Fig. 4
From: Orbital-selective spin excitation of a magnetic porphyrin
Frontier orbitals spatial distribution. a dI/dV spectra of FeTPP measured on the two bright pyrrole groups (blue) and on the central Fe atom (red) (setpoint: V = 0.4 V, I = 300 pA. Lock-in frequency 938 Hz, modulation 2 mV rms). The spectra are measured in a wider range as in Fig. 2a to capture the shape and position of frontier orbitals. b Stacking plot of point dI/dV spectra (40 curves, 2.5 nm) along the FeTPP molecule showing the spatial localization of dI/dV signal along the axis determined by the two bright pyrroles. c Constant height conductance maps at the energy of the resonances observed in a
