Superconducting diode effect in a meso-wedge geometry with Abrikosov vortices, by Cristhian A. Aguirre, Jose Barba-Ortega, Alberto S. de Arruda, Julian Faundez
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SciPost Physics Core Home Authoring Refereeing Submit a manuscript About Superconducting diode effect in a meso-wedge geometry with Abrikosov vortices Cristhian A. Aguirre, Jose Barba-Ortega, Alberto S. de Arruda, Julian Faundez SciPost Phys. Core 9, 006 (2026) · published 4 February 2026 doi: 10.21468/SciPostPhysCore.9.1.006 pdf BiBTeX RIS Submissions/Reports Abstract In this study, we explore the behavior of a superconducting meso-wedge geometry in 3+1 dimensions (three spatial dimensions plus time) subjected to external transport currents at its boundaries and surfaces, as well as external fields applied along the $\hat{z}$-direction. The transport currents are included as two opposite polarities, $J>0$ and $J0$ and $J<0$, respectively. Using the generalized time-dependent Ginzburg-Landau theory and considering the order parameter $\kappa$, we focus on two scenarios: a fixed external magnetic field with variable $\kappa$, and fixed $\kappa$ with variable external magnetic field. As a result, under both scenarios, we analyze the voltage-current characteristics of the superconducting meso-wedge, finding that the critical currents differ between polarities, demonstrating the system's non-reciprocity. We further examine the efficiency of the diode as a function of $\kappa$ and the external magnetic field applied. Furthermore, our observations reveal that the current polarity strongly influences the vortex configuration, the parameter $\kappa$, and the applied magnetic field. In particular, the formation of Abrikosov-type vortices exhibits pronounced inhomogeneity depending on the direction of the transport currents. This underscores that the diode effect in the superconducting meso-wedge is intimately associated with the anisotropic nucleation of Abrikosov vortices. Notably, the emergence of polarity-dependent vortex patterns can serve as a distinctive hallmark of the diode effect in these superconducting meso-wedge geometries.ER - × @Article{10.21468/SciPostPhysCore.9.1.006, title={{Superconducting diode effect in a meso-wedge geometry with Abrikosov vortices}}, author={Cristhian A. Aguirre and Jose Barba-Ortega and Alberto S. de Arruda and Julian Faundez}, journal={SciPost Phys. Core}, volume={9}, pages={006}, year={2026}, publisher={SciPost}, doi={10.21468/SciPostPhysCore.9.1.006}, url={https://scipost.org/10.21468/SciPostPhysCore.9.1.006},} Ontology / Topics See full Ontology or Topics database. Superconductivity/superconductors Authors / Affiliations: mappings to Contributors and Organizations See all Organizations. 1 2 Cristhian A. Aguirre, 3 Jose Barba-Ortega, 1 Alberto S. de Arruda, 4 Julian Faundez 1 Instituto Federal de Educação, Ciência e Tecnologia de Mato Grosso / Instituto Federal de Educação, Ciência e Tecnologia de Mato Grosso [IFMT] 2 Escuela Superior de Empresa, Ingeniería y Tecnología [ESEIT] 3 Universidad Nacional de Colombia [UNAL] 4 Universidad Andrés Bello / Universidad Andrés Bello [UNAB] Funders for the research work leading to this publication Agencia Nacional de Investigación y Desarrollo [ANID] Comisión Nacional de Investigación Científica y Tecnológica Conselho Nacional de Desenvolvimento Científico e Tecnológico / National Council for Scientific and Technological Development [CNPq]