Signatures of a two‐dimensional ferromagnetic electron gas at the La0.7Sr0.3MnO3/SrTiO3 interface arising from orbital reconstruction

The magnetoresistance of La0.7Sr0.3MnO3/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...

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Bibliographic Details
Authors: Nemes, Norbert Marcel, Calderón, María José, Beltrán Fínez, Juan Ignacio, Bruno, Flavio Yair, García‐Barriocanal, Javier, Sefrioui Khamali, Zouhair, León Yebra, Carlos, García Hernández, Mar, Muñoz, María Carmen, Brey, Luis, Santamaría Sánchez-Barriga, Jacobo
Format: article
Publication Date:2014
Country:España
Institution:Universidad Complutense de Madrid (UCM)
Repository:Docta Complutense
Language:English
OAI Identifier:oai:docta.ucm.es:20.500.14352/95731
Online Access:https://hdl.handle.net/20.500.14352/95731
Access Level:Open access
Keyword:538.9
Anisotropic Magnetoresistance
Thin-Films
Oxides
Uperlattices
Transport
Surface
Order
Física del estado sólido
2211 Física del Estado Sólido
Description
Summary:The magnetoresistance of La0.7Sr0.3MnO3/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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