An empirical potential for silicon has been developed. Molecular-dynamics methods and simulated annealing techniques have been used to study the structural properties of small silicon clusters with this potential. A detailed comparison has been made between our results and those obtained from other theoretical methods. It is found that our results are close to those obtained using ab initio techniques. A significant improvement over other empirical potentials has been made.
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acad sinica,shenyang 110015,peoples r china. int ctr mat phys,shenyang 110015,peoples r china.;gong, xg (reprint author), acad sinica,inst solid state phys,hefei 230031,peoples r china
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