Valence transitions in rare-earth chalcogenides
- 15 June 1975
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 11 (12), 4763-4767
- https://doi.org/10.1103/physrevb.11.4763
Abstract
The equation of state for samarium chalcogenides is calculated at in a model in which the promotion of an electron from level to band is accompanied by a lattice contraction so that the chemical potential of the electrons is reduced. With the nonlinearity in the lattice contraction as a function of band occupation taken as a variable parameter and using known spectroscopic and elastic data on samarium chalcogenides, an equation of state is calculated which agrees to within 20% with the experimental results.
Keywords
This publication has 13 references indexed in Scilit:
- Temperature- and Composition-Dependent Valence Mixing of Sm in Cation-and Anion-Substituted SmS Observed by X-ray Photoemission SpectroscopyPhysical Review Letters, 1974
- Configuration crossover in 4f substances under pressureJournal of Physics and Chemistry of Solids, 1974
- Rare-earth compounds with mixed valenciesPhilosophical Magazine, 1974
- Valence Mixing and Semiconductor-Metal Transition in the Sm MonochalcogenidesPhysical Review Letters, 1974
- Spectroscopically Observed Valence Mixing in SmS and Related CompoundsPhysical Review Letters, 1974
- Pressure-volume relationship and pressure-induced electronic and structural transformations in Eu and Yb monochalcogenidesPhysical Review B, 1974
- NonmagneticShell in the High-Pressure Phase of SmSPhysical Review Letters, 1971
- Continuous and Discontinuous Semiconductor-Metal Transition in Samarium Monochalcogenides Under PressurePhysical Review Letters, 1970
- Pressure-Induced Metal-Semiconductor Transition andElectron Delocalization in Sm TePhysical Review Letters, 1970
- Interaction in Transition MetalsPhysical Review B, 1967