Linear-response theory and lattice dynamics: a muffin-tin orbital approach

Details Linear-response theory and lattice dynamics: a muffin-tin orbital approach Linear-response theory and lattice dynamics: a muffin-tin orbital approach

1996-04-19

arxiv.org/abs/cond-mat/9604125v1

Physics

Condensed Matter

18 pages, Revtex, 2 ps figures, uuencoded, gzip'ed, tar'ed file

Scientific paper

10.1103/PhysRevB.54.16470

A detailed description of a method for calculating static linear-response functions in the problem of lattice dynamics is presented. The method is based on density functional theory and it uses linear muffin-tin orbitals as a basis for representing first-order corrections to the one-electron wave functions. As an application we calculate phonon dispersions in Si and NbC and find good agreement with experiments.

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