Theoretical study on the band structure and optical
properties of 4H-SiC
Xu Peng-Shou;Xie Chang-Kun;Pan Hai-Bin;Xu Fa-Qiang
【期刊名称】《中国物理：英文版》 【年(卷),期】2004(013)012
【摘要】We have studied the band structure and optical properties of 4H-SiC by using a full potential linearized augmented plane waves (FPLAPW) method. The density of states (DOS) and band structure are presented. The imaginary part of the dielectric function has been obtained directly from the band structure calculation. With band gap correction, the real part of the dielectric function has been derived from the imaginary part by the Kramers-Kronig (KK) dispersion relationship. The values of reflectivity for normal incidence as a function of photon energy have also been calculated.We found the theoretical results are in good agreement with the experimental data. 【总页数】4页(2126-2129)
【关键词】4H-SiC, FPLAPW, band structure, optical property 【作者】Xu Peng-Shou;Xie Chang-Kun;Pan Hai-Bin;Xu Fa-Qiang
【作者单位】National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China;National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China;National Synchrotron Radiation
Laboratory, University of Science and Technology of China, Hefei 230026, China;National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China 【正文语种】中文 【中图分类】O4 【相关文献】
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Theoretical study on the band structure and optical properties of 4H-SiC
