Journal
PHYSICAL REVIEW B
Volume 64, Issue 18, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.64.184306
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We present a calculation of phonon frequencies and electron-phonon coupling constants obtained from linear-response (LIZ) theory within the full-potential linearized augmented plane-wave (LAPW) method. We provide a formalism which allows us to treat LR theory in an all-electron manner. For the electron-phonon coupling matrix elements we include all correction terms, either arising due to the variational solution of the Kohn-Sham equations or due to the LAPW specific basis set. The method is applied to bee sulfur and hcp beryllium. Our LR results are in excellent agreement with data obtained by the supercell approach.
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