Working principle of the parallel spin analyzer. The instrument works either as a conventional ToF Momentum Microscope in the straight branch or the spin filter crystal deflects the image for spin analysis in the perpendicular branch (spin-filtered branch).

[H.J. Elmers et al., Phys. Rev. Research 2, 013296 (2020)]

Constant-energy maps of Re (0001) measured with photon energies of 18.5 eV. Left to right binding energies 0mV, 200 meV and 400 meV. The lower row displays the spin filtered measurements.

[H.J. Elmers et al., Phys. Rev. Research 2, 013296 (2020)]

An image with a FoV 450µm of a chessy sample with >9.000 pixels in the complete image. This demonstrates the image quality of the spin-filtered branch.