Large magnetoresistances and non-Ohmic conductivity in EuWO[1+x]N[2-x]
journal contribution
posted on 2016-08-02, 09:34 authored by Anna KusmartsevaAnna Kusmartseva, Minghui Yang, Judith Oro-Sole, A.M. Bea, Alba Fuertes, J. Paul AttfieldThe 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 LettersVolume
95Issue
2Citation
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 PhysicsVersion
- 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
2009Notes
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
0003-6951eISSN
1077-3118Publisher version
Language
- en
