Hybrid Goldstone modes in multiferroicstudied by polarized inelastic neutron scattering
- 7 April 2009
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 79 (13) , 134409
- https://doi.org/10.1103/physrevb.79.134409
Abstract
We used polarized inelastic neutron-scattering measurements to shed light on the spin-lattice quantum entanglement in multiferroic materials. We report an evidence for hybrid elementary excitations made of a mixing between spin waves and phonons, which can be considered as multiferroic Goldstone modes. We argue that the Dzyaloshinskii-Moriya interaction could be at the origin of this hybridization.Keywords
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