Dynamical vortex transitions in a gate-tunable two-dimensional Josephson junction array

CGL Bøttcher, F Nichele, J Shabani, CJ Palmstrøm… - Physical Review B, 2023 - APS
We explore vortex dynamics in a two-dimensional Josephson junction array of micron-size
superconducting islands fabricated from an epitaxial Al/InAs superconductor-semiconductor …

Proximity-effect-induced superconductivity in thin-film heterostructures with different interface conditions

Y Zhang, J Huang, C Zhang, P Wang, Z Wang, T Wang… - Physical Review B, 2020 - APS
Proximity-effect-induced superconductivity is studied for high-quality Bi 2 Te 3/Fe Se 0.5 Te
0.5 (FST) thin-film heterostructures with atomically sharp interfaces and for Bi 2 Te 3/TiO …

Anti-matching effect in a two dimensional driven vortex lattice in the presence of periodic pinning

MP Akhilesh, T Joseph - Journal of Physics: Condensed Matter, 2024 - iopscience.iop.org
The dynamics of a driven superconducting vortex lattice in a two-dimensional (2D) periodic
potential of square symmetry is studied using Brownian dynamics simulations. The range …

Delocalization of interacting directed polymers on a periodic substrate: Localization length and critical exponents from non-Hermitian spectra

A Melkani, A Patapoff, J Paulose - Physical Review E, 2023 - APS
We study a classical model of thermally fluctuating polymers confined to two dimensions,
experiencing a grooved periodic potential, and subject to pulling forces both along and …

Annealed low energy states in frustrated large square Josephson junction arrays

M Lankhorst, A Brinkman, H Hilgenkamp, N Poccia… - Condensed …, 2018 - mdpi.com
Numerical simulations were done to find low energy states in frustrated large square
Josephson Junction arrays in a perpendicular magnetic field using simulated annealing on …

Tunable vortex dynamics in proximity junction arrays: A possible accurate and sensitive 2D THz detector

J Rezvani, D Di Gioacchino, C Gatti, N Poccia… - arxiv preprint arxiv …, 2019 - arxiv.org
An array of superconducting proximity islands has been shown to be highly tunable by
electric and magnetic fields. Indeed, a small change in the electric and magnetic field can …

Dynamic vortex Mott transition in triangular superconducting arrays

ZX Pei, WG Guo, XG Qiu - Chinese Physics B, 2022 - iopscience.iop.org
The proximity-coupled superconducting island arrays on a metallic film provide an ideal
platform to study the phase transition of vortex states under mutual interactions between the …

Keldysh field theory of a driven dissipative Mott insulator: Nonequilibrium response and phase transitions

S Sankar, V Tripathi - Physical Review B, 2019 - APS
Understanding strongly correlated systems driven out of equilibrium is a challenging task
necessitating the simultaneous treatment of quantum mechanics, dynamical constraints, and …

Critical behavior of dynamic vortex Mott transition in superconducting arrays at fractional vortex densities

E Granato - Physical Review B, 2018 - APS
We study the differential resistivity transition of two-dimensional superconducting arrays
induced by an external driving current, in the presence of thermal fluctuations and a …

Proximity coupling of superconducting nanograins with fractal distributions

T Uchino, N Teramachi, R Matsuzaki, E Tsushima… - Physical Review B, 2020 - APS
We explore the electrical and magnetic properties of a fractal assembly of Josephson
junctions with transparent interfaces. For this purpose, we employ an Mg/MgO/Mg B 2 …