Abstract
Phonon dispersion has been measured in an intermediate-valence-state system. The phonons of intermediate valence ${\mathrm{Sm}}_{0.75}$${\mathrm{Y}}_{0.25}$S are vastly different from those of the SmS and YS constituents. The LA phonons are unusually soft compared to the TA and have anomalous width, particularly for the [111] direction. The LO phonons lie below the TO. Temperature-dependent measurements show that the anomalous phonon properties change with changing valence.
Sign-in/Register to access full text options 
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.
