Fig. 4: Thickness dependence of various spin polarization signals and DFT calculations of the CSC components.
From: Direct observation of distinct bulk and edge nonequilibrium spin accumulation in ultrathin MoTe2
a Bulk and edge, Sb and Sa spin polarization signals normalized to current density vs. MoTe2 thickness. The responsible CSC element for each is indicated in parentheses. b Left panel: the relevant SHE and REE components vs. Fermi energy calculated for pristine 2.8 nm and thick Td-MoTe2. Middle panel: same calculations for a mixed-phase 2.8 nm MoTe2 with layer shift along b-axis. Right panel: same calculations for a 2.8 nm MoTe2 with layer shift along a-axis. Schematics of the structures are shown in the insets above. The unconventional CSC elements are outlined in red in both a and b.
