Low-energy electron diffraction study of the multilayer relaxation of Cu(211)

Abstract

The multilayer relaxation of Cu(211) at 110 K was determined by a dynamical low-energy electron diffraction study. This study indicates that the first and second interlayer spacings are contracted by 0.11±0.03 Å (15±4%) and 0.08±0.03 Å (11±4%), respectively, while the third interlayer spacing is expanded by 0.06±0.03 Å (8±4%). These results compare well with the predictions of two theoretical studies of this surface [C. Y. Wei, S. P. Lewis, E. J. Mele, and A. M. Rappe, Phys. Rev. B 57, 10062 (1998); S. Durukanoglu, A. Kara, and T. S. Rahman, Phys. Rev. B 55, 13894 (1997)].