To discuss the concentration dependence of coupled mode-frequencies in systems like solid solutions K(H//1// minus //xD//x)//2PO//4 the authors present a RPA theory for an extended Kobayashi model including anharmonic phonons. Using a consistent structure averaging they analyse particular the effect of phonon fluctuations.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics