Photo-induced athermal phase transitions of Hg<italic>X</italic> (<italic>X</italic> = S, Se, Te) by <italic>ab initio</italic> study

Photo-induced athermal phase transitions of HgX (X = S, Se, Te) by ab initio study

Ren Da-hua¹, Cheng Xin-lu^{1, 2, †,}, Zhang Hong^{1, 2, 3}

The LO–TO splitting degree (δω) of HgX (X = S, Se, Te) at the Γ point as a function of the electronic temperature T_e.