MODELING ALXGA1-XAS OPTICAL-CONSTANTS AS FUNCTIONS OF COMPOSITION

被引:92
作者
SNYDER, PG
WOOLLAM, JA
ALTEROVITZ, SA
JOHS, B
机构
[1] NASA,LEWIS RES CTR,CLEVELAND,OH 44135
[2] JA WOOLLAM CO,LINCOLN,NE 68508
关键词
D O I
10.1063/1.346921
中图分类号
O59 [应用物理学];
学科分类号
摘要
Three models for the dielectric function εx(hν) of AlxGa1-xAs are reviewed. All are based on measured optical constants at discrete compositions. The validity of each model near critical point energies, and otherwise, is evaluated. Only the energy-shift model is appropriate over the entire available spectrum (1.5-6.0 eV), including the band-gap (E0) region.
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页码:5925 / 5926
页数:2
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