Biaxial strain dependence of exciton resonance energies in wurtzite GaN
作者： Amane Shikanai , Takashi Azuhata , Takayuki Sota , Shigefusa Chichibu , Akito Kuramata
DOI: 10.1063/1.364074
关键词: Exciton 、 Band gap 、 Condensed matter physics 、 Wurtzite crystal structure 、 Binding energy 、 Chemistry 、 Hamiltonian (quantum mechanics) 、 Valence (chemistry) 、 Effective mass (solid-state physics) 、 Crystal field theory
摘要: We have systematically studied the strain dependence of free-exciton resonance energies in wurtzite GaN by photoreflectance measurements using well-characterized samples. The experimental data been analyzed appropriate Hamiltonian for valence bands and determined values crystal field splitting, spin–orbit shear deformation potential constants, energy gap unstrained crystal. Discussions are given on gaps, effective masses, binding ground states as well valence-band parameters.
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