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YBa2Cu3O7-δ超导体声子谱的动态研究
DYNAMIC STUDY ON PHONON SPECTRA OF YBa2Cu3O7-δ SUPERCONDUCTOR
【摘要】 测定了YBa2Cu3O7-δ超导体在室温至10K的中红外透射光谱,发现超导相YBa2Cu3O7-δ相与其它相的中红外透射光谱存在巨大差异,且与超导性能密切相关.从声子选择定则的群论出发,讨论了强电子-声子耦合对高T0超导电性的作用
【Abstract】 Mid-IR transmittance spectra of YBa2Cu3O7-δ superconductors are measured in the temperature range of R. T. to 10K. The significant difference in spectra between the superconducting phase YBa2Cu3O7-δ and other phases is found and considered to be intimately related to the superconducting behaviors. The effect of the strong electron-phonon coupling on the high-Tc superconductivity process is discussed in terms of the group theory for phonon selection rules.
- 【文献出处】 红外研究 , 编辑部邮箱 ,1989年02期
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