Effects of surface step and substrate temperature on nanostructure of L10-FePt nanoparticles

Kazuhisa Sato; Takenori Kajiwara; Masaru Fujiyoshi; Manabu Ishimaru; Yoshihiko Hirotsu; Tadashi Shinohara

doi:10.1063/1.1541641

Effects of surface step and substrate temperature on nanostructure of L1₀-FePt nanoparticles

Kazuhisa Sato, Takenori Kajiwara, Masaru Fujiyoshi, Manabu Ishimaru, Yoshihiko Hirotsu, Tadashi Shinohara

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

8 Citations (Scopus)

Abstract

An investigation on the variation of the particle size, particle density and its relation to the hard magnetic properties of FePt nanoparticles with respect to substrate surface morphologies and substrate temperatures was performed. At a substrate temperature below 573 K, densely dispersed FePt nanoparticles with a particle density of 10¹² cm ^-2 were obtained. It was found that for obtaining well-oriented and well-isolated L1₀-FePt nanoparticles with large coercivity, substrate temperatures between 623 and 823 K were necessary.

Original language	English
Pages (from-to)	7414-7416
Number of pages	3
Journal	Journal of Applied Physics
Volume	93
Issue number	10 2
DOIs	https://doi.org/10.1063/1.1541641
Publication status	Published - 2003 May 15

ASJC Scopus subject areas

Physics and Astronomy(all)

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abstract = "An investigation on the variation of the particle size, particle density and its relation to the hard magnetic properties of FePt nanoparticles with respect to substrate surface morphologies and substrate temperatures was performed. At a substrate temperature below 573 K, densely dispersed FePt nanoparticles with a particle density of 1012 cm -2 were obtained. It was found that for obtaining well-oriented and well-isolated L10-FePt nanoparticles with large coercivity, substrate temperatures between 623 and 823 K were necessary.",

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AU - Sato, Kazuhisa

AU - Kajiwara, Takenori

AU - Fujiyoshi, Masaru

AU - Ishimaru, Manabu

AU - Hirotsu, Yoshihiko

AU - Shinohara, Tadashi

PY - 2003/5/15

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AB - An investigation on the variation of the particle size, particle density and its relation to the hard magnetic properties of FePt nanoparticles with respect to substrate surface morphologies and substrate temperatures was performed. At a substrate temperature below 573 K, densely dispersed FePt nanoparticles with a particle density of 1012 cm -2 were obtained. It was found that for obtaining well-oriented and well-isolated L10-FePt nanoparticles with large coercivity, substrate temperatures between 623 and 823 K were necessary.

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