Signatures of a two-dimensional ferromagnetic electron gas at the La_(0.7)Sr_(0.3)MnO_(3)/SrTiO_(3) interface arising from orbital reconstruction

The magnetoresistance of La0.7Sr0.3MnO3/SrTiO3La0.7Sr0.3MnO3/SrTiO3 superlattices with magnetic field rotating out-of-plane shows unexpected peaks for in-plane fields. Resistivity calculations with spin–orbit coupling reveal that orbital reconstruction at the manganite interface leads to a 2D ferrom...

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Detalles Bibliográficos
Autores: Nemes, Norbert Marcel, Calderón, M. J., Beltrán Fínez, Juan Ignacio, Bruno, Flavio Yair, Garcia Barriocanal, Javier, Sefrioui, Zouhair, León Yebra, Carlos, García Hernández, M., Muñoz, María del Carmen, Brey, L., Santamaría Sánchez-Barriga, Jacobo
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/34700
Acceso en línea:https://hdl.handle.net/20.500.14352/34700
Access Level:acceso abierto
Palabra clave:537
Anisotropic magnetoresistance
Thin films
Oxides
Superlattices
Transport
Surface
Order.
Electricidad
Electrónica (Física)
2202.03 Electricidad
Descripción
Sumario:The magnetoresistance of La0.7Sr0.3MnO3/SrTiO3La0.7Sr0.3MnO3/SrTiO3 superlattices with magnetic field rotating out-of-plane shows unexpected peaks for in-plane fields. Resistivity calculations with spin–orbit coupling reveal that orbital reconstruction at the manganite interface leads to a 2D ferromagnetic electron gas coupled antiparallel to the manganite “bulk”. These orbital and magnetic reconstructions are supported by X-ray linear dichroism and ab initio calculations.

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