InBi: A Ferroelastic Monolayer with Strain Tunable Spin-Orbit Dirac Points and Carrier Self-Doping Effect.
Sign Up to like & getrecommendations! Published in 2022 at "ACS nano"
DOI: 10.1021/acsnano.2c10387
Abstract: Semimetallic two-dimensional (2D) Dirac materials beyond graphene, especially 2D materials with robust Dirac points against the spin-orbit coupling (SOC), are still highly sought. Herein, we theoretically demonstrate the InBi monolayer as a long-sought 2D Dirac… read more here.
Keywords: dirac points; spin orbit; strain; monolayer ... See more keywords
Cp-Graphyne: A Low-Energy Graphyne Polymorph with Double Distorted Dirac Points
Sign Up to like & getrecommendations! Published in 2017 at "ACS Omega"
DOI: 10.1021/acsomega.7b00513
Abstract: In the present investigation, we have proposed a novel form of two-dimensional (2D) carbon allotropes with the aid of first-principle density functional theory-based calculations. The carbon polymorph is mainly composed of carbon pentagons (cp) and… read more here.
Keywords: distorted dirac; double distorted; dirac points; graphyne low ... See more keywords
Tunable Dirac points and high spin polarization in ferromagnetic-strain graphene superlattices
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/s41598-017-14948-y
Abstract: Spin-dependent energy bands and transport properties of ferromagnetic-strain graphene superlattices are studied. The high spin polarization appears at the Dirac points due to the presence of spin-dependent Dirac points in the energy band structure. A… read more here.
Keywords: dirac points; high spin; spin polarization;
Quasi-Dirac points in electron-energy spectra of crystals
Sign Up to like & getrecommendations! Published in 2024 at "Communications Physics"
DOI: 10.1038/s42005-024-01788-2
Abstract: Specific properties, such as surface Fermi arcs, features of quantum oscillations and of various responses to a magnetic field, distinguish Dirac semimetals from ordinary materials. These properties are determined by Dirac points at which a… read more here.
Keywords: electron energy; dirac semimetals; dirac points; quasi dirac ... See more keywords
A perfect match between borophene and aluminium in the AlB3 heterostructure with covalent Al–B bonds, multiple Dirac points and a high Fermi velocity
Sign Up to like & getrecommendations! Published in 2022 at "Chemical Science"
DOI: 10.1039/d1sc05207a
Abstract: By performing a swarm-intelligent global structure search combined with first-principles calculations, a stable two-dimensional (2D) AlB3 heterostructure with directed, covalent Al–B bonds forms due to a nearly perfect lattice match between 2D borophene and the… read more here.
Keywords: match borophene; multiple dirac; borophene; alb3 heterostructure ... See more keywords
Emergence of symmetric and asymmetric Dirac points under periodic electric and vector potentials in ABA-trilayer graphene superlattice
Sign Up to like & getrecommendations! Published in 2024 at "RSC Advances"
DOI: 10.1039/d4ra05553e
Abstract: We have theoretically investigated the impact of both periodic electric and vector potentials on the low energy spectrum of ABA-trilayer graphene superlattice. Finite energy Dirac points appear in the energy spectrum due to the application… read more here.
Keywords: electric vector; vector; dirac points; spectrum ... See more keywords
Study of strain-mediated Dirac point shift in monolayer SbSSn by second harmonic generation
Sign Up to like & getrecommendations! Published in 2025 at "Physica Scripta"
DOI: 10.1088/1402-4896/ae08f8
Abstract: Strain provides a degree of freedom for effectively tailoring the electronic and optical properties of two-dimensional (2D) materials. Here, we theoretically demonstrate that the shift of two Dirac points under the tensile strain in the… read more here.
Keywords: fermi level; dirac points; shift; point ... See more keywords
Two-dimensional antiferromagnetic Dirac fermions in monolayer TaCoTe2
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.205102
Abstract: Dirac point in two-dimensional (2D) materials has been a fascinating subject of research. Recently, it has been theoretically predicted that Dirac point may also be stabilized in 2D magnetic systems. However, it remains a challenge… read more here.
Keywords: dirac points; two dimensional; afm dirac; dirac point ... See more keywords
Winding Vector: How to Annihilate Two Dirac Points with the Same Charge.
Sign Up to like & getrecommendations! Published in 2018 at "Physical review letters"
DOI: 10.1103/physrevlett.121.256402
Abstract: The merging or emergence of a pair of Dirac points may be classified according to whether the winding numbers which characterize them are opposite (+- scenario) or identical (++ scenario). From the touching point between… read more here.
Keywords: winding vector; dirac points; two dirac; scenario ... See more keywords
Stabilized Dirac points in one-dimensional non-Hermitian optical lattices.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.471869
Abstract: We demonstrate stable Dirac points (DPs) in low dimensions by taking advantage of non-Hermiticity in an optical lattice composed of two coupled Su-Schrieffer-Heeger chains. The occurrence of DPs stems from the constraints of pseudo-Hermiticity and… read more here.
Keywords: points one; dirac points; stabilized dirac; non hermitian ... See more keywords
Imaginary coupling induced Dirac points and group velocity control in the non-reciprocal Hermitian lattice.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.475254
Abstract: We propose a mechanism to achieve the group velocity control of bifurcation light via an imaginary coupling effect in the non-reciprocal lattice. The physical model is composed of two-layer photonic lattices with non-reciprocal coupling in… read more here.
Keywords: velocity control; group; imaginary coupling; group velocity ... See more keywords