Giant electromagnetic proximity effect in superconductor/ferromagnet superlattices

Autor:	A. V. Putilov, S. V. Mironov, A. S. Mel'nikov, A. I. Buzdin
Rok vydání:	2022
Předmět:	Superconductivity (cond-mat.supr-con) Condensed Matter - Superconductivity FOS: Physical sciences
Zdroj:	Physical Review B. 105
ISSN:	2469-9969 2469-9950
DOI:	10.1103/physrevb.105.064510
Popis:	We show that in superlattices with alternating superconducting (S) and ferromagnetic (F) layers the spontaneous magnetic field induced in the superconducting layers due to the electromagnetic proximity effect becomes dramatically enhanced compared to the previously studied S/F bilayers. The effect reveals itself for the in-plane orientation of the magnetic moments both for ferromagnetic and anti-ferromagnetic ordering of the moments in the F layers. In the finite size samples the magnetic field decays from the sample surface towards the bulk of the structure, and the decay length strongly depends on the relative orientation of the sample surface, the layers planes and magnetic moments in the F layers. The obtained results provide additional insights into experimental data on the neutron scattering in Nb/Gd superlattices. 6 figures
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3eb876136c342616126f61fed39f8c5 https://doi.org/10.1103/physrevb.105.064510 Zobrazit plný text záznamu