Electric-field-induced spin-flop in BiFeO3 single crystals at room-temperature - Condensed Matter > Materials ScienceReportar como inadecuado




Electric-field-induced spin-flop in BiFeO3 single crystals at room-temperature - Condensed Matter > Materials Science - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: Bismuth ferrite, BiFeO3, is the only known room-temperature -multiferroic-material. We demonstrate here, using neutron scattering measurements in highquality single crystals, that the antiferromagnetic and ferroelectric ordersare intimately coupled. Initially in a single ferroelectric state, our crystalshave a canted antiferromagnetic structure describing a unique cycloid. Underelectrical poling, polarisation re-orientation induces a spin flop. We arguehere that the coupling between the two orders may be stronger in the bulk thanthat observed in thin films where the cycloid is absent.



Autor: D. Lebeugle, D. Colson, A. Forget, M. Viret, A. M. Bataille, A. Gukasov

Fuente: https://arxiv.org/



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