Structural anomalies at the magnetic transition in centrosymmetric BiMnO$_3$

The structural properties of BiMn$O_3$ were determined from neutron powder diffraction data as a function of temperature and magnetic field. The structure at all temperatures was found to be centrosymmetric with space group $C2/c$, which is incompatible with ferroelectricity. At T$_C\simeq 100 K$, w...

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Detalhes bibliográficos
Principais autores: Montanari, E, Calestani, G, Righi, L, Gilioli, E, Bolzoni, F, Knight, K, Radaelli, P
Formato: Journal article
Idioma:English
Publicado em: 2007