Effects of biaxial strain on exciton resonance energies of hexagonal GaN heteroepitaxial layers

被引:106
作者
Chichibu, S
Shikanai, A
Azuhata, T
Sota, T
Kuramata, A
Horino, K
Nakamura, S
机构
[1] WASEDA UNIV, DEPT ELECT ELECT & COMP ENGN, SHINJUKU KU, TOKYO 169, JAPAN
[2] FUJITSU LABS LTD, ATSUGI, KANAGAWA 24301, JAPAN
[3] NICHIA CHEM IND LTD, DEPT RES & DEV, TOKUSHIMA 774, JAPAN
关键词
D O I
10.1063/1.116000
中图分类号
O59 [应用物理学];
学科分类号
摘要
Exciton resonance energies of hexagonal (h-) GaN(0001) epilayers were determined by a combination of high-resolution modulated photoreflectance methods. The results were analyzed thoretically using the Luttinger-Kohn type Hamiltonian for the valence bands under the in-plain biaxial stress, and we obtained the shear deformation potential constants and energy gap in unstrained crystal. Occurrence of the anticrossing of B and C valence bands in tensile biaxially strained h-GaN was suggested. (C) 1996 American Institute of Physics.
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页码:3766 / 3768
页数:3
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