Abstract
Spin-charge-lattice coupling mediated by multimagnon processes is demonstrated in multiferroic BiFe O3. Experimental evidence of two- and three-magnon excitations as well as multimagnon coupling at electronic energy scales and high temperatures are reported. Temperature dependent Raman experiments show up to five resonant enhancements of the two-magnon excitation below the Ńel temperature. These are shown to be collective interactions between on-site Fe d-d electronic resonance, phonons, and multimagnons.
Original language | English (US) |
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Article number | 161905 |
Journal | Applied Physics Letters |
Volume | 94 |
Issue number | 16 |
DOIs | |
State | Published - 2009 |
Funding
We acknowledge funding from the National Science Foundation Grant Nos. DMR-0512165, DMR-0507146, DMR-0820404, DMR-0507146, DMR-0820404, and DMR-0602986, DMR-0520513,DMR-0213623,and DMR-0520471 the MSD, BES U.S. Department of Energy under Contract Nos. DE-AC02-05CH11231 and DE-FG02-01ER45885 and the DOE/BES under Contract No. DE-AC02-06CH11357.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)