Proximity coupling in superconductor-graphene heterostructures

GH Lee, HJ Lee - Reports on Progress in Physics, 2018 - iopscience.iop.org
This review discusses the electronic properties and the prospective research directions of
superconductor-graphene heterostructures. The basic electronic properties of graphene are …

Graphene-based Josephson junction microwave bolometer

GH Lee, DK Efetov, W Jung, L Ranzani, ED Walsh… - Nature, 2020 - nature.com
Sensitive microwave detectors are essential in radioastronomy, dark-matter axion searches
and superconducting quantum information science,. The conventional strategy to obtain …

Ballistic Josephson junctions in edge-contacted graphene

VE Calado, S Goswami, G Nanda, M Diez… - Nature …, 2015 - nature.com
Hybrid graphene–superconductor devices have attracted much attention since the early
days of graphene research,,,,,,,,,,,,,,,,,. So far, these studies have been limited to the case of …

Josephson junction infrared single-photon detector

ED Walsh, W Jung, GH Lee, DK Efetov, BI Wu… - Science, 2021 - science.org
Josephson junctions are superconducting devices used as high-sensitivity magnetometers
and voltage amplifiers as well as the basis of high-performance cryogenic computers and …

Nonlinear relaxation phenomena in metastable condensed matter systems

B Spagnolo, C Guarcello, L Magazzù, A Carollo… - Entropy, 2016 - mdpi.com
Nonlinear relaxation phenomena in three different systems of condensed matter are
investigated.(i) First, the phase dynamics in Josephson junctions is analyzed. Specifically, a …

Noise-induced effects in nonlinear relaxation of condensed matter systems

B Spagnolo, D Valenti, C Guarcello, A Carollo… - Chaos, Solitons & …, 2015 - Elsevier
Noise-induced phenomena characterise the nonlinear relaxation of nonequilibrium physical
systems towards equilibrium states. Often, this relaxation process proceeds through …

Graphene-based Josephson-junction single-photon detector

ED Walsh, DK Efetov, GH Lee, M Heuck, J Crossno… - Physical Review …, 2017 - APS
We propose to use graphene-based Josephson junctions (GJJs) to detect single photons in
a wide electromagnetic spectrum from visible to radio frequencies. Our approach takes …

Phase dynamics in graphene-based Josephson junctions in the presence of thermal and correlated fluctuations

C Guarcello, D Valenti, B Spagnolo - Physical Review B, 2015 - APS
We study by numerical methods the phase dynamics in ballistic graphene-based short
Josephson junctions. A superconductor-graphene-superconductor system exhibits …

Gate-tunable critical current of the three-dimensional niobium nanobridge Josephson junction

S Yu, L Chen, Y Pan, Y Wang, D Zhang, G Wu… - Nano Letters, 2023 - ACS Publications
Recent studies have shown that the critical currents of several metallic superconducting
nanowires and Dayem bridges can be locally tuned by using a gate voltage (V g). Here, we …

Ultimately short ballistic vertical graphene Josephson junctions

GH Lee, S Kim, SH Jhi, HJ Lee - Nature communications, 2015 - nature.com
Much efforts have been made for the realization of hybrid Josephson junctions incorporating
various materials for the fundamental studies of exotic physical phenomena as well as the …