Singular current response from isolated impurities in d-wave superconductors.
Singular current response from isolated impurities in d-wave superconductors.
复制标题
d 波超导体中孤立杂质的奇异电流响应。
DOI：
--
复制
发表时间：
2002
影响因子：
8.6
通讯作者：
P. Hirschfeld
中科院分区：
文献类型：
--
作者：
S. Tsai;P. Hirschfeld
计算了含有单一杂质的d波超导体的电流响应，结果表明，在低温极限下，电流响应是奇异的，在强散射的情况下，穿透深度λ（T）中有1/T项，类似于Andreev表面束缚态引起的穿透深度λ（T）。对于少数这样的杂质，我们认为这种低T的上升可以在铜酸盐超导体中观察到。
The current response of a d-wave superconductor containing a single impurity is calculated and shown to be singular in the low-temperature limit, leading in the case of strong scattering to a 1/T term in the penetration depth lambda(T) similar to that induced by Andreev surface bound states. For a small number of such impurities, we argue this low-T upturn could be observable in cuprate superconductors.