Figure 2: Laser-SARPES spectra of spin-polarized surface states on Bi(111).
From: Spin-dependent quantum interference in photoemission process from spin-orbit coupled states
(a–h) The y component of spin-resolved photoelectron spectra and spin polarizations at the wave vectors of k1−k4 shown in Fig. 1b measured with (a–d) s- and (e–h) p-polarizations are displayed. The y direction is perpendicular to the 
mirror plane. The spins pointing toward [
1 0] and [1 
0] directions are plotted by magenta and blue triangles, respectively. Turquoise plots represent the y component of the spin polarization. The error bars represent the s.d. of the measurements. (i) Schematic drawing of the spin–orbital texture on the 
mirror axis. The px and pz states can be 
, and py 
.
