On spin-canting in maghemite particles

Søren Linderoth; Peter Vang Hendriksen; F. Bødker; S. Wells; K. Davies; S. W. Charles; Steen Mørup

doi:10.1063/1.356902

On spin-canting in maghemite particles

Søren Linderoth, Peter Vang Hendriksen, F. Bødker, S. Wells, K. Davies, S. W. Charles, Steen Mørup

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Abstract

The degree of alignment of the magnetic moments of Fe3+ ions in ultrafine maghemite particles has been studied in samples with induced magnetic texture. The textured samples were prepared by freezing ferrofluids, containing 7.5 nm maghemite particles, in a magnetic field. Mössbauer spectroscopy studies of the textured samples in large magnetic fields demonstrate that the lack of full alignment is not an effect of large magnetic anisotropy, as suggested recently, but that the effect is rather due to canting of individual spins. Journal of Applied Physics is copyrighted by The American Institute of Physics.

Original language	English
Journal	Journal of Applied Physics
Volume	75
Issue number	10
Pages (from-to)	6583-6585
ISSN	0021-8979
DOIs	https://doi.org/10.1063/1.356902
Publication status	Published - 1994

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Copyright (1994) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

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AU - Linderoth, Søren

AU - Hendriksen, Peter Vang

AU - Bødker, F.

AU - Wells, S.

AU - Davies, K.

AU - Charles, S. W.

AU - Mørup, Steen

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N2 - The degree of alignment of the magnetic moments of Fe3+ ions in ultrafine maghemite particles has been studied in samples with induced magnetic texture. The textured samples were prepared by freezing ferrofluids, containing 7.5 nm maghemite particles, in a magnetic field. Mössbauer spectroscopy studies of the textured samples in large magnetic fields demonstrate that the lack of full alignment is not an effect of large magnetic anisotropy, as suggested recently, but that the effect is rather due to canting of individual spins. Journal of Applied Physics is copyrighted by The American Institute of Physics.

AB - The degree of alignment of the magnetic moments of Fe3+ ions in ultrafine maghemite particles has been studied in samples with induced magnetic texture. The textured samples were prepared by freezing ferrofluids, containing 7.5 nm maghemite particles, in a magnetic field. Mössbauer spectroscopy studies of the textured samples in large magnetic fields demonstrate that the lack of full alignment is not an effect of large magnetic anisotropy, as suggested recently, but that the effect is rather due to canting of individual spins. Journal of Applied Physics is copyrighted by The American Institute of Physics.

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JO - Journal of Applied Physics

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On spin-canting in maghemite particles

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