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A Three-Center Tight-Binding Potential Model for C and Si
作者:Wen-Cai Lu, C. Z. Wang, Li-Zhen Zhao, Wei Qin, K. M. Ho
關鍵字:Tight-Binding Potential,Three-Center
論文來源:期刊
具體來源:Phys. Rev. B
發表時間:2015年

        A tight-binding potential model which goes beyond the Slater-Koster two-center approximation and includes explicit three-center and crystal field expressions is presented. Using carbon and silicon as examples, we show that various bulk structures, surface reconstructions, and the structures of clusters and liquids of C and Si can be well described by the present three-center tight-binding model. These results demonstrate that three-center interaction and crystal field effect are very important for improving the transferability of tight-binding models in describing the structures and properties of materials over a wide range of bonding configurations.  

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