Fig. 3: Magnetic field dependence of the spin and orbital excitations.
From: Complete reversal of the atomic unquenched orbital moment by a single electron
a Differential conductance spectroscopy for different values of the external magnetic field, with the dotted lines denoting threshold voltages V02 and V13 at 1 T. b Color map of dI/dV spectroscopy as a function of magnetic field. c Differential conductance spectroscopy (conductance set-point of −90 mV, 8 nA) showing a transition at ~74 meV, for various magnetic fields, normalized and shifted vertically (with respect to the 5 T spectrum) for clarity. Overlaid are the corresponding transport calculations (gray) derived from the point-charge model, horizontally shifted by −1.4 meV to match the experimentally derived threshold voltage. d The measured threshold voltages V02 and V08 as a function of the external magnetic field. The error bars here only account for the uncertainty in the fit of the step position. Dashed lines are linear fits, indicating a shift of 0.23 ± 0.04 meV/T for the V02 transition and 0.31 ± 0.05 meV/T for the V08 transition.
