Strain influence on III-nitrides: Ab initio studies of structural, lattice-dynamical, and dielectric properties

被引：0
作者：
Wagner, JM [1 ]
Bechstedt, F [1 ]
机构：
[1] Univ Jena, Inst Festkorpertheorie & Theoret Opt, D-07743 Jena, Germany
来源：
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 1999年 / 216卷 / 01期
关键词：
D O I：
10.1002/(SICI)1521-3951(199911)216:1<793::AID-PSSB793>3.0.CO;2-X
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We present results of first-principles calculations concerning structural, dielectric, and lattice-dynamical properties of strained GaN and AlN in wurtzite structure. In particular, we consider the symmetry-conserving biaxial strain along the c-axis. Its influence on the lattice parameters, the dielectric constants, the dynamical effective charges, and the phonon frequencies is studied in detail. In addition, we investigate the variation of the dielectric and lattice-dynamical properties with the internal strain.
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页码：793 / 798
页数：6
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