Abstract
The first direct measurement of the modulation of the magnetic superexchange parameter J by optical phonons is reported. High-pressure Raman scattering studies of the model compound FeBO 3 reveal an unexpectedly large interaction between a (BO 3 ) 3- internal mode and spin-pair excitations. By pressure tuning J, resonant decay of the phonon into the two-magnon continuum and associated mixing were observed yielding a phonon-magnon-pair coupling constant g≃(0.15-0,20)J
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
