Large magnetoresistances and non-Ohmic conductivity in EuWO <inf>1+x</inf>N<inf>2-x</inf>

A. Kusmartseva; M. Yang; J. Oró-Soĺ; A. M. Bea; A. Fuertes; J. P. Attfield

doi:10.1063/1.3180813

Large magnetoresistances and non-Ohmic conductivity in EuWO <inf>1+x</inf>N<inf>2-x</inf>

A. Kusmartseva, M. Yang, J. Oró-Soĺ, A. M. Bea, A. Fuertes, J. P. Attfield

Research output: Contribution to journal › Article › Research › peer-review

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Abstract

The magnetic field and voltage dependent electronic transport properties of EuWO1+xN2-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. © 2009 American Institute of Physics.

Original language	English
Article number	022110
Journal	Applied Physics Letters
Volume	95
Issue number	2
DOIs	https://doi.org/10.1063/1.3180813
Publication status	Published - 1 Jan 2009

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title = "Large magnetoresistances and non-Ohmic conductivity in EuWO 1+xN2-x",

abstract = "The magnetic field and voltage dependent electronic transport properties of EuWO1+xN2-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. {\textcopyright} 2009 American Institute of Physics.",

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AU - Fuertes, A.

AU - Attfield, J. P.

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N2 - The magnetic field and voltage dependent electronic transport properties of EuWO1+xN2-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. © 2009 American Institute of Physics.

AB - The magnetic field and voltage dependent electronic transport properties of EuWO1+xN2-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. © 2009 American Institute of Physics.

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Large magnetoresistances and non-Ohmic conductivity in EuWO <inf>1+x</inf>N<inf>2-x</inf>

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