Articles with "dirac cones" as a keyword



Constructing the Dirac Electronic Behavior Database of Under‐Stress Transition Metal Dichalcogenides for Broad Applications

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Published in 2025 at "Advanced Materials"

DOI: 10.1002/adma.202416082

Abstract: Discovering and utilizing the unique optoelectronic properties of transition metal dichalcogenides (TMDCs) is of great significance for developing next‐generation electronic devices. In particular, research on Dirac state modulations of TMDCs under external strains is lacking.… read more here.

Keywords: transition metal; dirac cones; broad applications; dirac ... See more keywords

The topology and robustness of two Dirac cones in S-graphene: A tight binding approach

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Published in 2020 at "Scientific Reports"

DOI: 10.1038/s41598-020-59262-2

Abstract: Present work reports an elegant method to address the emergence of two Dirac cones in a non-hexagonal graphene allotrope S-graphene (SG). We have availed nearest neighbour tight binding (NNTB) model to validate the existence of two… read more here.

Keywords: tight binding; topology robustness; two dirac; dirac cones ... See more keywords
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Tunable Dirac cones in two-dimensional covalent organic materials: C2N6S3 and its analogs

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Published in 2017 at "RSC Advances"

DOI: 10.1039/c7ra10950d

Abstract: Two-dimensional covalent organic frameworks (2D-COFs) are drawing increasing interest due to the unique configurations and exotic properties. Here, using density-functional theory calculations, we prove the stability of C2N6S3 monolayer by an imagery-frequency-free phonon spectrum, and… read more here.

Keywords: dimensional covalent; tunable dirac; two dimensional; dirac cones ... See more keywords
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Realizing graphene-like Dirac cones in triangular boron sheets by chemical functionalization

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Published in 2020 at "Journal of Materials Chemistry C"

DOI: 10.1039/c9tc06464h

Abstract: The most important feature in graphene is its unique Dirac cone, which is closely associated with many novel properties. However, this type of Dirac cone is rare and difficult to realize in non-group-IV two-dimensional (2D)… read more here.

Keywords: boron; like dirac; dirac cones; graphene like ... See more keywords

The coexistence of Dirac cones and Fermi arcs in a graphene/WTe2 heterostructure.

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Published in 2025 at "Nanoscale"

DOI: 10.1039/d5nr03824c

Abstract: We report on the electronic properties of a van der Waals heterostructure formed by graphene and a type-II Weyl semimetal (Td-WTe2), hosting features of both Dirac and Weyl semimetals. By combining angle-resolved photoemission spectroscopy (ARPES),… read more here.

Keywords: spectroscopy; coexistence dirac; cones fermi; heterostructure ... See more keywords

Seeking the Dirac cones in the MoS2/WSe2 van der Waals heterostructure

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Published in 2017 at "Applied Physics Letters"

DOI: 10.1063/1.4998305

Abstract: Ab initio calculations show that the bandgap of MoS2-WSe2 heterostructures can be significantly tuned by thickness engineering, perpendicular electric fields, and forming spin-valley coupling Dirac cones at the K and K ′ valleys. The intrinsic… read more here.

Keywords: mos2 wse2; seeking dirac; dirac cones; band ... See more keywords

Photonic surface Dirac cones in reciprocal magnetoelectric metamaterials

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Published in 2025 at "Journal of Applied Physics"

DOI: 10.1063/5.0297768

Abstract: We investigate photonic surface Dirac cones in reciprocal magnetoelectric metamaterials characterized by purely imaginary antisymmetric off-diagonal chirality parameters. The underlying medium is considered a photonic analog of topological insulators that support topologically protected edge states.… read more here.

Keywords: photonic surface; cones reciprocal; surface dirac; surface ... See more keywords

Anisotropic and gate-tunable valley filtering based on 8-Pmmn borophene.

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Published in 2020 at "Nanotechnology"

DOI: 10.1088/1361-6528/abbbd7

Abstract: We propose a valley filter based on 8-Pmmn borophene which hosts two tilted Dirac cones. It is found that the application of a magnetic-electric barrier provided by a single ferromagnetic gate is sufficient to create… read more here.

Keywords: based pmmn; pmmn borophene; gate; dirac cones ... See more keywords
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A simple rule for finding Dirac cones in bilayered perovskites

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Published in 2019 at "Chinese Physics B"

DOI: 10.1088/1674-1056/28/7/077106

Abstract: We propose a simple rule for finding Dirac cone electronic states in solids, that is neglecting those lattice atoms inert to the particular electronic bands, and pursuing the two dimensional (2D) graphene-like quasi-atom lattices with… read more here.

Keywords: simple rule; dirac cones; finding dirac; rule finding ... See more keywords

Twisting the Dirac cones of the SU(4) spin-orbital liquid on the honeycomb lattice

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Published in 2022 at "Physical Review B"

DOI: 10.1103/physrevb.107.l180401

Abstract: By combining the density matrix renormalization group (DMRG) method with Gutzwiller projected wave functions, we study the SU(4) symmetric spin-orbital model on the honeycomb lattice. We find that the ground states can be well described… read more here.

Keywords: twisting dirac; orbital liquid; dirac cones; honeycomb lattice ... See more keywords

Nonlinear Dirac Cones

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Published in 2017 at "Physical Review B"

DOI: 10.1103/physrevb.96.121406

Abstract: Physics arising from two-dimensional~(2D) Dirac cones has been a topic of great theoretical and experimental interest to studies of gapless topological phases and to simulations of relativistic systems. Such $2$D Dirac cones are often characterized… read more here.

Keywords: dirac cones; phase; nonlinear dirac; berry phase ... See more keywords