Dynamical reentrance and geometry imposed quantization effects in Nb-AlOx-Nb Josephson junction arrays
Fernando M. Araujo-Moreira, Sergei Sergeenkov
TL;DR
This study investigates the magnetic properties and flux behavior of ordered 2D Josephson junction arrays, revealing phenomena like dynamical reentrance and geometry-induced quantization effects through experimental and theoretical analysis.
Contribution
It provides a comprehensive experimental and theoretical analysis of magnetic phenomena in 2D Josephson junction arrays, including imaging local flux distributions.
Findings
Observation of dynamical reentrance phenomena
Identification of geometry-imposed quantization effects
Detailed temperature and magnetic field dependence of AC susceptibility
Abstract
In this paper, we report on different phenomena related to the magnetic properties of artificially prepared highly ordered (periodic) two-dimensional Josephson junction arrays (2D-JJA) of both shunted and unshunted Nb-AlOx-Nb tunnel junctions. By employing mutual-inductance measurements and using a high-sensitive bridge, we have thoroughly investigated (both experimentally and theoretically) the temperature and magnetic field dependence of complex AC susceptibility of 2D-JJA. We also demonstrate the use of the scanning SQUID microscope for imaging the local flux distribution within our unshunted arrays.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.