Enhanced grain growth of magnetic granules in Co/oxide granular films

T. Ito; O. Kitakami; Y. Shimada; Y. Kamo; S. Kikuchi

doi:10.1016/S0304-8853(01)00330-4

Enhanced grain growth of magnetic granules in Co/oxide granular films

T. Ito, O. Kitakami, Y. Shimada, Y. Kamo, S. Kikuchi

Division of Inorganic Material Research

Research output: Contribution to journal › Conference article › peer-review

6 Citations (Scopus)

Abstract

We have investigated phase separation and grain growth of Co in Co-(Si, Sm, In, Si-In)-O granular films and found significant grain growth in Co-In-O at low annealing temperature. Using this non-magnetic matrix, the annealing temperature necessary for optimal granular structures can be reduced significantly compared with conventional Co-Si-O and Co-Sm-O granular systems. A newly proposed phase separation model based on the bonding energy of constituent elements qualitatively explains all the experimental results.

Original language	English
Pages (from-to)	165-168
Number of pages	4
Journal	Journal of Magnetism and Magnetic Materials
Volume	235
Issue number	1-3
DOIs	https://doi.org/10.1016/S0304-8853(01)00330-4
Publication status	Published - 2001 Oct
Event	Proceedings of the 5th Perpendicular Magnetic Recording Conference (PMRC 2000) - Sendai, Japan Duration: 2000 Oct 23 → 2000 Oct 26

Keywords

Bonding energy
Granular film
Phase separation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/S0304-8853(01)00330-4

Cite this

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title = "Enhanced grain growth of magnetic granules in Co/oxide granular films",

abstract = "We have investigated phase separation and grain growth of Co in Co-(Si, Sm, In, Si-In)-O granular films and found significant grain growth in Co-In-O at low annealing temperature. Using this non-magnetic matrix, the annealing temperature necessary for optimal granular structures can be reduced significantly compared with conventional Co-Si-O and Co-Sm-O granular systems. A newly proposed phase separation model based on the bonding energy of constituent elements qualitatively explains all the experimental results.",

keywords = "Bonding energy, Granular film, Phase separation",

author = "T. Ito and O. Kitakami and Y. Shimada and Y. Kamo and S. Kikuchi",

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 the Storage Research Consortium in Japan. ; Proceedings of the 5th Perpendicular Magnetic Recording Conference (PMRC 2000) ; Conference date: 23-10-2000 Through 26-10-2000",

year = "2001",

month = oct,

doi = "10.1016/S0304-8853(01)00330-4",

language = "English",

volume = "235",

pages = "165--168",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

number = "1-3",

}

TY - JOUR

T1 - Enhanced grain growth of magnetic granules in Co/oxide granular films

AU - Ito, T.

AU - Kitakami, O.

AU - Shimada, Y.

AU - Kamo, Y.

AU - Kikuchi, 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 the Storage Research Consortium in Japan.

PY - 2001/10

Y1 - 2001/10

N2 - We have investigated phase separation and grain growth of Co in Co-(Si, Sm, In, Si-In)-O granular films and found significant grain growth in Co-In-O at low annealing temperature. Using this non-magnetic matrix, the annealing temperature necessary for optimal granular structures can be reduced significantly compared with conventional Co-Si-O and Co-Sm-O granular systems. A newly proposed phase separation model based on the bonding energy of constituent elements qualitatively explains all the experimental results.

AB - We have investigated phase separation and grain growth of Co in Co-(Si, Sm, In, Si-In)-O granular films and found significant grain growth in Co-In-O at low annealing temperature. Using this non-magnetic matrix, the annealing temperature necessary for optimal granular structures can be reduced significantly compared with conventional Co-Si-O and Co-Sm-O granular systems. A newly proposed phase separation model based on the bonding energy of constituent elements qualitatively explains all the experimental results.

KW - Bonding energy

KW - Granular film

KW - Phase separation

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U2 - 10.1016/S0304-8853(01)00330-4

DO - 10.1016/S0304-8853(01)00330-4

M3 - Conference article

AN - SCOPUS:0035476180

SN - 0304-8853

VL - 235

SP - 165

EP - 168

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 1-3

T2 - Proceedings of the 5th Perpendicular Magnetic Recording Conference (PMRC 2000)

Y2 - 23 October 2000 through 26 October 2000

ER -

Enhanced grain growth of magnetic granules in Co/oxide granular films

Abstract

Keywords

ASJC Scopus subject areas

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