H-INDUCED (1X2) RECONSTRUCTION OF THE CU(110) SURFACE - STRUCTURE AND DECONSTRUCTION KINETICS

180-degrees-neutral impact collision ion scattering spectroscopy (NICISS) measurements demonstrate that the H-induced (1 X 2) reconstruction of Cu(110) is of the missing row type. Every other close packed <110> row of the first layer is absent. The reconstruction has been observed in the entire exposure range of (300-6000) X 10(-6) mbar s. No evidence has been found for a reconstruction involving only displacements of atoms in deeper layers. The lifting of the reconstruction in the temperature range of 290 to 315 K can be described by a first-order process with an activation energy of E(a) = 0.88 eV.