Accurate valence band dispersions Ek were determined along three main symmetry lines ΓM, ΓX and XM using one single crystal (001) surface, using a simple photo-emission technique. Using direct interband transitions, Ek dispersions were mapped out by suitably scanning polar emission angle and the photon energy. The detailed results agreed well with recent Xα-APW energy band calculations.

Experimental Band Dispersions Ek along Three Main Symmetry Lines of LaB6 using Angle-Resolved Photoemission from One Crystal Surface. Aono, M., Chiang, T.C., Knapp, J.A., Tanaka, T., Eastman, D.E.: Solid State Communications, 1979, 32[4], 271-4