Electronic properties of new topological quantum materials

Topological materials are characterized by the presence of nontrivial quantum electronic states, where often the electron spin is locked to its momentum. This opens up the possibility for developing new devices in which information is processed or stored by means of spin rather than charge.

In this talk we will present data from Angle Resolved Photoemission that details fascinating electronic properties of several newly discovered topological materials and link these results to some old outstanding problems in more traditional condensed matter physics. Perhaps the most interesting amongst them is discovery of spin textured Fermi arcs that appear in AFM state of some rare-earth monopnictides and undergo novel splitting that is different from previously reported Rashba and Zeeman splitting.