Magnetic properties of the double perovskites A2FeMoO6; A = Ca, Sr, Ba

R. P. Borges; R. M. Thomas; C. Cullinan; J. M.D. Coey; R. Suryanarayanan; L. Ben-Dor; L. Pinsard-Gaudart; A. Revcolevschi

doi:10.1088/0953-8984/11/40/104

Magnetic properties of the double perovskites A₂FeMoO₆; A = Ca, Sr, Ba

R. P. Borges, R. M. Thomas, C. Cullinan, J. M.D. Coey, R. Suryanarayanan, L. Ben-Dor, L. Pinsard-Gaudart, A. Revcolevschi

Research output: Contribution to journal › Review article › peer-review

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Abstract

The double-perovskite oxides Ca₂FeMoO₆, Sr₂FeMoO₆ and Ba₂FeMoO₆ show evidence of ferromagnetic metallic behaviour, with Curie temperatures of 345-426 K and saturation magnetization of 3.5-3.9 μ_B /formula unit. Ceramics show little anisotropic magnetoresistance, but the low-field isotropie negative magnetoresistance of Sr₂FeMoC₆ is 7% in l T at room temperature and reaches 15% at 77 K. An effect of about 1% is found in 20 mT at room temperature in both ceramics and pressed powders of this compound.

Original language	English
Pages (from-to)	L445-L450
Journal	Journal of Physics Condensed Matter
Volume	11
Issue number	40
DOIs	https://doi.org/10.1088/0953-8984/11/40/104
State	Published - 11 Oct 1999
Externally published	Yes

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title = "Magnetic properties of the double perovskites A2FeMoO6; A = Ca, Sr, Ba",

abstract = "The double-perovskite oxides Ca2FeMoO6, Sr2FeMoO6 and Ba2FeMoO6 show evidence of ferromagnetic metallic behaviour, with Curie temperatures of 345-426 K and saturation magnetization of 3.5-3.9 μB /formula unit. Ceramics show little anisotropic magnetoresistance, but the low-field isotropie negative magnetoresistance of Sr2FeMoC6 is 7% in l T at room temperature and reaches 15% at 77 K. An effect of about 1% is found in 20 mT at room temperature in both ceramics and pressed powders of this compound.",

author = "Borges, {R. P.} and Thomas, {R. M.} and C. Cullinan and Coey, {J. M.D.} and R. Suryanarayanan and L. Ben-Dor and L. Pinsard-Gaudart and A. Revcolevschi",

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T1 - Magnetic properties of the double perovskites A2FeMoO6; A = Ca, Sr, Ba

AU - Borges, R. P.

AU - Thomas, R. M.

AU - Cullinan, C.

AU - Coey, J. M.D.

AU - Suryanarayanan, R.

AU - Ben-Dor, L.

AU - Pinsard-Gaudart, L.

AU - Revcolevschi, A.

PY - 1999/10/11

Y1 - 1999/10/11

N2 - The double-perovskite oxides Ca2FeMoO6, Sr2FeMoO6 and Ba2FeMoO6 show evidence of ferromagnetic metallic behaviour, with Curie temperatures of 345-426 K and saturation magnetization of 3.5-3.9 μB /formula unit. Ceramics show little anisotropic magnetoresistance, but the low-field isotropie negative magnetoresistance of Sr2FeMoC6 is 7% in l T at room temperature and reaches 15% at 77 K. An effect of about 1% is found in 20 mT at room temperature in both ceramics and pressed powders of this compound.

AB - The double-perovskite oxides Ca2FeMoO6, Sr2FeMoO6 and Ba2FeMoO6 show evidence of ferromagnetic metallic behaviour, with Curie temperatures of 345-426 K and saturation magnetization of 3.5-3.9 μB /formula unit. Ceramics show little anisotropic magnetoresistance, but the low-field isotropie negative magnetoresistance of Sr2FeMoC6 is 7% in l T at room temperature and reaches 15% at 77 K. An effect of about 1% is found in 20 mT at room temperature in both ceramics and pressed powders of this compound.

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JO - Journal of Physics Condensed Matter

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Magnetic properties of the double perovskites A₂FeMoO₆; A = Ca, Sr, Ba

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