Figure 2
From: Giant Rashba effect at the topological surface of PrGe revealing antiferromagnetic spintronics
Comparison of the experimental VB with the theoretical DOS calculations: (a) RPES data across the Pr 4d–4f resonance are shown in a contour plot. The inset shows the CIS spectrum for feature A, where the open circle is the experimental data and solid line is the fitted Fano profile. (b) The on-resonance spectrum at hν = 125 eV and off-resonance spectrum at hν = 116 eV along with the difference spectrum. The yellow and red shaded regions in the difference spectrum corresponds to the Pr 4f states and the other valence states respectively. (c) Pr 3d core level with the observed features f 2, f 3 and m marked in the spectrum. In (d–g) we have shown the PDOS of Pr 4f, Pr 5d, Ge 4s and Ge 4p states calculated using GGA method for bulk (black filled circle) and surface slab with Pr terminated surface (blue open triangle). The crystal structure of the surface slab with the anti-parallel orientation of spins of Pr atoms is shown. (h) experimental partial density of Pr 4f state (as in (b), shown by green filled square) compared with the partial density of Pr 4f states from bulk (black filled circle) and the surface slab (blue open triangle) calculations.
