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金属晶体定体热容的非谐计算
The Anharmonic Calculation for Heat Capacity at Constant Volume of Metallic Crystals
【摘要】 目的 计算室温下金属晶体的定体热容 .方法 采用两类含不同高次项的非谐振子模型 ,根据非简并微扰法计算非谐项对能级的影响 .结果 理论计算值与实验值较为接近 .结论 对不同金属的晶体 ,采用不同的非谐振子模型的方法是可行的
【Abstract】 Aim\ To calculate the heat capacity at constant volume of metal crystal at room temperature. Methods\ With non degeneracy disturbance method, calculating the effect of anharmonic term on the energy level under the framework of anharmonic oscillator contained different higher term. Results\ The result of theoretical calculating matches that of the exist experiment satisfactorily. Conclusion\ This model of anharmonic oscillator is usable.
【关键词】 金属晶体;
定体热容;
非简并微扰;
原子对势;
【Key words】 metallic crystals; heat capacity at constant volume; non-degeneracy disturbance; atomic coupled potential;
【Key words】 metallic crystals; heat capacity at constant volume; non-degeneracy disturbance; atomic coupled potential;
- 【文献出处】 华北工学院学报 ,JOURNAL OF NORTH CHINA INSTITUTE OF TECHNOLOGY , 编辑部邮箱 ,2000年03期
- 【分类号】O73
- 【被引频次】3
- 【下载频次】79