从理论上探讨了高Tc超导体的动态热膨胀反常行为对正常态和超导态分别用两组参数拟合实验数据,结果基本吻合与正常态相比,超导态的非谐性增强,原子间相互排斥的不对称性和声子的软化现象均增强,尤其是声子的软化更为显著此结果有助于理解高Tc超导电性机理
The dynamic process of thermal expansion of Bi-based high-Tc superconductors is studied theoretically. For normal and superconducting states, two groups of parameters are obtained to fit the experimental data, the agreement is good. Compared with the norm
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