Kuball, M., Hayes, J.M. and Prins, A.D. (2001) Raman Scattering Studies on Single-Crystalline Bulk AlN under High Pressures. Applied Physics Letters, 78, 724-726.
http://dx.doi.org/10.1063/1.1344567

has been cited by the following article:

• TITLE: Dependence of the Structure, Optical Phonon Modes and Dielectric Properties on Pressure in Wurtzite GaN and AlN

  AUTHORS: Huanyou Wang, Yaqi Chen, Yalan Li, Xiangyan He

  KEYWORDS: GaN AlN, Lattice Dynamics, Dielectric, Pressure

  JOURNAL NAME: Advances in Materials Physics and Chemistry, Vol.5 No.8, August 14, 2015

  ABSTRACT: The density functional perturbation theory (DFPT) is employed to study the structure, optical phonon modes and dielectric properties for wurtzite GaN and AlN under hydrostatic pressure. In order to calculate accurately the Born effective charges and high frequency dielectric tensors, we utilize two sum rules to monitor this calculation. The calculated optical phonon frequencies and longitudinal-transverse splitting show an increasing with pressure, whereas the Born effective charges and high frequency dielectric tensors are found to decrease with pressure. In particular, we analysed the reason for discrepancy between this calculation and previous experimental determination of pressure dependence of the LO-TO splitting in AlN. The different pressure behavior of the structural and lattice-dynamical properties of GaN and AlN is discussed in terms of the strengths of the covalent bonds and crystal anisotropy. Our results regarding dielectric Grüneisen parameter are predictions and may serve as a reference.