Inelastic neutron scattering in multiferroic materials
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Date
2012-02-02
Journal Title
Journal ISSN
Volume Title
Publisher
Australian Institute of Physics
Abstract
In order to obtain a deeper understanding of the spin interactions between the magnetic moments of the Tb-ions and the Mn-ions in multiferroic TbMnO3, inelastic neutron scattering experiments (at the ILL in Grenoble and the Bragg Institute at ANSTO) are performed on isostructural, non-multiferroic TbVO3. Acoustic and optical magnon branches are identified at energies comparable to the spin wave excitation spectrum of YVO3. In addition, a crystal field excitation arising from the Tb-ions is identified at the energy of 14.9 meV. This is substantially larger than the crystal field excitation at 4.5 meV in TbMnO3.
Description
Keywords
Angular momentum, Australian organizations, Charged particles, Coherent scattering, Dielectric materials, Diffraction, Ions, Materials, National organizations, Particle properties, Quasi particles
Citation
Reynolds, N. M., Graham, P., Mulders, A. M., McIntyre, G., Danilkin, S., Fujioka, J., Tokura, Y., Keimer, B., Reehuis, M & Ulrich, C. (2012). Inelastic neutron scattering in multiferroic materials. Poster presented to the 36th Annual Condensed Matter and Materials Meeting, Wagga 2012, Charles Sturt University, Wagga Wagga, NSW, 31st January – 3rd February, 2012. Retrieved from: https://physics.org.au/wp-content/uploads/cmm/2012/p18.pdf