Fig. 1

(Color online): a Energetic diagram showing the phase stability transition, only the T phase (1T’ or 1T”) with lower energetics are demonstrated in the diagram; Colors are used to distinguish different MX₂ as black for MoS₂, red for MoSe₂, green for WS₂, blue for WSe₂ and purple for MoTe₂; b Atomic configurations of selected MX₂/metal contact