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A study of the mechanical and structural properties of polonium

机译:lon的力学和结构性能研究

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We have performed an ab initio study of the structure of polonium. By calculating total energies in a number of tetragonal lattice configurations, we have shown that the simple cubic structure is preferred by the system. The other two zero-stress structures, bee and fee, correspond to inflection points along this path. These calculations agree with experimental evidence that polonium is the only known element to assume the simple cubic structure at room temperature. We have found an LIDA lattice constant of 3.28 Angstrom, and we have obtained two of the elastic constants: C-11 = 113 GPa and C-12 = 28 GPa. (C) 2003 Published by Elsevier Ltd. [References: 11]
机译:我们已经从头开始研究了the的结构。通过计算许多四边形晶格构型的总能量,我们显示出系统更喜欢简单的立方结构。蜜蜂和费的其他两个零应力结构对应于沿该路径的拐点。这些计算与实验证据一致,即that是室温下唯一具有简单立方结构的已知元素。我们发现LIDA晶格常数为3.28埃,并且获得了两个弹性常数:C-11 = 113 GPa和C-12 = 28 GPa。 (C)2003年由Elsevier Ltd.出版。[参考文献:11]

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