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Sr 2 Fe 1+x Re 1−x O 6 double perovskites: magnetoresistance and (magneto)thermopower

Abstract : Polycrystalline Sr2Fe1+xRe1−xO6 samples have been synthesized and structurally characterized by X-ray powder diffraction, transmission electron microscopy and X-ray absorption spectroscopy. Resistivity strongly increases with x, but a large and negative magnetoresistance persists up to x = 0.33. This is discussed considering the charge delocalization in iron and rhenium t2g orbitals.
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https://hal-normandie-univ.archives-ouvertes.fr/hal-02174460
Contributor : Elisabeth van T Hof <>
Submitted on : Friday, July 5, 2019 - 10:04:42 AM
Last modification on : Thursday, March 5, 2020 - 6:14:01 PM

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Antoine Maignan, Christine Martin, Oleg Lebedev, Jonas Sottmann, Lucie Nataf, et al.. Sr 2 Fe 1+x Re 1−x O 6 double perovskites: magnetoresistance and (magneto)thermopower. Chemical Communications, Royal Society of Chemistry, 2019, 55 (42), pp.5878-5881. ⟨10.1039/c9cc00926d⟩. ⟨hal-02174460⟩

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