Figure 4: Evolution of the surface states' spin polarization with composition.
From: Unconventional transformation of spin Dirac phase across a topological quantum phase transition
(a,e) ARPES k||-EB maps with dotted lines indicating the energy levels of SR measurements. Compositions of the samples are marked on the top of each map. (b,f) Momentum distribution curves with highlighted curves chosen for SR measurements. (c,g) SR momentum distribution spectra and (d,h) the corresponding net spin polarization measurements.
