This title appears in the Scientific Report : 2018 

Spin-Resolved Electronic Response to the Phase Transition in MoTe 2
Weber, Andrew P. (Corresponding author)
Rüßmann, Philipp / Xu, Nan / Muff, Stefan / Fanciulli, Mauro / Magrez, Arnaud / Bugnon, Philippe / Berger, Helmuth / Plumb, Nicholas C. / Shi, Ming / Blügel, Stefan / Mavropoulos, Phivos / Dil, J. Hugo
Quanten-Theorie der Materialien; IAS-1
Quanten-Theorie der Materialien; PGI-1
Physical review letters, 121 (2018) 15, S. 156401
College Park, Md. APS 2018
Journal Article
Scattering of topologically protected states off defects in topological insulators
Controlling Configuration-Based Phenomena
Controlling Spin-Based Phenomena
Please use the identifier: in citations.
Please use the identifier: in citations.
The semimetal MoTe2 is studied by spin- and angle-resolved photoemission spectroscopy across the centrosymmetry-breaking structural transition temperature of the bulk. A three-dimensional spin-texture is observed in the bulk Fermi surface in the low temperature, noncentrosymmetric phase that is consistent with first-principles calculations. The spin texture and two types of surface Fermi arc are not completely suppressed above the bulk transition temperature. The lifetimes of quasiparticles forming the Fermi arcs depend on thermal history and lengthen considerably upon cooling toward the bulk structural transition. The results indicate that a new form of polar instability exists near the surface when the bulk is largely in a centrosymmetric phase.