Ferromagnetism of manganese-silicide nanopariticles in silicon

Shin Yabuuchi; Yukinori Ono; Masao Nagase; Hiroyuki Kageshima; Akira Fujiwara; Eiji Ohta

doi:10.1143/JJAP.47.4487

Ferromagnetism of manganese-silicide nanopariticles in silicon

Shin Yabuuchi, Yukinori Ono, Masao Nagase, Hiroyuki Kageshima, Akira Fujiwara, Eiji Ohta

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

18 Citations (Scopus)

Abstract

The annealing-temperature (700-900 °C) dependence of the ferromagnetism of manganese-implanted silicon is investigated. In the annealed samples, the manganese-containing nanoparticles, whose mean size was found to get bigger with temperature, are formed and these samples show ferromagnetism. We obtain evidence that the samples annealed at 800-850 °C produce two kinds of ferromagnets and that one of them offers a coercivity as high as 2500 Oe, suggesting the possibility of Si-based nanostructures with stable ferromagnetism. The origin of these ferromagnetisms is also discussed in conjunction with the size distribution of the nanoparticles.

Original language	English
Pages (from-to)	4487-4490
Number of pages	4
Journal	Japanese journal of applied physics
Volume	47
Issue number	6 PART 1
DOIs	https://doi.org/10.1143/JJAP.47.4487
Publication status	Published - 2008 Jun 13
Externally published	Yes

Keywords

Implantation
Magnetism
Manganese
Nanoparticle
Silicide
Silicon
Spintronics

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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10.1143/JJAP.47.4487

Cite this

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title = "Ferromagnetism of manganese-silicide nanopariticles in silicon",

abstract = "The annealing-temperature (700-900 °C) dependence of the ferromagnetism of manganese-implanted silicon is investigated. In the annealed samples, the manganese-containing nanoparticles, whose mean size was found to get bigger with temperature, are formed and these samples show ferromagnetism. We obtain evidence that the samples annealed at 800-850 °C produce two kinds of ferromagnets and that one of them offers a coercivity as high as 2500 Oe, suggesting the possibility of Si-based nanostructures with stable ferromagnetism. The origin of these ferromagnetisms is also discussed in conjunction with the size distribution of the nanoparticles.",

keywords = "Implantation, Magnetism, Manganese, Nanoparticle, Silicide, Silicon, Spintronics",

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T1 - Ferromagnetism of manganese-silicide nanopariticles in silicon

AU - Yabuuchi, Shin

AU - Ono, Yukinori

AU - Nagase, Masao

AU - Kageshima, Hiroyuki

AU - Fujiwara, Akira

AU - Ohta, Eiji

PY - 2008/6/13

Y1 - 2008/6/13

N2 - The annealing-temperature (700-900 °C) dependence of the ferromagnetism of manganese-implanted silicon is investigated. In the annealed samples, the manganese-containing nanoparticles, whose mean size was found to get bigger with temperature, are formed and these samples show ferromagnetism. We obtain evidence that the samples annealed at 800-850 °C produce two kinds of ferromagnets and that one of them offers a coercivity as high as 2500 Oe, suggesting the possibility of Si-based nanostructures with stable ferromagnetism. The origin of these ferromagnetisms is also discussed in conjunction with the size distribution of the nanoparticles.

AB - The annealing-temperature (700-900 °C) dependence of the ferromagnetism of manganese-implanted silicon is investigated. In the annealed samples, the manganese-containing nanoparticles, whose mean size was found to get bigger with temperature, are formed and these samples show ferromagnetism. We obtain evidence that the samples annealed at 800-850 °C produce two kinds of ferromagnets and that one of them offers a coercivity as high as 2500 Oe, suggesting the possibility of Si-based nanostructures with stable ferromagnetism. The origin of these ferromagnetisms is also discussed in conjunction with the size distribution of the nanoparticles.

KW - Implantation

KW - Magnetism

KW - Manganese

KW - Nanoparticle

KW - Silicide

KW - Silicon

KW - Spintronics

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Ferromagnetism of manganese-silicide nanopariticles in silicon

Abstract

Keywords

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