Large magnetoresistances and non-Ohmic conductivity in EuWO1+xN2-x

A. Kusmartseva; M. Yang; J. Oro-Sole; A. M. Bea; A. Fuertes; J. P. Attfield; Paul Attfield

doi:10.1063/1.3180813

Large magnetoresistances and non-Ohmic conductivity in EuWO1+xN2-x

A. Kusmartseva, M. Yang, J. Oro-Sole, A. M. Bea, A. Fuertes, J. P. Attfield, Paul Attfield

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

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.

Original language	English
Article number	022110
Pages (from-to)	-
Number of pages	3
Journal	Applied Physics Letters
Volume	95
Issue number	2
DOIs	https://doi.org/10.1063/1.3180813
Publication status	Published - 13 Jul 2009

Keywords

antiferromagnetic materials
ceramics
Curie temperature
doping
europium compounds
ferromagnetic materials
giant magnetoresistance
magnetisation
OXYNITRIDES

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10.1063/1.3180813

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2 Finished

High Pressure Studies of Charge Ordered Materials
Kamenev, K., Attfield, P. & Monthoux, P.
UK-based charities
1/03/08 → 28/05/11
Project: Research
New Oxynitrate Materials from High Prsessure Sythesis
Attfield, P.
Other (Learned Society)
1/04/07 → 30/04/10
Project: Research

Cite this

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AU - Fuertes, A.

AU - Attfield, J. P.

AU - Attfield, Paul

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KW - antiferromagnetic materials

KW - ceramics

KW - Curie temperature

KW - doping

KW - europium compounds

KW - ferromagnetic materials

KW - giant magnetoresistance

KW - magnetisation

KW - OXYNITRIDES

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Large magnetoresistances and non-Ohmic conductivity in EuWO1+xN2-x

Abstract

Keywords

Access to Document

High Pressure Studies of Charge Ordered Materials

New Oxynitrate Materials from High Prsessure Sythesis

Cite this