A. Gupta, R. Gross, et al.
SPIE Advances in Semiconductors and Superconductors 1990
Neutron scattering techniques have been used to measure the phonon dispersion curves for SmS in both the semiconducting and the metallic mixed-valent state. Large softening of the longitudinal acoustic phonon branches was found in the mixed-valent state, particularly for the [111] direction. It is apparent there is a strong coupling between the valence fluctuations and the phonons in the mixed-valent phase of SmS. © 1982 The American Physical Society.
A. Gupta, R. Gross, et al.
SPIE Advances in Semiconductors and Superconductors 1990
Frank R. Libsch, Takatoshi Tsujimura
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INFORMS 2021