Anderson PW
Joseph Henry Laboratories of Physics, Princeton University, Princeton, NJ 08544, USA.
Science. 1998 Feb 20;279(5354):1196-8. doi: 10.1126/science.279.5354.1196.
In the interlayer theory of high-temperature superconductivity, the interlayer pair tunneling energy (similar to the Josephson or Lawrence-Doniach energy) is the motivation for superconductivity. This connection requires two experimentally verifiable identities: the coherent normal-state conductance must be smaller than the "Josephson" coupling energy, and the Josephson coupling energy must be equal to the condensation energy of the superconductor. The first condition is well satisfied in the only case that is relevant, (La, Sr)2CuO4, but the second condition has been questioned. It is satisfied for all dopings in (La,Sr)2CuO4 and also in optimally doped Hg(Ba)2CuO5, which was measured recently, but seems to be strongly violated in measurements on single crystals of Tl2Ba2CuO6.
在高温超导的层间理论中，层间对隧穿能量（类似于约瑟夫森或劳伦斯 - 多尼亚克能量）是超导性的驱动力。这种关联需要两个可通过实验验证的等式：相干正常态电导必须小于“约瑟夫森”耦合能量，且约瑟夫森耦合能量必须等于超导体的凝聚能量。在唯一相关的情况即（镧，锶）₂氧化铜₄中，第一个条件得到了很好的满足，但第二个条件受到了质疑。在（镧，锶）₂氧化铜₄的所有掺杂情况下以及最近测量的最佳掺杂的汞（钡）₂氧化铜₅中，该条件都得到了满足，但在铊₂钡₂氧化铜₆单晶的测量中似乎被严重违反。
