物理学报2024，Vol.73Issue(15)：19-22,4.DOI:10.7498/aps.73.20240917
时间反演对称性破缺的笼目超导输运现象
Transport phenomena in time-reversal symmetry-breaking Kagome superconductors
摘要
Abstract
Recent studies have found that all three materials within the vanadium-based Kagome superconductors(AV3Sb5,A=K,Cs,Rb)exhibit time-reversal symmetry-breaking behaviors in the superconducting states.Among the three,the Josephson junctions structured Nb/K1-xV3Sb5/Nb and RbV3Sb5 show magnetic hysteresis below the superconducting transition temperature.In CsV3Sb5,there exists a zero-field superconducting diode effect,meaning the magnitude of the positive and negative superconducting critical current are different.We first discuss the similarities and differences among the three above-mentioned experiments.Then,we discuss the possible mechanisms responsible for the unconventional superconducting transport phenomena:such as chiral superconducting order parameter(d+id or p+ip),and chiral pair density waves arising from the coupling of the charge density waves and conventional superconducting states.关键词
笼目超导体/对称性破缺/超导二极管Key words
Kagome superconductor/symmetry-breaking/superconducting diode引用本文复制引用
杨硕颖,殷嘉鑫..时间反演对称性破缺的笼目超导输运现象[J].物理学报,2024,73(15):19-22,4.
