Frustration in d-wave Superconducting Circuits: $\pi$-Ring Behaviour
超导电性
2007-05-23 v1
摘要
A closed superconducting circuit containing an odd number of -junctions, a -ring, has a finite current in the ground state. We explicitly construct such rings for d-wave superconductors and demonstrate the existence of spontaneous currents by direct self-consistent solutions to the Bogoliubov de Gennes equations. We show that the current has a topological origin due to the frustration of the d-wave order parameter, which is only partially explained by the Sigrist-Rice tunneling formula.
引用
@article{arxiv.cond-mat/0006033,
title = {Frustration in d-wave Superconducting Circuits: $\pi$-Ring Behaviour},
author = {J. J. Hogan-O'Neill and J. F. Annett and A. M. Martin},
journal= {arXiv preprint arXiv:cond-mat/0006033},
year = {2007}
}
备注
Submitted for Physical Review Letters. 5 figures, 4 pages, 2 column format