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Large magnetoresistances and non-Ohmic conductivity in EuWO[1+x]N[2-x]

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posted on 02.08.2016 by Anna Kusmartseva, Minghui Yang, Judith Oro-Sole, A.M. Bea, Alba Fuertes, J. Paul Attfield
The magnetic field and voltage dependent electronic transport properties of EuWO[1+x]N[2-x] ceramics are reported. Large negative magnetoresistances are observed at low temperatures, up to 70% in the least doped (x=0.09) material. Non-Ohmic conduction emerges below the 12 K Curie transition. This is attributed to a microstructure of ferromagnetic conducting and antiferromagnetic insulating regions resulting from small spatial fluctuations in the chemical doping.

Funding

This work was supported by the Ministerio de Ciencia e Innovacion Grant Nos. MAT2008-04587 and PR2008-0164 and the Generalitat de Catalunya, Spain, and the Royal Society, EPSRC, and the Leverhulme Trust, U.K.

History

School

  • Science

Department

  • Physics

Published in

Applied Physics Letters

Volume

95

Issue

2

Citation

KUSMARTSEVA, A. ... et al., 2009. Large magnetoresistances and non-Ohmic conductivity in EuWO[1+x]N[2-x]. Applied Physics Letters, 95 (2), no. 022110.

Publisher

© American Institute of Physics

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2009

Notes

This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in KUSMARTSEVA, A. ... et al., 2009. Large magnetoresistances and non-Ohmic conductivity in EuWO[1+x]N[2-x]. Applied Physics Letters, 95 (2), no. 022110 and may be found at: http://dx.doi.org/10.1063/1.3180813.

ISSN

0003-6951

eISSN

1077-3118

Language

en

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