Electron-phonon coupling is considered in the strong coupling approximation in order to explain the formation of the charge-density-wave state. The theory gives the expression for the critical temperature as a function of the effective electron-phonon coupling, and the isotopic effect in the critical temperature can be evaluated.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Materials Science(all)
- Condensed Matter Physics