First-principles studies of electronic, optical, and mechanical properties of <italic>γ</italic>-Bi2Sn2O7

First-principles studies of electronic, optical, and mechanical properties of γ-Bi₂Sn₂O₇

Hu Chao-Hao^{1, 2, †,}, Yin Xue-Hui^{1, 2}, Wang Dian-Hui³, Zhong Yan^{1, 2}, Zhou Huai-Ying^{1, 2}, Rao Guang-Hui^{1, 2}

Crystal structure of the pyrochlore-type γ-Bi₂Sn₂O₇. The octahedrons sharing vertices represent SnO₆ subunits, where Sn atoms are located in the center and O atoms at the vertices.