Unequivocal Determination of Spin-Triplet Superconductivity Using Composite Rings
Superconductivity
2022-10-18 v1
Abstract
Phase-sensitive measurements on a composite ring made of a superconductor of interest connected by a known singlet -wave superconductor can unambiguously determine its pairing symmetry. In composite rings with epitaxial BiPd and -wave Nb, we have observed half-integer quantum flux when Nb is connected to the opposite crystalline ends of BiPd and integer-quantum flux when Nb is connected to the same crystalline ends of BiPd. These findings provide unequivocal evidence of odd-parity pairing state of the triplet superconductor BiPd.
Keywords
Cite
@article{arxiv.2210.08733,
title = {Unequivocal Determination of Spin-Triplet Superconductivity Using Composite Rings},
author = {Xiaoying Xu and Yufan Li and C. L. Chien},
journal= {arXiv preprint arXiv:2210.08733},
year = {2022}
}