新型磁性化学计量超导体 EuRbFe4As4
超导电性
2023-02-20 v1 强关联电子
摘要
在新型化学计量铁基材料 RbEuFe4As4 中，超导电性与 Eu 4f 态的特殊长程磁序共存；其共存令人困惑，并对实验与理论均构成挑战。利用角分辨光电子能谱、共振光电子能谱、Andreev 反射谱和扫描隧道谱，我们解决了这一谜题，并明确表明 Fe 衍生态与 Eu 衍生态在很大程度上解耦，且超导序与长程磁序几乎彼此独立地存在。
引用
@article{arxiv.2108.13928,
title = {Novel magnetic stoichiometric superconductor EuRbFe4As4},
author = {T. K. Kim and K. S. Pervakov and V. A. Vlasenko and A. V. Sadakov and A. S. Usoltsev and D. V. Evtushinsky and S. W. Jung and G. Poelchen and K. Kummer and D. Roditchev and V. S. Stolyarov and I. A. Golovchanskiy and D. V. Vyalikh and V. Borisov and R. Valenti and A. Ernst and S. V. Eremeev and E. V. Chulkov and V. M. Pudalov},
journal= {arXiv preprint arXiv:2108.13928},
year = {2023}
}
备注
7 pages, 8 figures, To appear in: Phys.Usp