Superluminal Propagation of Composite Collective Modes in Superconductor-Ferromagnet Heterostructures

P Derendorf, AF Volkov, IM Eremin - arXiv preprint arXiv:2407.05457, 2024 - arxiv.org
Superconductor/ferromagnet/superconductor Josephson junctions are paradigmatic
systems for studying the delicate interplay of superconductivity and magnetism via proximity …