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本文利用晶体的电子近似本征函数和弗密——狄喇克统计得出屏蔽系数和温度的关系。把不同温度下的晶体能量和屏蔽系数代入能量表达式,计算出金属在不同温度下的晶格参数。对铝、镍和铁进行了计算,计算值接近实验值。通过计算可以看出,金属中的所有价电子,包括传导电子在内,都受到离子实的静电场强烈作用,它们的波函数随着温度变化而变化。
In this paper, the relationship between the shielding coefficient and the temperature is obtained by using the electron’s approximate eigenfunction of the crystal and the Fermi-Dirac statistic. Substituting the crystal energy and the shielding factor at different temperatures into the energy expression, the lattice parameters of the metal at different temperatures are calculated. Aluminum, nickel and iron were calculated, the calculated value close to the experimental value. It can be seen from the calculation that all the valence electrons in the metal, including the conduction electrons, are strongly affected by the electrostatic field of the ions and their wave functions change with the temperature.