https://scholars.lib.ntu.edu.tw/handle/123456789/580606
標題: | Band calculation of lonsdaleite Ge | 作者: | CHEE-WEE LIU Chen P.-S Fan S.-T Lan H.-S CHEE-WEE LIU |
關鍵字: | Anisotropy; Calculations; Energy gap; Germanium; Strain; Band calculation; Effective mass; Electron effective mass; First principles; Hexagonal planes; Lonsdaleite; Strain response; Uniaxial tensile strain; Tensile strain | 公開日期: | 2017 | 卷: | 50 | 期: | 1 | 來源出版物: | Journal of Physics D: Applied Physics | 摘要: | The band structure of Ge in the lonsdaleite phase is calculated using first principles. Lonsdaleite Ge has a direct band gap at the Γ point. For the conduction band, the Γ valley is anisotropic with the low transverse effective mass on the hexagonal plane and the large longitudinal effective mass along the c axis. For the valence band, both heavy-hole and light-hole effective masses are anisotropic at the Γ point. The in-plane electron effective mass also becomes anisotropic under uniaxial tensile strain. The strain response of the heavy-hole mass is opposite to the light hole. ? 2016 IOP Publishing Ltd. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85013354759&doi=10.1088%2f1361-6463%2f50%2f1%2f015107&partnerID=40&md5=37bdea02215bc4b43819193d6b1d941b https://scholars.lib.ntu.edu.tw/handle/123456789/580606 |
ISSN: | 00223727 | DOI: | 10.1088/1361-6463/50/1/015107 |
顯示於: | 電機工程學系 |
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