Uniform magnetic excitations in NiO nanoparticles

C.R.H. Bahl; L.T. Kuhn; K. Lefmann; P.-A. Lindgård; S. Mørup

doi:10.1016/j.physb.2006.05.234

Uniform magnetic excitations in NiO nanoparticles

C.R.H. Bahl
, L.T. Kuhn
, K. Lefmann
, P.-A. Lindgård
, S. Mørup

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

Abstract

A sample of isolated disc shaped NiO nanoparticles was studied at the RITA-II triple axis spectrometer at SINQ (PSI) using the newly implemented multi-analyser blade imaging mode. The particles were 13 nm in diameter and had a thickness of about 2.5 nm. A non-dispersive spin excitation was observed at the antiferromagnetic ((1)/(2) (1)/(2) (1)/(2)) reflection at a scattering vector of kappa = 1.30 angstrom(-1), at an energy of 2 0.51 +/- 0.02 meV. This is shown to be due to uniform magnetic excitations in the nanoparticles. (c) 2006 Elsevier B.V. All rights reserved.

Original language	English
Journal	Physica B: Condensed Matter
Volume	385-386
Issue number	Part 1
Pages (from-to)	398-400
ISSN	0921-4526
DOIs	https://doi.org/10.1016/j.physb.2006.05.234
Publication status	Published - 2006
Event	8th International Conference on Neutron Scattering - Sydney, Australia Duration: 27 Nov 2005 → 2 Dec 2005 Conference number: 8

Conference

Conference	8th International Conference on Neutron Scattering
Number	8
Country/Territory	Australia
City	Sydney
Period	27/11/2005 → 02/12/2005

Keywords

Nanomagnetism
Uniform magnetic excitations
Uncompensated spins

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10.1016/j.physb.2006.05.234

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title = "Uniform magnetic excitations in NiO nanoparticles",

abstract = "A sample of isolated disc shaped NiO nanoparticles was studied at the RITA-II triple axis spectrometer at SINQ (PSI) using the newly implemented multi-analyser blade imaging mode. The particles were 13 nm in diameter and had a thickness of about 2.5 nm. A non-dispersive spin excitation was observed at the antiferromagnetic ((1)/(2) (1)/(2) (1)/(2)) reflection at a scattering vector of kappa = 1.30 angstrom(-1), at an energy of 2 0.51 +/- 0.02 meV. This is shown to be due to uniform magnetic excitations in the nanoparticles. (c) 2006 Elsevier B.V. All rights reserved. ",

keywords = "Energiteknologier p{\aa} vej, Nanomagnetism, Uniform magnetic excitations, Uncompensated spins",

author = "C.R.H. Bahl and L.T. Kuhn and K. Lefmann and P.-A. Lindg{\aa}rd and S. M{\o}rup",

year = "2006",

doi = "10.1016/j.physb.2006.05.234",

language = "English",

volume = "385-386",

pages = "398--400",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

number = "Part 1",

note = "8th International Conference on Neutron Scattering, ICNS 2005 ; Conference date: 27-11-2005 Through 02-12-2005",

}

TY - GEN

T1 - Uniform magnetic excitations in NiO nanoparticles

AU - Bahl, C.R.H.

AU - Kuhn, L.T.

AU - Lefmann, K.

AU - Lindgård, P.-A.

AU - Mørup, S.

N1 - Conference code: 8

PY - 2006

Y1 - 2006

N2 - A sample of isolated disc shaped NiO nanoparticles was studied at the RITA-II triple axis spectrometer at SINQ (PSI) using the newly implemented multi-analyser blade imaging mode. The particles were 13 nm in diameter and had a thickness of about 2.5 nm. A non-dispersive spin excitation was observed at the antiferromagnetic ((1)/(2) (1)/(2) (1)/(2)) reflection at a scattering vector of kappa = 1.30 angstrom(-1), at an energy of 2 0.51 +/- 0.02 meV. This is shown to be due to uniform magnetic excitations in the nanoparticles. (c) 2006 Elsevier B.V. All rights reserved.

AB - A sample of isolated disc shaped NiO nanoparticles was studied at the RITA-II triple axis spectrometer at SINQ (PSI) using the newly implemented multi-analyser blade imaging mode. The particles were 13 nm in diameter and had a thickness of about 2.5 nm. A non-dispersive spin excitation was observed at the antiferromagnetic ((1)/(2) (1)/(2) (1)/(2)) reflection at a scattering vector of kappa = 1.30 angstrom(-1), at an energy of 2 0.51 +/- 0.02 meV. This is shown to be due to uniform magnetic excitations in the nanoparticles. (c) 2006 Elsevier B.V. All rights reserved.

KW - Energiteknologier på vej

KW - Nanomagnetism

KW - Uniform magnetic excitations

KW - Uncompensated spins

U2 - 10.1016/j.physb.2006.05.234

DO - 10.1016/j.physb.2006.05.234

M3 - Conference article

SN - 0921-4526

VL - 385-386

SP - 398

EP - 400

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - Part 1

T2 - 8th International Conference on Neutron Scattering

Y2 - 27 November 2005 through 2 December 2005

ER -

Uniform magnetic excitations in NiO nanoparticles

Abstract

Conference

Keywords

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