Structure and magnetism in ultrathin iron oxides characterized by low energy electron microscopy

We have grown epitaxial films a few atomic layers thick of iron oxides on ruthenium. We characterize the growth by low energy electron microscopy. Using selected-area diffraction and intensity-versus-voltage spectroscopy, we detect two distinct phases which are assigned as wustite and magnetite. Spi...

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Detalhes bibliográficos
Autores: Santos, B., Loginova, E., Mascaraque Susunaga, Arantzazu, Schmid, A. K., McCarty, K. F., Figuera, Juan de la
Formato: artículo
Fecha de publicación:2009
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/44464
Acesso em linha:https://hdl.handle.net/20.500.14352/44464
Access Level:acceso abierto
Palavra-chave:538.9
Verwey transition
Epitaxial-Growth
Films
Ru(0001)
Surface
Fe_3O_4
Polarization
Chemistry
Fe
Física de materiales
Descrição
Resumo:We have grown epitaxial films a few atomic layers thick of iron oxides on ruthenium. We characterize the growth by low energy electron microscopy. Using selected-area diffraction and intensity-versus-voltage spectroscopy, we detect two distinct phases which are assigned as wustite and magnetite. Spin-polarized low energy electron microscopy reveals magnetic domain patterns in the magnetite phase at room temperature.

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