Possible Observation of Cycloidal Electromagnons inBiFeO3

2007/12/18 by M. Cazayous, Yann Gallais, Y. Gallais +5 · 209 citations
Engineering · Materials Science · Physics and Astronomy · #Condensed matter physics #Ferroelectric and Piezoelectric Materials #Ferroelectricity #Ferromagnetism #Geophysics and Sensor Technology #Inelastic neutron scattering #Inelastic scattering #Lithium niobate #Magnon #Multiferroics and related materials #Optics #Physics #Quantum mechanics #Scattering #cond-mat.str-el

paper · pdf · doi:10.1103/physrevlett.101.037601

published in Physical Review Letters 101(3), 037601 (American Physical Society)

arxiv created 2007/12/18 · openalex publication_date 2008/07/17 · arxiv updated 2010/10/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We unravel the magnon spectra of BiFeO3 by means of low-energy inelastic light scattering. We show the existence of two species of magnons corresponding to spin wave excitations in and out of the cycloidal plane. These excitations might be interpreted as electromagnon modes. The present observations present an unique opportunity to study the competition between ferroelectric and magnetic orders.

Citations

• Spiral magnetic ordering in bismuth ferrite

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