Interatomic force constants and normal modes of GaAs

  • Cao X
  • 2

    Readers

    Mendeley users who have this article in their library.
  • 2

    Citations

    Citations of this article.

Abstract

By using group theoretical methods, the dynamical equations for GaAs can be simplified and the analytical solutions for the normal modes of all transverse and longitudinal branches and elastic constants can be deduced directly. The interactions are assumed to consist of Coulomb forces with an effective charge and a general force field up to and including seventh neighbors. The effective charge, the force constants and the normal modes along Δ, Σ and Λ are calculated from the experimental frequencies and elastic constants. The results are discussed and a comparison with previous calculations is presented. © 1986.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • Xiaoping Cao

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free