Spin dynamics in weakly and strongly interacting NiO nanoparticles

Christian Robert Haffenden Bahl; Kim Lefmann; Luise Theil Kuhn; Per-Anker Lindgård; Niels Bech Christensen; H.V. Melis; Steen Mørup

doi:10.1088/0953-8984/18/49/013

Spin dynamics in weakly and strongly interacting NiO nanoparticles

Christian Robert Haffenden Bahl, Kim Lefmann, Luise Theil Kuhn, Per-Anker Lindgård, Niels Bech Christensen, H.V. Melis, Steen Mørup

Department of Physics

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

Abstract

The spin dynamics of plate-shaped nanoparticles of NiO has been studied by inelastic neutron scattering and Mossbauer spectroscopy. A value of the in-plane anisotropy energy constant significantly larger than the bulk value has been measured. The temperature and field dependence of the energy of the antiferromagnetic resonance mode associated with this in-plane anisotropy has been studied. Both Mossbauer spectroscopy and neutron scattering data show that the magnetic fluctuations are strongly affected by the strength of interparticle interactions.

Original language	English
Journal	Journal of Physics Condensed Matter
Volume	18
Issue number	49
Pages (from-to)	11203-11216
ISSN	0953-8984
DOIs	https://doi.org/10.1088/0953-8984/18/49/013
Publication status	Published - 2006

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abstract = "The spin dynamics of plate-shaped nanoparticles of NiO has been studied by inelastic neutron scattering and Mossbauer spectroscopy. A value of the in-plane anisotropy energy constant significantly larger than the bulk value has been measured. The temperature and field dependence of the energy of the antiferromagnetic resonance mode associated with this in-plane anisotropy has been studied. Both Mossbauer spectroscopy and neutron scattering data show that the magnetic fluctuations are strongly affected by the strength of interparticle interactions. ",

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AU - Bahl, Christian Robert Haffenden

AU - Lefmann, Kim

AU - Kuhn, Luise Theil

AU - Lindgård, Per-Anker

AU - Christensen, Niels Bech

AU - Melis, H.V.

AU - Mørup, Steen

PY - 2006

Y1 - 2006

N2 - The spin dynamics of plate-shaped nanoparticles of NiO has been studied by inelastic neutron scattering and Mossbauer spectroscopy. A value of the in-plane anisotropy energy constant significantly larger than the bulk value has been measured. The temperature and field dependence of the energy of the antiferromagnetic resonance mode associated with this in-plane anisotropy has been studied. Both Mossbauer spectroscopy and neutron scattering data show that the magnetic fluctuations are strongly affected by the strength of interparticle interactions.

AB - The spin dynamics of plate-shaped nanoparticles of NiO has been studied by inelastic neutron scattering and Mossbauer spectroscopy. A value of the in-plane anisotropy energy constant significantly larger than the bulk value has been measured. The temperature and field dependence of the energy of the antiferromagnetic resonance mode associated with this in-plane anisotropy has been studied. Both Mossbauer spectroscopy and neutron scattering data show that the magnetic fluctuations are strongly affected by the strength of interparticle interactions.

KW - Energiteknologier på vej

U2 - 10.1088/0953-8984/18/49/013

DO - 10.1088/0953-8984/18/49/013

M3 - Journal article

VL - 18

SP - 11203

EP - 11216

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

SN - 0953-8984

IS - 49

ER -

Spin dynamics in weakly and strongly interacting NiO nanoparticles

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