Electronic Topological Transition as a Route to Improve Thermoelectric Performance in Bi0.5Sb1.5Te3 oleh Feng‐Xian Bai, Hao Yu, Ya‐Kang Peng, Shan Li, Li Yin, Ge Huang, Liu‐Cheng Chen, Alexander F. Goncharov, Jie‐He Sui, Feng Cao, Jun Mao, Qian Zhang, Xiao‐Jia Chen