Spin-orbit coupling in the band structure WSe$_{2}$ monolayers

2015 
spin-orbit coupling in excess of 500 meV, far larger than for MoS2. The experimental band mapping is consistent with theoretical expectations with the top of the valence band is seen at K, not , thus distinct from the band structure for the bilayer and bulk single crystals. This shift of the top of the valence band in monolayer WSe2, from to K, is also predicted in density functional theory. In general the wave vector dependent experimental band structure conrms the expectations of density functional theory.
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