Fig. 4: Tunneling spectroscopy of the P5/Ag interface.
From: Probing charge redistribution at the interface of self-assembled cyclo-P5 pentamers on Ag(111)
a dI/dV point-spectra acquired above the P5 assembly (orange) and on Ag(111) (black), whose locations are shown in the STM inset. (parameters: It = 1 pA, Vs = 500 mV, \({A}_{{{{\rm{mod}}}}}\) = 10 mV, f = 511 Hz). b dI/dV maps at Vs = − 1.25 and 2.5 V, respectively. c STM topographic image of three P5 domains and the corresponding dI/dV maps of the IS modulation. d Scheme of the band alignment and the formation of Stark-shifted IPS (orange lines). e FERT cross-section acquired across the P5 assembly along the dashed line in (a), (Set-points: It = 1 pA, Vs = 500 mV, \({A}_{{{{\rm{mod}}}}}\) = 35 mV, f = 511 Hz). f Single FERT spectra of the P5 assembly and the Ag(111) substrate, showing the series of nth IPS. g Extracted IPS peak voltages as a function of n2/3.
