https://www.t.u-tokyo.ac.jp/en/press/foee/press/setnws_20160722110353913176369960.html
Zero-bias photocurrent in ferromagnetic topological insulator
Zero-bias photocurrent in ferromagnetic topological insulator : Professor Masashi Kawasaki, Professor Yoshinori Tokura, Department of Applied Physics, and
topological insulatorzerobiasphotocurrentferromagnetic