The reconstruction of the (001) face of tungsten was treated as a Jahn-Teller transition connected with two narrow surface electronic bands along the ΓM lines. The surface periodic lattice distortion was found to be accompanied by the occurrence of the hydrogen ordering in an adlayer with the result that the reconstruction temperature raises.

On the Possible Mechanism of the W(001) Surface Reconstruction with Adsorbed Hydrogen. V.E.Egorushkin, E.V.Savushkin: Solid State Communications, 1990, 76[12], 1363-6