Coupling the Higgs mode and ferromagnetic resonance in spin-split superconductors with Rashba spin-orbit coupling

Lu, Yinghua; Ojajärvi, Risto; Virtanen, Pauli; Силаев, М. А.; Heikkilä, Tero T.

doi:10.1103/physrevb.106.024514

Cited by 3 publications

(2 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another interesting avenue to explore is coupling directly to the gap by considering fluctuations from its mean-field value. This has been explored for an FI-SC bilayer, where the Higgs mode of the SC couples linearly to a spin-exchange field [61]. This has a significant impact on the SC spin susceptibility in a bilayer setup.…”

Section: Discussionmentioning

confidence: 99%

Cavity-mediated superconductor–ferromagnetic-insulator coupling

et al. 2023

View full text Add to dashboard Cite

A recent proof of concept showed that cavity photons can mediate superconducting (SC) signatures to a ferromagnetic insulator (FI) over a macroscopic distance [A. T. G. Janssønn et al., Phys. Rev. B 102, 180506(R) (2020)]. In contrast with conventional proximity systems, this facilitates long-distance FI-SC coupling, local subjection to different drives and temperatures, and studies of their mutual interactions without proximal disruption of their orders. Here we derive a microscopic theory for these interactions, with an emphasis on the leading effect on the FI, namely, an induced anisotropy field. In an arbitrary practical example, we find an anisotropy field of 14-16 µT, which is expected to yield an experimentally appreciable tilt of the FI spins for low-coercivity FIs such as Bi-YIG. We discuss the implications and potential applications of such a system in the context of superconducting spintronics.

show abstract

Section: Discussionmentioning

confidence: 99%

Cavity-mediated superconductor–ferromagnetic-insulator coupling

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Moreover, a rich dynamical response of the hybrid systems can be envisaged: the presence of superconductors influence the magnetic resonance by mediating magnetic interactions (as a consequence of the magnetic proximity effect) [20,155] and via the modified spin battery effect. Moreover, they may give access to coupling different collective modes, those inherent to magnetism with those relevant for superconductivity [156].…”

Section: Discussion and Outlookmentioning

confidence: 99%

Superconductor-ferromagnet hybrids for non-reciprocal electronics and detectors

Geng,

Hijano,

Ilić

et al. 2023

Supercond. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

We review the use of hybrid thin films composed of superconductors and ferromagnets for creating non-reciprocal electronic components and self-biased detectors of electromagnetic radiation. We begin by introducing the theory behind these effects, as well as discussing various potential materials that can be used in the fabrication of these components. We then proceed with a detailed discussion on the fabrication and characterization of Al/EuS/Cu and EuS/Al/Co-based detectors, along with their noise analysis. Additionally, we suggest some approaches for multiplexing such self-biased detectors.

show abstract