The dispersion and symmetry of the surface states along the ¯Γ -M̅ symmetry line of the W(100) surface Brillouin zone were determined with use of high-resolution angle-resolved photoemission. Comparison with available calculations showed poor agreement, throwing serious doubts on the role played by the surface states in the W(100) reconstruction.

Dispersion of Surface States on W(100) and the Surface Reconstruction. M.I.Holmes, T.Gustafsson: Physical Review Letters, 1981, 47, 443-6