Figure 1: Temperature-induced phase transition in MoTe2.

(a) Crystal structures of 1T′ (shadow) and Td (solid) phases. (b) Resistivity measurement shows a temperature-induced phase transition. The inset shows a photograph of the high-quality single crystal; scale bar, 5 mm. (c) Raman spectra at 320 and 80 K. The letters inside the parenthesis indicate the polarization directions for incident and scattering lights.