Hartree-Fock energy surface search

Information on even specialized scientific topics can often be obtained from ordinary search engines. For example, a popular search engine gave information (ten hits for each) on these five topics, using the keywords shown Hartree Fock, potential energy surface, molecular mechanics, Huckel, Extended Huckel. In several cases the hypertext leads one to tutorials, and to free programs. 

Metal clusters have attracted tremendous attentions due to their interesting electronic properties and potential applications. Many empirical and semiempirical potentials or models have been used for metal clusters and the related works have been reviewed. Compared to the empirical or semiempirical simulations, ab initio calculations based on density functional theory (DFT) or Hartree-Fock (HF) theoiy are more accurate for describing the potential energy surface. In recent years, direct combination of DFT calculations and GA have become computationally affordable, allowing a more reliable search of any elemental clusters without requiring any empirical potential parameters. 

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