Spin-charge-lattice coupling through resonant multimagnon excitations in multiferroic BiFeO{sub 3}.
Spin-charge-lattice coupling mediated by multimagnon processes is demonstrated in multiferroic BiFeO{sub 3}. 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 Neel temperature. These are shown to be collective interactions between on-site Fe d-d electronic resonance, phonons, and multimagnons.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 958274
- Report Number(s):
- ANL/MSD/JA-64554; APPLAB; TRN: US1000190
- Journal Information:
- Appl. Phys. Lett., Vol. 94, Issue 2009; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- ENGLISH
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