Comparison of the magnetic and crystal field excitations in orthorhombically distorted vanadates and multiferroic manganites
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Date
2012-11-15
Journal Title
Journal ISSN
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Publisher
Australian Institute of Nuclear Science and Engineering
Abstract
Magnetism and ferroelectricity are both exciting physical properties and are used in everyday life in sensors and data storage. In multiferroic materials both properties coexist. They offer a great potential for future technological applications like the increase of data storage capacity or in novel senor applications. We have performed a comparative inelastic neutron scattering (INS) investigation on a series of vanadates, in particularly TbV0{sub 3} DyV0{sub 3}, PrV0{sub 3}, and CeV0{sub 3}, with their multiferroic Mn-counterparts. The Vanadates are isostructural to the multiferroic materials TbMnO{sub 3} and DyMn0{sub 3}, but posses a collinear antiferromagnetic spin arrangement below TN ≈110 K instead of a cycloidal spin structure below TFE 28 ≈K. By using inelastic neutron scattering we have obtained the spin wave dispersion relation and the crystal field excitations of the V-sublattice and the rare earth ions, respectively. The data will be compared with previously obtained INS data of D. Senff on TbMnO{sub 3} and our INS data on DyMnO{sub 3} with the intention of uncovering information about the complex interplay between the magnetic moments of the rare earth ions its role in the formation of the multiferroic phase.
Description
Keywords
Superfluidity, Superconductivity, Antiferroelectric materials, Inelastic scattering, Magnetism, Memory devices, Rare earth alloys, Spin waves
Citation
Reynolds, N., Rovillain, P., Narayanan, N., Fujioka, F., Tokura, Y., Danilkin, S., Mulders, A. M., McIntyre, G., & Ulrich, C. (2012). Comparison of the magnetic and crystal field excitations in orthorhombically distorted vanadates and multiferroic manganites. Presented at AINSE-ANBUG 2012: 10. Neutron Scattering Symposium (AANSS), Sydney, NSW (Australia), 7-9 Nov 2012. In 10th AINSE-ANBUG Neutron Scattering Symposium (AANSS) 2012, (pp. 84).