Magneto-optical properties of magnetic nanocomposites

E. Gan'shina; M. Kochneva; M. Vashuk; A. Vinogradov; A. Granovsky; V. Gushchin; P. Shcherbak; Chong Oh Kim; Cheol Gi Kim

doi:10.1134/S0031918X06140079

Magneto-optical properties of magnetic nanocomposites

E. Gan'shina, M. Kochneva, M. Vashuk, A. Vinogradov, A. Granovsky, V. Gushchin, P. Shcherbak, Chong Oh Kim, Cheol Gi Kim

Department of Physics and Chemistry

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

2 Scopus citations

Abstract

The magnetotransport, optical, and magneto-optical (MO) properties of (CoFeZr) _X (Al₂O₃)_100-X nanocomposites in the as-deposited state and after annealing have been studied. It is shown that the MO response of the nanocomposites increases in the vicinity of the percolation threshold. New features have been observed in the samples with X ≥ 45% after annealing. The permittivity tensor ε of the nanocomposites has been calculated and the simulation in the framework of the effective-medium approximation was made. It is supposed that the new features appearing in both the MO spectra and permittivity tensor ε after annealing are caused by the excitation of surface plasma resonances.

Original language	English
Pages (from-to)	S32-S35
Journal	Physics of Metals and Metallography
Volume	102
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1134/S0031918X06140079
State	Published - Dec 2006

Bibliographical note

Funding Information:
ACKNOWLEDGMENTS This study was supported by the Russian Foundation for Basic Research and by the Korea Science and Engineering Foundation through ReCAMM. E. Gan’shina acknowledges the support of the Brain Pool Program.

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title = "Magneto-optical properties of magnetic nanocomposites",

abstract = "The magnetotransport, optical, and magneto-optical (MO) properties of (CoFeZr) X (Al2O3)100-X nanocomposites in the as-deposited state and after annealing have been studied. It is shown that the MO response of the nanocomposites increases in the vicinity of the percolation threshold. New features have been observed in the samples with X ≥ 45% after annealing. The permittivity tensor ε of the nanocomposites has been calculated and the simulation in the framework of the effective-medium approximation was made. It is supposed that the new features appearing in both the MO spectra and permittivity tensor ε after annealing are caused by the excitation of surface plasma resonances.",

author = "E. Gan'shina and M. Kochneva and M. Vashuk and A. Vinogradov and A. Granovsky and V. Gushchin and P. Shcherbak and Kim, {Chong Oh} and Kim, {Cheol Gi}",

note = "Funding Information: ACKNOWLEDGMENTS This study was supported by the Russian Foundation for Basic Research and by the Korea Science and Engineering Foundation through ReCAMM. E. Gan{\textquoteright}shina acknowledges the support of the Brain Pool Program.",

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doi = "10.1134/S0031918X06140079",

language = "English",

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T1 - Magneto-optical properties of magnetic nanocomposites

AU - Gan'shina, E.

AU - Kochneva, M.

AU - Vashuk, M.

AU - Vinogradov, A.

AU - Granovsky, A.

AU - Gushchin, V.

AU - Shcherbak, P.

AU - Kim, Chong Oh

AU - Kim, Cheol Gi

N1 - Funding Information: ACKNOWLEDGMENTS This study was supported by the Russian Foundation for Basic Research and by the Korea Science and Engineering Foundation through ReCAMM. E. Gan’shina acknowledges the support of the Brain Pool Program.

PY - 2006/12

Y1 - 2006/12

N2 - The magnetotransport, optical, and magneto-optical (MO) properties of (CoFeZr) X (Al2O3)100-X nanocomposites in the as-deposited state and after annealing have been studied. It is shown that the MO response of the nanocomposites increases in the vicinity of the percolation threshold. New features have been observed in the samples with X ≥ 45% after annealing. The permittivity tensor ε of the nanocomposites has been calculated and the simulation in the framework of the effective-medium approximation was made. It is supposed that the new features appearing in both the MO spectra and permittivity tensor ε after annealing are caused by the excitation of surface plasma resonances.

AB - The magnetotransport, optical, and magneto-optical (MO) properties of (CoFeZr) X (Al2O3)100-X nanocomposites in the as-deposited state and after annealing have been studied. It is shown that the MO response of the nanocomposites increases in the vicinity of the percolation threshold. New features have been observed in the samples with X ≥ 45% after annealing. The permittivity tensor ε of the nanocomposites has been calculated and the simulation in the framework of the effective-medium approximation was made. It is supposed that the new features appearing in both the MO spectra and permittivity tensor ε after annealing are caused by the excitation of surface plasma resonances.

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DO - 10.1134/S0031918X06140079

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SP - S32-S35

JO - Physics of Metals and Metallography

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IS - SUPPL. 1

ER -

Magneto-optical properties of magnetic nanocomposites

Abstract

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