首页> 外文期刊>Zeitschrift fur Physik, B. Condensed Matter >Do electrons change their c-axis kinetic energy upon entering the superconducting state?
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Do electrons change their c-axis kinetic energy upon entering the superconducting state?

机译:电子进入超导状态后会改变其c轴动能吗?

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The interlayer tunneling mechanism of the cuprate high temperature superconductors involves a conversion of the confinement kinetic energy of the electrons perpendicular to the CuO-planes (c-axis) in the normal state to the pair binding energy in the superconducting state. This mechanism is discussed and the arguments are presented from the point of view of general principles. It is shown that recent measurements of the c-axis properties support the idea that the electrons substantially lower their c-axis kinetic energy upon entering the superconducting state, a change that is nearly impossible in any conventional mechanism. The proper use of a c-axis conductivity sum rule is shown to resolve puzzles involving the penetration depth and the optical measurements.
机译:铜酸盐高温超导体的层间隧穿机理涉及将垂直于正常状态下的CuO平面(c轴)的电子的限制动能转换成超导状态下的成对结合能。从一般原理的角度讨论了这种机制并提出了论点。结果表明,最近对c轴特性的测量结果支持了这样的想法,即电子在进入超导状态时会大大降低其c轴动能,这种变化在任何常规机制中几乎都是不可能的。显示了正确使用c轴电导率和规则可以解决涉及穿透深度和光学测量的难题。

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