2134/22159 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.