EQUILIBRIUM MORPHOLOGY OF THE AG(110) SURFACE

This paper reports on He-atom scattering measurements performed in ord er to shed light on the equilibrium morphology of the bare Ag(110) sur face. Measurements of the specular peak profile along [1 (1) over bar 0] and slightly off the out-of-phase scattering condition show that th e proposed ''hill and valley'' configuration is originated by thermall y induced segregation of bulk impurities. Proper cleaning procedure is described to obtain the unfaceted surface which is proven to be the e quilibrium morphology of Ag(110).