Chiral Majorana edge state in a quantum anomalous Hall   insulator-superconductor structure
  After the recognition of the possibility to implement Majorana fermions using the building blocks of solid-state matters, the detection of this peculiar particle has been an intense focus of research. Here we experimentally demonstrate a collection of Majorana fermions living in a one-dimensional transport channel at the boundary of a superconducting quantum anomalous Hall insulator thin film. A series of topological phase changes are controlled by the reversal of the magnetization, where a half-integer quantized conductance plateau (0.5e2/h) is observed as a clear signature of the Majorana phase. This transport signature can be well repeated during many magnetic reversal sweeps, and can be tracked at different temperatures, providing a promising evidence of the chiral Majorana edge modes in the system. 
Qing Lin He, Lei Pan, Alexander L. Stern, Edward Burks, Xiaoyu Che,   Gen Yin, Jing Wang, Biao Lian, Quan Zhou, Eun Sang Cho...
cond-mat.supr-con cond-mat.mes-hall cond-mat.mtrl-sci cond-mat.str-el