We have investigated surface-electronic-dispersion relations of a Mo(001) surface using angle-resolved photoemission spectroscopy. We present surface band structures of the reconstructed Mo(001) surface below the transition temperature (${\mathit{T}}_{\mathit{c}}$). Electronic characteristics including energy dispersion relations, symmetries of the surface states, and resonances are determined and discussed in terms of their significance in reconstruction. The physical implications of the characteristic changes upon crossing ${\mathit{T}}_{\mathit{c}}$ are further discussed in detail.

• Received 9 December 1992

DOI:https://doi.org/10.1103/PhysRevB.47.13594