Theoretical analysis of STM-derived lifetimes of excitations in the Shockley surface-state band of Ag(111)
Theoretical analysis of STM-derived lifetimes of excitations in the Shockley surface-state band of Ag(111)
We present a quantitative many-body analysis using the $GW$ approximation of the decay rate $\ensuremath{\Gamma}$ due to electron-electron scattering of excitations in the Shockley surface state band of Ag(111), as measured using the scanning tunneling microscope (STM). The calculations include the perturbing influence of the STM, which causes a Stark-shift …