Giant and controllable valley currents in graphene by double pumped thz light
The field of valleytronics considers the creation and manipulation of “valley states”, charge
excitations characterized by a particular value of the crystal momentum in the Brillouin zone …
excitations characterized by a particular value of the crystal momentum in the Brillouin zone …
Current splitting and valley polarization in elastically deformed graphene
T Stegmann, N Szpak - 2D Materials, 2018 - iopscience.iop.org
Elastic deformations of graphene can significantly change the flow paths and valley
polarization of the electric currents. We investigate these phenomena in graphene …
polarization of the electric currents. We investigate these phenomena in graphene …
Klein tunneling in Weyl semimetals under the influence of magnetic field
Klein tunneling refers to the absence of normal backscattering of electrons even under the
case of high potential barriers. At the barrier interface, the perfect matching of electron and …
case of high potential barriers. At the barrier interface, the perfect matching of electron and …
In situ strain tuning in hBN-encapsulated graphene electronic devices
Using a simple setup to bend a flexible substrate, we demonstrate deterministic and
reproducible in situ strain tuning of graphene electronic devices. Central to this method is …
reproducible in situ strain tuning of graphene electronic devices. Central to this method is …
Graphene quantum strain transistors
AC McRae, G Wei, AR Champagne - Physical Review Applied, 2019 - APS
There is a wide range of science and applications accessible via the strain engineering of
quantum transport in 2D materials. We propose a realistic experimental platform for uniaxial …
quantum transport in 2D materials. We propose a realistic experimental platform for uniaxial …
Electrically tunable valley polarization in Weyl semimetals with tilted energy dispersion
Tunneling transport across electrical potential barriers in Weyl semimetals with tilted energy
dispersion is investigated. We report that the electrons around different valleys experience …
dispersion is investigated. We report that the electrons around different valleys experience …
Quantized transport, strain-induced perfectly conducting modes, and valley filtering on shape-optimized graphene Corbino devices
The extreme mechanical resilience of graphene and the peculiar coupling it hosts between
lattice and electronic degrees of freedom have spawned a strong impetus toward strain …
lattice and electronic degrees of freedom have spawned a strong impetus toward strain …
Effectuating tunable valley selection via multiterminal monolayer graphene devices
S Tapar, B Muralidharan - Physical Review B, 2023 - APS
Valleytronics using two-dimensional materials opens unprecedented opportunities for
information processing using a valley polarizer as a basic building block. Various …
information processing using a valley polarizer as a basic building block. Various …
Perfect valley filter controlled by Fermi velocity modulation in graphene
ARS Lins, JRF Lima - Carbon, 2020 - Elsevier
In this work we investigate the effects of a Fermi velocity modulation in a valley filter in
graphene created by a combination of a magnetic and electric barrier. With the effective …
graphene created by a combination of a magnetic and electric barrier. With the effective …
Symmetry and magnetization effect on the selective spin-valley polarized transport through the ferromagnetic-normal-ferromagnetic ZSiNR junction
M Li, ZB Feng, ZY Zhao - Physica E: Low-Dimensional Systems and …, 2023 - Elsevier
We study the symmetry, magnetization, temperature and electrostatic gating effect on the
selective spin-valley polarized transport through the zigzag silicene nanoribbon (ZSiNR) …
selective spin-valley polarized transport through the zigzag silicene nanoribbon (ZSiNR) …