A planar force-constant model for phonons in wurtzite GaN and AlN: Application to hexagonal GaN/AlN superlattices

Details A planar force-constant model for phonons in wurtzite GaN and AlN: Application to hexagonal GaN/AlN superlattices A planar force-constant model for phonons in wurtzite GaN and AlN: Application to hexagonal GaN/AlN superlattices

1998-12-17

arxiv.org/abs/cond-mat/9812293v1

Physics

Condensed Matter

Soft Condensed Matter

10 pages, 4 figures, RevTex

Scientific paper

A planar force-constant model is developed for longitudinal phonons of
wurtzite GaN and AlN propagating along the [0001] direction. The proposed model
is then applied to the study of the phonon modes in hexagonal GaN/AlN
superlattices in the longitudinal polarization. The confinement of the
superlattice phonon mode is discussed.

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