Surface reconstructions of Au film on Pd(110) substrate are studied using a local Einstein approximation to quasiharmonic theory with the Sutton-Chen interatomic potential. Temperature dependent surface free energies for different coverages and surface structures are calculated. Experimentally observed transformations from (1×1) to (1×2) and (1×3) structures can be explained in the framework of this model. Also conditions for Stranski-Krastanov growth mode are found to comply with experiments. The domain of validity of the model neglecting mixing entropy is analyzed.
@article{arxiv.cond-mat/9503159,
title = {Temperature dependence of surface reconstructions of Au on Pd(110)},
author = {J. A. Nieminen},
journal= {arXiv preprint arXiv:cond-mat/9503159},
year = {2009}
}
Comments
7 pages, REVTeX two-column format, 3 postscript figures available on request from [email protected] To appear in Phys. Rev. Letters