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 …

Universality of quantum phase transitions in the integer and fractional quantum Hall regimes

S Kaur, T Chanda, KR Amin, D Sahani… - Nature …, 2024 - nature.com
Fractional quantum Hall (FQH) phases emerge due to strong electronic interactions and are
characterized by anyonic quasiparticles, each distinguished by unique topological …

Multifractal conductance fluctuations in high-mobility graphene in the integer quantum Hall regime

KR Amin, R Nagarajan, R Pandit, A Bid - Physical Review Letters, 2022 - APS
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 …

Superlattice-induced electron percolation within a single Landau level

N Roy, B Peng, B Yang - Physical Review B, 2024 - APS
We investigate the quantum Hall effect in a single Landau level in the presence of a square
superlattice of δ-function potentials. The interplay between the superlattice spacing as and …

Multifractal Conductance Fluctuations of Helical Edge States

EB Olshanetsky, GM Gusev, AD Levin, ZD Kvon… - Physical Review Letters, 2023 - APS
Two-dimensional topological insulators are characterized by the bulk gap and one-
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 …

Optimization of the tunneling magnetoresistance and spin-valley polarization in complex magnetic silicene structures

R Rodríguez-González, LA Díaz-Valerio… - Journal of Applied …, 2023 - pubs.aip.org
Aperiodic order is ubiquitous in nature and quite relevant in science and technology. There
are extensive works in aperiodic structures studying fundamental characteristics in physical …

Wave functions in the critical phase: A planar Sierpiński fractal lattice

Q Yao, X Yang, AA Iliasov, MI Katsnelson, S Yuan - Physical Review B, 2024 - APS
Electronic states play a crucial role in many quantum systems of moiré superlattices,
quasicrystals, and fractals. As recently reported for Sierpiński lattices [Yao, Phys. Rev. B 107 …

Turbulence hierarchy in foreign exchange markets

GL Vasconcelos, LRC Ribeiro, AMS Macêdo… - Physical Review E, 2024 - APS
We present a multiscale stochastic analysis of foreign exchange rates using the H-theory
formalism, which provides a hierarchical intermittency model for the information cascade in …

Multifractal fluctuations in zebrafish (Danio rerio) polarization time series

ARC Romaguera, JVA Vasconcelos… - The European Physical …, 2024 - Springer
In this work, we study the polarization time series obtained from experimental observation of
a group of zebrafish (Danio rerio) confined in a circular tank. The complex dynamics of the …