Sr 2 Fe 1+: X Re 1- x O 6 double perovskites: Magnetoresistance and (magneto)thermopower

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. Thi...

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Autores: Maignan, Antoine; Martin, Christine; Lebedev, Oleg; Sottmann, Jonas; Nataf, Lucie; Baudelet, François; Hébert, Sylvie; Carbonio, Raul Ernesto
Tipo de documento: Artículo
Estado:Published version
Fecha de publicación:2019
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Lenguaje:Inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/125448
Acceso en línea:http://hdl.handle.net/11336/125448
Nivel de acceso:Acceso abierto
Palabra clave:THERMOPOWER
PEROVSKITE
MAGNETORESISTANCE
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
Sumario: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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