Electromagnons in multiferroics probed by Raman light scattering comparison to neutron scattering investigations

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dc.contributor.authorRovillain, Pen_AU
dc.contributor.authorGraham, PJen_AU
dc.contributor.authorReynolds, Nen_AU
dc.contributor.authorNarayanan, Nen_AU
dc.contributor.authorGallis, Yen_AU
dc.contributor.authorSacuto, Aen_AU
dc.contributor.authorMeasson, MAen_AU
dc.contributor.authorSakata, Hen_AU
dc.contributor.authorMcIntyre, GJen_AU
dc.contributor.authorMulders, AMen_AU
dc.contributor.authorUlrich, Cen_AU
dc.contributor.authorCazayous, Men_AU
dc.date.accessioned2022-04-08T01:19:59Zen_AU
dc.date.available2022-04-08T01:19:59Zen_AU
dc.date.issued2012-11-15en_AU
dc.date.statistics2021-12-20en_AU
dc.description.abstractIn multiferroic materials the two antagonistic effects, magnetic and ferroelectric orders, exist simultaneously. The switching of these orders is known as magnetoelectric coupling. Thereby, magnetoelectric materials can potentially be used to control spins or electric polarization with the application of an external electric or magnetic field, respectively. This makes them promising candidates for applications in spintronics or magnonics that use magnetic excitations for information processing. BiFe03, is the rare case where both orders coexist at room temperature. Using Raman scattering, we show that in BiFe03 the spin-wave energy can be tuned electrically by over 30%, in a non-volatile way with virtually no power dissipation. In TbMnO3 (and RMn2O5) the coupling of the orders gives rise to a hybrid excitation: the electromagnon. Electromagnons are spin wave excitations which possess an electric dipole. We have identified the magnetic excitation underneath the electromagnon by comparison with neutron measurement and further the phonon mode at the origin of the dipole activity. We have extended our investigations to Raman scattering and inelastic neutron scattering on DyMn03. The combination of both techniques offers the opportunity to obtain more information on the electromagnetic interaction in this type of multiferroic material.en_AU
dc.identifier.citationRovillain, P., Graham, P., Reynolds, N., Narayanan, N., Gallis, Y., Sacuto, A., Measson, M. A., Sakata, H., McIntyre, G., Mulders, A. M., Ulrich, C., Cazayous, M. (2012). Electromagnons in multiferroics probed by Raman light scattering comparison to neutron scattering investigations. Presented at AINSE-ANBUG 201210th Neutron Scattering Symposium (AANSS), Sydney, NSW (Australia), 7-9 Nov. In 10th AINSE-ANBUG Neutron Scattering Symposium (AANSS) 2012,( pp. 22).en_AU
dc.identifier.conferenceenddate9 November 2012en_AU
dc.identifier.conferencename10th AINSE-ANBUG Neutron Scattering Symposium (AANSS)en_AU
dc.identifier.conferenceplaceSydney, NSW, Australiaen_AU
dc.identifier.conferencestartdate7 November 2012en_AU
dc.identifier.pagination22en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/12963en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Nuclear Science and Engineeringen_AU
dc.subjectSuperfluidityen_AU
dc.subjectSuperconductivityen_AU
dc.subjectElectrical propertiesen_AU
dc.subjectInelastic scatteringen_AU
dc.subjectMagnetic fieldsen_AU
dc.subjectNeutron beamsen_AU
dc.subjectRaman spectroscopyen_AU
dc.subjectScatteringen_AU
dc.subjectSpin wavesen_AU
dc.titleElectromagnons in multiferroics probed by Raman light scattering comparison to neutron scattering investigationsen_AU
dc.typeConference Abstracten_AU
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