文献类型：期刊文献

英文题名：Theoretical study on the electronic and optical properties of bulk and surface (001) InxGa1-xAs

作者：Liu, XueFei Ding, Zhao Luo, ZiJiang Zhou, Xun Wei, JieMin Wang, Yi Guo, Xiang Lang, QiZhi

第一作者：Liu, XueFei

通信作者：Ding, Zhao

机构：[1] College of Big Data and Information Engineering, Guizhou University, Guiyang, 550025, China; [2] College of Physics and Electronic science, Guizhou Normal University, Guiyang, 550025, China; [3] College of Information, Guizhou Finance and Economics University of, Guiyang, 550025, China; [4] Guizhou Institute of Technology, Guiyang, 550002, China

第一机构：College of Big Data and Information Engineering, Guizhou University, Guiyang, 550025, China

通信机构：College of Big Data and Information Engineering, Guizhou University, Guiyang, 550025, China

年份：2018

卷号：537

起止页码：68-76

外文期刊名：Physica B: Condensed Matter

收录：EI(收录号：20180704789922);Scopus(收录号：2-s2.0-85041521145)

语种：英文

外文关键词：Dielectric materials - Refractive index - Indium alloys - Surface properties - Indium - Gallium alloys - Semiconductor alloys - Calculations - III-V semiconductors

摘要：The optical properties of surface and bulk InxGa1-xAs materials are compared systematically first time in this paper. The band structures, density of states and optical properties including dielectric function, reflectivity, absorption coefficient, loss function and refractive index of bulk and surface InxGa1-xAs materials are investigated by first-principles based on plane-wave pseudo-potentials method within the LDA approximation. The results agree well with the available theoretical and experimental studies and indicate that the electronic and optical properties of bulk and surface InxGa1-xAs materials are much different, and the results show that the considered optical properties of the both materials vary with increasing indium composition in an opposite way. The calculations show that the optical properties of surface In0.75Ga0.25As material are unexpected to be far from the other two indium compositions of surface InxGa1-xAs materials while the optical properties of bulk InxGa1-xAs materials vary with increasing indium composition in an expected regular way. ? 2018 Elsevier B.V.