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Anna Kusmartseva
Anna
Kusmartseva
Minghui Yang
Minghui
Yang
Judith Oro-Sole
Judith
Oro-Sole
A.M. Bea
A.M.
Bea
Alba Fuertes
Alba
Fuertes
J. Paul Attfield
J. Paul
Attfield
Large magnetoresistances and non-Ohmic conductivity in EuWO[1+x]N[2-x]
Loughborough University
2016
untagged
Physical Sciences not elsewhere classified
2016-08-02 09:34:13
Journal contribution
https://repository.lboro.ac.uk/articles/journal_contribution/Large_magnetoresistances_and_non-Ohmic_conductivity_in_EuWO_1_x_N_2-x_/9409673
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.