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}

Calculated refractive index n(ω), extinction coefficient k(ω), absorption coefficient α(ω), reflectivity R(ω), and electron energy-loss function L(ω) of γ-Bi₂Sn₂O₇, each as a function of photon energy.