TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysCore.9.1.006
TI  - Superconducting diode effect in a meso-wedge geometry with Abrikosov vortices
PY  - 2026/02/04
UR  - https://scipost.org/SciPostPhysCore.9.1.006
JF  - SciPost Physics Core
JA  - SciPost Phys. Core
VL  - 9
IS  - 1
SP  - 006
A1  - Aguirre, Cristhian A.
AU  - Barba-Ortega, Jose
AU  - de Arruda, Alberto S.
AU  - Faundez, Julian
AB  - 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 $J<0$, 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},
}