Basov DN, Woods SI, Katz AS, Singley EJ, Dynes RC, Xu M, Hinks DG, Homes CC, Strongin M
D. N. Basov, S. I. Woods, A. S. Katz, E. J. Singley, R. C. Dynes, Department of Physics, University of California-San Diego, La Jolla, CA 92093-0319, USA. M. Xu, James Franck Institute, University of Chicago, Chicago, IL 60637, USA. D. G. Hinks,
Science. 1999 Jan 1;283(5398):49-52. doi: 10.1126/science.283.5398.49.
Analysis of the interlayer infrared conductivity of cuprate high-transition temperature superconductors reveals an anomalously large energy scale extending up to midinfrared frequencies that can be attributed to formation of the superconducting condensate. This unusual effect is observed in a va- riety of materials, including Tl2Ba2CuO6+x, La2-xSrxCuO4, and YBa2Cu3O6.6, which show an incoherent interlayer response in the normal state. Midinfrared range condensation was examined in the context of sum rules that can be formulated for the complex conductivity. One possible interpretation of these experiments is in terms of a kinetic energy change associated with the superconducting transition.
对铜酸盐高温超导体层间红外电导率的分析表明，存在一个异常大的能量尺度，一直延伸到中红外频率，这可归因于超导凝聚体的形成。在包括Tl2Ba2CuO6+x、La2-xSrxCuO4和YBa2Cu3O6.6等多种材料中都观察到了这种异常效应，这些材料在正常状态下表现出非相干层间响应。在可针对复电导率制定的求和规则的背景下，对中红外范围的凝聚进行了研究。这些实验的一种可能解释是与超导转变相关的动能变化。
