Long-range order of Ni2+ and Mn4+ and ferromagnetism in multiferroic (Bi0.9La0.1)2NiMnO6 thin films

Long-range order of Ni2+ and Mn4+ and ferromagnetism in multiferroic (Bi0.9La0.1)2NiMnO6 thin films

Epitaxial thin films of biferroic Bi1−xLax 2NiMnO6 have been grown on SrTiO3 001 substrates. High resolution electron microscopy, energy-loss spectroscopy and synchrotron radiation have been used to demonstrate that, under appropriate growth conditions, stoichiometric, and fully oxidized thin films...

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Hauptverfasser: Langenberg Pérez, Eric, Rebled, J. M. (José Manuel), Estradé Albiol, Sònia, Daumont, C. J. M, Ventura, J, Coy, L. E, Polo Trasancos, Ma. del Carmen, García-Cuenca Varona, María Victoria, Ferrater Martorell, Cèsar, Noheda, B, Peiró Martínez, Francisca, Varela Fernández, Manuel, 1956, Fontcuberta i Griñó, Josep
Format: Artikel
Sprache:eng
Schlagworte:
Ferroelectricitat
Ferroelectricity
Ferromagnetic materials
Ferromagnetism
Ferromagnetisme
Materials ferromagnètics
Pel·lícules fines
Thin films
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Zusammenfassung:Epitaxial thin films of biferroic Bi1−xLax 2NiMnO6 have been grown on SrTiO3 001 substrates. High resolution electron microscopy, energy-loss spectroscopy and synchrotron radiation have been used to demonstrate that, under appropriate growth conditions, stoichiometric, and fully oxidized thin films with long-range order of Ni2+ and Mn4+ ions can be obtained, despite the presence of randomly distributed dissimilar cations Bi, La at the A-site. This ordering leads to Ni2+ O Mn4+ ferromagnetic interactions and its preservation in thin films is key for implementation of these biferroic materials in practical devices.
ISSN:0021-8979