Observation of Dirac Cone Warping and Chirality Effects in Silicene
Observation of Dirac Cone Warping and Chirality Effects in Silicene
We performed low temperature scanning tunneling microscopy (STM) and spectroscopy (STS) studies on the electronic properties of (√3 × √3)R30° phase of silicene on Ag(111) surface. We found the existence of Dirac Fermion chirality through the observation of -1.5 and -1.0 power law decay of quasiparticle interference (QPI) patterns. Moreover, …