Investigation of phonon anomalies in intermediate valence compounds SmS and Sm0·65Y0·25S
Prafulla Kumar Jha Sankar P Sanyal
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Phonon anomalies in two intermediate valence compounds (IVC), SmS and Sm0·75Y0·25S have been investigated using breathing shell model (BSM). The BSM includes breathing motion of electron shells of the rare earth atom due tof−d hybridization. The phonon dispersion curves of IVC, calculated from the present model, agree well with the measured data. One-phonon density of states calculated from the present model compares well with the Raman spectra.
Prafulla Kumar Jha1 Sankar P Sanyal1
Volume 97, 2023
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