Heatmap from Scientific Research

Calculated global OAM monopole texture around the double spin-1 multifold band degeneracy at the R point (left) in the corner of the Brillouin zone. The arrows on the sphere indicate the OAM direction on the constant energy contour at 30 meV above the crossing. Parallel OAM momentum locking projected onto the light direction (L light), along the X-R-X direction (middle, with binding energy E shifted by Fermi energy E F ) and on the iso-energy surface in the X-R-M plane ~0.15 eV above the node (right, with momentum axis k [110] along the [110] direction and k [-110] along the [-110] direction).

DOI