Benchmarking noise and dephasing in emerging electrical materials for quantum technologies
As quantum technologies develop, a specific class of electrically conducting materials is
rapidly gaining interest because they not only form the core quantum‐enabled elements in …
rapidly gaining interest because they not only form the core quantum‐enabled elements in …
Correlated insulating states and transport signature of superconductivity in twisted trilayer graphene superlattices
Layers of two-dimensional materials stacked with a small twist angle give rise to beating
periodic patterns on a scale much larger than the original lattice, referred to as a “moiré …
periodic patterns on a scale much larger than the original lattice, referred to as a “moiré …
Visualization of multifractal superconductivity in a two-dimensional transition metal dichalcogenide in the weak-disorder regime
Eigenstate multifractality is a distinctive feature of noninteracting disordered metals close to
a metal–insulator transition, whose properties are expected to extend to superconductivity …
a metal–insulator transition, whose properties are expected to extend to superconductivity …
Lévy flight for electrons in graphene in the presence of regions with enhanced spin-orbit coupling
DB Fonseca, ALR Barbosa, LFC Pereira - Physical Review B, 2024 - APS
In this work, we propose an electronic Lévy glass built from graphene nanoribbons in the
presence of regions with enhanced spin-orbit coupling. Although electrons in graphene …
presence of regions with enhanced spin-orbit coupling. Although electrons in graphene …
Multifractal conductance fluctuations in high-mobility graphene in the integer quantum Hall regime
We present the first experimental evidence for the multifractality of a transport property at a
topological phase transition. In particular, we show that conductance fluctuations display …
topological phase transition. In particular, we show that conductance fluctuations display …
Turbulence hierarchy and multifractality in the integer quantum hall transition
ALR Barbosa, THV de Lima, IRR González… - Physical Review Letters, 2022 - APS
We offer a new perspective on the problem of characterizing mesoscopic fluctuations in the
interplateau regions of the integer quantum Hall transition. We found that longitudinal and …
interplateau regions of the integer quantum Hall transition. We found that longitudinal and …
Quasiparticle and transport properties of disordered bilayer graphene
In recent experimental and theoretical studies of graphene, disorder scattering processes
have been suggested to play an important role in its electronic and transport properties. In a …
have been suggested to play an important role in its electronic and transport properties. In a …
Multifractal Conductance Fluctuations of Helical Edge States
Two-dimensional topological insulators are characterized by the bulk gap and one-
dimensional helical states running along the edges. The theory predicts the topological …
dimensional helical states running along the edges. The theory predicts the topological …
Lévy flight for electrons in graphene: Superdiffusive-to-diffusive transport transition
DB Fonseca, LFC Pereira, ALR Barbosa - Physical Review B, 2023 - APS
In this paper we propose an electronic Lévy glass, analogous to a recent optical realization.
To that end, we investigate the transmission of electrons in graphene nanoribbons in the …
To that end, we investigate the transmission of electrons in graphene nanoribbons in the …
Multifractal magnetoconductance fluctuations in mesoscopic systems
We perform a multifractal detrended fluctuation analysis of the magnetoconductance data of
two standard types of mesoscopic systems: a disordered nanowire and a ballistic chaotic …
two standard types of mesoscopic systems: a disordered nanowire and a ballistic chaotic …