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 supercurrent loops, with the non-trivial 3D remanent magnetic structure of FM nano-rods. This work unravels the importance of addressing quantitatively the effect of stray magnetic fields from both, the superconductor and the ferromagnet in hybrid magnetic nano-devices based on high temperature superconductors.

Details

Title
Competition between Superconductor – Ferromagnetic stray magnetic fields in YBa2Cu3O7−x films pierced with Co nano-rods
Author
Rouco, V 1 ; Córdoba, R 2 ; De Teresa, J M 3 ; Rodríguez, L A 4 ; Navau, C 5 ; Del-Valle, N 5 ; Via, G 6 ; Sánchez, A 5 ; Monton, C 7 ; Kronast, F 8 ; Obradors, X 1 ; Puig, T 1 ; Palau, A 1   VIAFID ORCID Logo 

1  Institut de Ciència de Materials de Barcelona, CSIC, Campus de la UAB, Bellaterra, Spain 
2  Instituto de Ciencia de Materiales de Aragón (ICMA), Universidad de Zaragoza-CSIC, Zaragoza, Spain 
3  Instituto de Ciencia de Materiales de Aragón (ICMA), Universidad de Zaragoza-CSIC, Zaragoza, Spain; Laboratorio de Microscopías Avanzadas (LMA), Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, Zaragoza, Spain 
4  Department of Physics, Universidad del Valle, Cali, Colombia; CEMES-CNRS 29, rue Jeanne Marvig, Toulouse Cedex, France 
5  Department Física, Universitat Autónoma de Barcelona, Bellaterra, Spain 
6  Department Física, Universitat Autónoma de Barcelona, Bellaterra, Spain; Institute of Mathematics and Statistics, University of Sao Paulo, Butantã, Brazil 
7  Institut de Ciència de Materials de Barcelona, CSIC, Campus de la UAB, Bellaterra, Spain; Department of Physics and Astronomy, University of Texas at San Antonio, San Antonio, USA 
8  Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, Berlin, Germany 
Pages
1-9
Publication year
2017
Publication date
Jul 2017
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1038/s41598-017-05909-6
ProQuest document ID
1956132811
Copyright
© 2017. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.