RT Journal Article
T1 Long-range superconducting proximity effect in YBa2Cu3O7/La0.7Ca0.3MnO3 weak-link arrays
A1 Sánchez Manzano, David
A1 Mesoraca, S.
A1 Rodríguez Corvillo, Sara
A1 Lagarrigue, A.
A1 Gallego Toledo, Fernando
A1 Cuéllar Jiménez, Fabian Andrés
A1 Sander, A.
A1 Rivera Calzada, Alberto Carlos
A1 Valencia, S.
A1 Villegas, J.E.
A1 León Yebra, Carlos
AB The interplay between ferromagnetism and superconductivity has attracted substantial interest due to its potential for exotic quantum phenomena and advanced electronic devices. Although ferromagnetism and superconductivity are antagonistic phenomena, ferromagnets (F) can host spin-triplet superconductivity induced via proximity with superconductors (S). To date, most of the experimental effort has been focused on single S/F/S junctions. Here, we have found the fingerprints of long-range superconducting proximity effect in micrometric weaklink arrays, formed by embedding YBa2Cu3O7 superconducting islands in a half-metallic ferromagnet La0.7Ca0.3MnO3 film. These arrays show magnetoresistance oscillations that appear at temperatures below the critical temperature of YBa2Cu3O7 for currents below a threshold, indicating their superconducting origin. This realization paves the way for device architectures displaying macroscopic quantum interference effects, which are of interest for field sensing applications, among others.
PB American Institute of Physics
SN 0003-6951
YR 2024
FD 2024-05-30
LK https://hdl.handle.net/20.500.14352/105740
UL https://hdl.handle.net/20.500.14352/105740
LA eng
NO D. Sanchez-Manzano, S. Mesoraca, S. Rodriguez-Corvillo, A. Lagarrigue, F. Gallego, F. A. Cuellar, A. Sander, A. Rivera-Calzada, S. Valencia, J. E. Villegas, C. Leon, J. Santamaria; Long-range superconducting proximity effect in YBa2Cu3O7/La0.7Ca0.3MnO3 weak-link arrays. Appl. Phys. Lett. 27 May 2024; 124 (22): 222603. https://doi.org/10.1063/5.0189305
NO Agencia Estatal de Investigación (España)
NO Ministerio de Ciencia e Innovación (España)
NO Comunidad de Madrid
NO Helmholtz Zentrum Berlin
NO European Commission
NO Agence Nationale de la Recherche (France)
DS Docta Complutense
RD 7 abr 2025