Monolithic integration of room-temperature multifunctional BaTiO 3 -CoFe 2 O 4 epitaxial heterostructures on Si(001)

The multifunctional (ferromagnetic and ferroelectric) response at room temperature that is elusive in single phase multiferroic materials can be achieved in a proper combination of ferroelectric perovskites and ferrimagnetic spinel oxides in horizontal heterostructures. In this work, lead-free CoFe...

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Detalles Bibliográficos
Autores: Scigaj, Mateusz|||0000-0002-8703-948X, Dix, Nico, Gázquez Alabart, Jaume|||0000-0002-2561-328X, Varela del Arco, María|||0000-0002-6582-7004, Fina, Ignasi|||0000-0003-4182-6194, Domingo Marimon, Neus|||0000-0002-5229-6638, Herranz Casabona, Gervasi|||0000-0003-4633-4367, Skumryev, Vassil Hristov|||0000-0003-1375-4824, Fontcuberta, Josep|||0000-0002-7955-2320, Sánchez Barrera, Florencio|||0000-0002-5314-453X
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:204910
Acceso en línea:https://ddd.uab.cat/record/204910
https://dx.doi.org/urn:doi:10.1038/srep31870
Access Level:acceso abierto
Palabra clave:Materials science
Nanoscience and technology
Physics
Descripción
Sumario:The multifunctional (ferromagnetic and ferroelectric) response at room temperature that is elusive in single phase multiferroic materials can be achieved in a proper combination of ferroelectric perovskites and ferrimagnetic spinel oxides in horizontal heterostructures. In this work, lead-free CoFe 2 O 4 /BaTiO 3 bilayers are integrated with Si(001) using LaNiO 3 /CeO 2 /YSZ as a tri-layer buffer. They present structural and functional properties close to those achieved on perovskite substrates: the bilayers are fully epitaxial with extremely flat surface, and exhibit robust ferromagnetism and ferroelectricity at room temperature.

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