Study of Chemisorption Induced Reconstruction by Scanning Tunneling Microscopy
02 November 1987
The reconstruction of the Ni(110) induced by hydrogen chemisorption was studied by STM and LEED. Hydrogen molecules are dissociatively adsorbed on the surface, resulting in (5x2) reconstruction at room temperature. Four Ni atoms are paired along the and forms a unique tetramer. The change of electronic structure by hydrogen sub 2 adsorption will be discussed. The result will be compared with adsorption of metallic overlayers on the Ni(110).