Observation of a topologically non-trivial surface state in half-Heusler PtLuSb (001) thin films

Abstract

Half-Heusler compounds are predicted to bear topological properties, which is yet to be experimentally evidenced. Here, Logan et al.report experimental evidence of a topological surface state in epitaxially grown thin films of the half-Heusler compound PtLuSb, providing a candidate for new spintronic devices.