Magnetic characterization of Co-Pt particles produced by sputtering

T. Ibusuki; O. Kitakami; Y. Endo; S. Okamoto; Y. Shimada

doi:10.1016/S1359-6462(01)00703-5

Magnetic characterization of Co-Pt particles produced by sputtering

T. Ibusuki, O. Kitakami, Y. Endo, S. Okamoto, Y. Shimada

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

5 Citations (Scopus)

Abstract

The magnetoanisotropy for Co and Co-Pt nanocrystals produced by sputtering was evaluated by the law of approach to saturation. The volume fraction R ranged from 0 to 80%, but the anisotropy evaluated under the assumption that it behaves as uniaxial was not sensitive to R. Calculation of Hc using these Ku_eff agrees well with the measured Hc. The ratio Mr/Ms is near 0.5 irrespective of R. This also supports uniaxial switching behaviors for these nanocrystals.

Original language	English
Pages (from-to)	1327-1331
Number of pages	5
Journal	Scripta Materialia
Volume	44
Issue number	8-9
DOIs	https://doi.org/10.1016/S1359-6462(01)00703-5
Publication status	Published - 2001 May 18

Keywords

2 Co-Pt
Coercivity
Fine particle
Magnetic anisotropy

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/S1359-6462(01)00703-5

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abstract = "The magnetoanisotropy for Co and Co-Pt nanocrystals produced by sputtering was evaluated by the law of approach to saturation. The volume fraction R ranged from 0 to 80%, but the anisotropy evaluated under the assumption that it behaves as uniaxial was not sensitive to R. Calculation of Hc using these Kueff agrees well with the measured Hc. The ratio Mr/Ms is near 0.5 irrespective of R. This also supports uniaxial switching behaviors for these nanocrystals.",

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author = "T. Ibusuki and O. Kitakami and Y. Endo and S. Okamoto and Y. Shimada",

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T1 - Magnetic characterization of Co-Pt particles produced by sputtering

AU - Ibusuki, T.

AU - Kitakami, O.

AU - Endo, Y.

AU - Okamoto, S.

AU - Shimada, Y.

PY - 2001/5/18

Y1 - 2001/5/18

N2 - The magnetoanisotropy for Co and Co-Pt nanocrystals produced by sputtering was evaluated by the law of approach to saturation. The volume fraction R ranged from 0 to 80%, but the anisotropy evaluated under the assumption that it behaves as uniaxial was not sensitive to R. Calculation of Hc using these Kueff agrees well with the measured Hc. The ratio Mr/Ms is near 0.5 irrespective of R. This also supports uniaxial switching behaviors for these nanocrystals.

AB - The magnetoanisotropy for Co and Co-Pt nanocrystals produced by sputtering was evaluated by the law of approach to saturation. The volume fraction R ranged from 0 to 80%, but the anisotropy evaluated under the assumption that it behaves as uniaxial was not sensitive to R. Calculation of Hc using these Kueff agrees well with the measured Hc. The ratio Mr/Ms is near 0.5 irrespective of R. This also supports uniaxial switching behaviors for these nanocrystals.

KW - 2 Co-Pt

KW - Coercivity

KW - Fine particle

KW - Magnetic anisotropy

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EP - 1331

JO - Scripta Materialia

JF - Scripta Materialia

SN - 1359-6462

IS - 8-9

ER -

Magnetic characterization of Co-Pt particles produced by sputtering

Abstract

Keywords

ASJC Scopus subject areas

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