Tangent fermions: Dirac or Majorana fermions on a lattice without fermion doubling

CWJ Beenakker, A Donís Vela, G Lemut… - Annalen der …, 2023 - Wiley Online Library
Methods to discretize the Hamiltonian of a topological insulator or topological
superconductor, without giving up on the topological protection of the massless excitations …

High‐index faceted RuCo nanoscrews for water electrosplitting

T Zhu, J Huang, B Huang, N Zhang… - Advanced Energy …, 2020 - Wiley Online Library
Shape control has realized huge success for develo** efficient Pd/Pt‐based
nanocatalysts, but the control of Ru‐based nanocrystals remains a formidable challenge …

Generalized eigenproblem without fermion doubling for Dirac fermions on a lattice

M Pacholski, G Lemut, J Tworzydlo, C Beenakker - SciPost Physics, 2021 - scipost.org
The spatial discretization of the single-cone Dirac Hamiltonian on the surface of a
topological insulator or superconductor needs a special" staggered" grid, to avoid the …

Absence of equilibrium edge currents in theoretical models of topological insulators

W Chen - Physical Review B, 2020 - APS
The low-energy sector of 2D and 3D topological insulators (TIs) exhibits propagating edge
states, which has speculated the existence of equilibrium edge currents or edge spin …

[HTML][HTML] Extracting unconventional spin texture in two dimensional topological crystalline insulator bismuthene via tuning bulk-edge interactions

Y Yin, C Wang, MS Fuhrer, NV Medhekar - Materials Today Physics, 2023 - Elsevier
Tuning the interaction between the bulk and edge states of topological materials is a
powerful tool for manipulating edge transport behavior, opening up exciting opportunities for …

Fabry-Pérot resonant vortices and magnetoconductance in topological insulator constrictions with magnetic barriers

RP Maciel, AL Araújo, CH Lewenkopf, GJ Ferreira - Physical Review B, 2021 - APS
The edge states of two-dimensional time-reversal topological insulators support a perfect
helical conductance on wide ribbons due to the absence of backscattering. Here, we study …

Constructing low-dimensional quantum devices based on the surface state of topological insulators

TY Zhang, Q Yan, QF Sun - Chinese Physics Letters, 2021 - iopscience.iop.org
We propose a new method to construct low-dimensional quantum devices consisting of the
magnetic topological insulators. Unlike previous systems based on locally depleting two …

Resonant helical multi-edge transport in Sierpi\'nski carpets

MA Sandoval, AL Araújo, FC de Lima… - arxiv preprint arxiv …, 2024 - arxiv.org
In recent years, synthesis and experimental research of fractalized materials has evolved in
a paradigmatic crossover with topological phases of matter. We present here a theoretical …

Single-cone Dirac edge states on a lattice

AD Vela, CWJ Beenakker - arxiv preprint arxiv:2411.11564, 2024 - arxiv.org
The stationary Dirac equation $(p\cdot\sigma)\psi= E\psi $, confined to a two-dimensional
(2D) region, supports states propagating along the boundary and decaying exponentially …

A Sub-kBT/q Dirac-source Graphene Nanoribbon Field-effect Transistor

E Chen, A Sanchez-Soares, T Kelly… - … on Simulation of …, 2021 - ieeexplore.ieee.org
A sub-k BT/q Dirac-source (DS) graphene nanoribbon FET has been studied using a
coupled mode-space non-equilibrium Green function solver employing k⋅p electronic …