Competition between Superconductor - Ferromagnetic stray magnetic fields in YBa₂Cu₃O_7-x films pierced with Co nano-rods.

ABSTRACT: Superconductivity and ferromagnetism are two antagonistic phenomena that combined can lead to a rich phenomenology of interactions, resulting in novel physical properties and unique functionalities. Here we propose an original hybrid system formed by a high-temperature superconducting film, patterned with antidots, and with ferromagnetic nano-rods grown inside them. This particular structure exhibits the synergic influence of superconductor (SC) - ferromagnetic (FM) stray fields, in both the superconducting behaviour of the film and the three-dimensional (3D) magnetic structure of nano-rods. We show that FM stray fields directly influence the critical current density of the superconducting film. Additional functionalities appear due to the interaction of SC stray fields, associated to supe

SUBMITTER: Rouco V 

PROVIDER: S-EPMC5516025 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature