annealing to embed the ordered FePt particles. Measurements of δM suggest that the particles are magnetically separated.

AB - Synthesis of L10 phase FePt particles which are two-dimensionally distributed on a substrate surface is studied. In order to obtain a fine particle assembly of L10 phase the low temperature ordering process of FePt from Fe/Pt multilayers is extended to multilayers of Fe-(MgO,Ag)/Pt-(MgO,Ag). In the annealing process of these multilayer structures Fe tends to migrate in MgO or Ag toward Pt while Pt tends to remain in the original position. Double layers of Fe-Ag/Pt are chosen to synthesize a two-dimensional distribution of ordered FePt particles. According to the Auger and micro-beam energy dispersion X-ray spectroscopy (EDX) analysis a part of Ag in Fe-Ag layer tends to move to the surface by annealing to embed the ordered FePt particles. Measurements of δM suggest that the particles are magnetically separated.

KW - FePt

KW - Magnetic recording media

KW - Multilayer

KW - Ordered phase

KW - Particles

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VL - 262

SP - 329

EP - 338

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 2

ER -

Fabrication of two-dimensional assembly of L1₀ FePt particles

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Keywords

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