Wang Hang-Tian, Zhao Hai-Hui, Wen Liang-Gong, Wu Xiao-Jun, Nie Tian-Xiao, Zhao Wei-Sheng. High-performance THz emission: From topological insulator to topological spintronicsJ. Acta Physica Sinica, 2020, 69(20): 200704. DOI: 10.7498/aps.69.20200680