TY - RPRT TI - Surface and thermodynamic interatomic force fields for silicon clusters and bulk phases. AU - JR Chelikowsky AU - JC Phillips AU - M Kamal AU - M Strauss PY - 1989 DO - 10.1103/physrevlett.62.292 UR - https://pubmed.ncbi.nlm.nih.gov/10040195/ ID - 10040195 ER -