27 citations · 54 across the 4 of their papers we have counts for
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cond-mat.mtrl-sci2004
Two-phonon infrared processes in semiconductors
Hadley M. Lawler, Eric L. Shirley
We report our detailed calculation of the infrared spectra of GaAs and GaP from first principles, and similar ongoing efforts for diamond-type spectra, which have recently been cal…
cond-mat.mtrl-sci2004
Anharmonic effects on infrared spectra of GaAs and GaP
Hadley M. Lawler, Eric L. Shirley
With a study of bulk GaAs and GaP, we report detailed infrared spectra and their temperature dependence from first principles. Fine features and low-temperature trends in the predi…
cond-mat.mtrl-sci2004★ 1 cited
Dynamical Matrices and Interatomic-Force Constants from Wave-Commensurate Supercells
Hadley M. Lawler, Eric K. Chang, Eric L. Shirley
We apply standard, first-principles calculations to a complete treatment of lattice dynamics in the harmonic approximation. The algorithm makes use of the straightforward ``frozen-…