Induced Ti magnetization at La_(0.7)Sr_(0.3)MnO_(3) and BaTiO_(3) interfaces

In artificial multiferroics hybrids consisting of ferromagnetic La_(0.7)Sr_(0.3)MnO_(3) (LSMO) and ferroelectric BaTiO_(3) epitaxial layers, net Ti moments are found from polarized resonant soft x-ray reflectivity and absorption. The Ti dichroic reflectivity follows the Mn signal during the magnetiz...

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Detalles Bibliográficos
Autores: Liu, Yaohua, Tornos, J., te Velthuis, S. G. E., Freeland, J. W., Zhou, H., Steadman, P., Bencok, P., León Yebra, Carlos, Santamaría Sánchez-Barriga, Jacobo
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/24565
Acceso en línea:https://hdl.handle.net/20.500.14352/24565
Access Level:acceso abierto
Palabra clave:537
Oxide heterostructures
Tunnel-junctions.
Electricidad
Electrónica (Física)
2202.03 Electricidad
Descripción
Sumario:In artificial multiferroics hybrids consisting of ferromagnetic La_(0.7)Sr_(0.3)MnO_(3) (LSMO) and ferroelectric BaTiO_(3) epitaxial layers, net Ti moments are found from polarized resonant soft x-ray reflectivity and absorption. The Ti dichroic reflectivity follows the Mn signal during the magnetization reversal, indicating exchange coupling between the Ti and Mn ions. However, the Ti dichroic reflectivity shows stronger temperature dependence than the Mn dichroic signal. Besides a reduced ferromagnetic exchange coupling in the interfacial LSMO layer, this may also be attributed to a weak Ti-Mn exchange coupling that is insufficient to overcome the thermal energy at elevated temperatures.

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