Author:
Bartenev Alexander,Kolodka Roman S.,Verbel Camilo,Rua Adrian,Theran Larry,Fernandez Felix,Rua Armando,Lysenko Sergiy
Abstract
Time-resolved ultrafast reflectivity measurements along with the two-temperature model analysis reveal a complex interplay between optical nonlinearities, structural phase transition, electronic correlations, electron-phonon energy transfer, and the second moment of Eliashberg function in FeSe0.8Te0.2.