Short-range phase coherence and origin of the1T−TiSe2charge density wave

• DOI: 10.1103/physrevb.93.125140
• Publication Date: 2016-03-28T18:08:50Z
• Authors: B. Hildebrand; T. Jaouen; C. Didiot; E. Razzoli; G. Monney; M.-L. Mottas; A. Ubaldini; H. Berger; C. Barreteau; H. Beck; D. R. Bowler; P. Aebi
• Keywords: Charge Density Wave

The impact of variable Ti self-doping on the 1T-TiSe2 charge density wave (CDW) is studied by scanning tunneling microscopy. Supported functional theory we show that agglomeration intercalated-Ti atoms acts as preferential nucleation centers for CDW breaks up in phaseshifted domains whose size directly depends concentration and which are separated atomically-sharp phase boundaries. close relationship between diminution domain disappearance anomalous peak temperature dependent resistivity allows to draw a coherent picture transition its relation excitons.