Physical review. B, Solid state · 1975 · 60 citations · 6 references
Natural SciencesPhysicsCondensed Matter PhysicsMaterials PhysicsSolid State PhysicsElectron-phonon InteractionsElectronic Band StructureCharge-density WavesCoupled Motion EquationsKohn AnomaliesLandau TheoryPhonon DynamicsPhonon-phonon InteractionsPhononsTransition Metal Dichalcogenides
A dynamical Landau theory is proposed to describe the coupled motion of phonons and charge-density waves (CDW) near the CDW instability in transition-metal dichalcogenides. The dynamic structure factor is shown to exhibit a Kohn anomaly and a diverging central mode.
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Exchange and Correlation Instabilities of Simple Metals
A. W. Overhauser · Physical Review · 1968 · 384 citations