arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1503.06764cond-mat.stat-mech
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半无限大凝胶:热力学势,化学势,表面能

Semi-infinite jellium: thermodynamic potential, chemical potential, surface energy

P. P. Kostrobij, B. M. Markovych

摘要:

得到了半无限凝胶模型热力学势的一般表达式。利用该表达式计算了无限势垒模型的表面能。研究了表面能和化学势随Wigner-Seitz半径的变化规律以及电子间库仑相互作用对计算值的影响。结果表明,考虑到电子之间的库仑相互作用导致的表面能的增长。表面能在Wigner-Seitz半径的整个区域内都是正的。结果表明,考虑电子之间的库仑相互作用导致化学势的降低。

英文摘要:

General expression for the thermodynamic potential of the model of semi-infinite jellium is obtained. By using this expression, the surface energy for infinite barrier model is calculated. The behavior of the surface energy and of chemical potential as functions of the Wigner-Seitz radius and the influence of the Coulomb interaction between electrons on the calculated values is studied. It is shown that taking into account the Coulomb interaction between electrons leads to growth of the surface energy. The surface energy is positive in the entire area of the Wigner-Seitz radius. It is shown that taking into account the Coulomb interaction between electrons leads to a decrease of the chemical potential.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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