The strictly attractive 1/l2 interaction between steps of crystal surfaces

• Main Authors: Guozhong, Wang, Webb, J. F., Jian, Zi
• Format: Article
• Published: Elsevier B.V. 2007
• Subjects: QC Physics; T Technology (General)
• Online Access: http://eprints.utm.my/id/eprint/17869/; http://dx.doi.org/10.1016/j.susc.2007.02.015
• Institution: Universiti Teknologi Malaysia

Using SSH model for the step structure of crystal surfaces, a strictly attractive 1/l2 energy, which originates from the quantum effect of surface atoms’ collective relaxation, was obtained for the first time and shown to generally exist between steps. The repulsive 1/l step interaction was confirme...