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 / Materials (for Non-textual outputs)

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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Cite this

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title = "Large magnetoresistances and non-Ohmic conductivity in EuWO1+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.",

keywords = "antiferromagnetic materials, ceramics, Curie temperature, doping, europium compounds, ferromagnetic materials, giant magnetoresistance, magnetisation, OXYNITRIDES",

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AU - Kusmartseva, A.

AU - Yang, M.

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AU - Bea, A. M.

AU - Fuertes, A.

AU - Attfield, J. P.

AU - Attfield, Paul

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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.

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.

KW - antiferromagnetic materials

KW - ceramics

KW - Curie temperature

KW - doping

KW - europium compounds

KW - ferromagnetic materials

KW - giant magnetoresistance

KW - magnetisation

KW - OXYNITRIDES

UR - https://www.scopus.com/pages/publications/67650757677

U2 - 10.1063/1.3180813

DO - 10.1063/1.3180813

M3 - Article

SN - 0003-6951

VL - 95

SP - -

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 2

M1 - 022110

ER -

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

Abstract

Keywords / Materials (for Non-textual outputs)

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High Pressure Studies of Charge Ordered Materials

New Oxynitrate Materials from High Prsessure Sythesis

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

Abstract

Keywords / Materials (for Non-textual outputs)

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Projects

High Pressure Studies of Charge Ordered Materials

New Oxynitrate Materials from High Prsessure Sythesis

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