EPJ Web of Conferences (Mar 2013)
Time-domain evidence for an excitonic insulator
Abstract
Time- and angle-resolved photoemission spectroscopy with a high–harmonic- generation source is used to classify the potential excitonic insulator 1T-TiSe2 and the reference Peierls-Mott insulator 1T-TaS2 on the basis of the melting times of “spectroscopic order parameters”.