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Photoconductivity in Dirac materials
Published 2015-11-01“…Two-dimensional (2D) Dirac materials including graphene and the surface of a three-dimensional (3D) topological insulator, and 3D Dirac materials including 3D Dirac semimetal and Weyl semimetal have attracted great attention due to their linear Dirac nodes and exotic properties. …”
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Correlated fractional Dirac materials
Published 2023-07-01“…Fractional Dirac materials (FDMs) feature a fractional energy-momentum relation E(k)∼|k|^{α}, where α(<1) is a real noninteger number, in contrast to that in conventional Dirac materials with α=1. …”
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Robustness and universality of surface states in Dirac materials
Published 2019“…Here we describe a nontopological mechanism that produces such states at the surfaces of generic Dirac materials, giving rise to propagating surface modes with energies near the bulk band crossing. …”
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Topological Valley Currents in Gapped Dirac Materials
Published 2015“…Gapped 2D Dirac materials, in which inversion symmetry is broken by a gap-opening perturbation, feature a unique valley transport regime. …”
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Electrodynamics of Topologically Ordered Quantum Phases in Dirac Materials
Published 2021-10-01“…The emergent carrier density wave transport phase is discussed to show that transmission through the collective excitation mode in multilayer heterostructures is a unique possibility in plasmonic, optoelectronic, and photonic applications when atomic clusters of Dirac materials are integrated within nanostructures, as patterned or continuous surfaces.…”
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Giant hall photoconductivity in narrow-gapped dirac materials
Published 2020“…Carrier dynamics acquire a new character in the presence of Bloch-band Berry curvature, which naturally arises in gapped Dirac materials (GDMs). Here, we argue that photoresponse in GDMs with small band gaps is dramatically enhanced by Berry curvature. …”
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All-optical band engineering of gapped Dirac materials
Published 2017“…We demonstrate theoretically that the interaction of electrons in gapped Dirac materials (gapped graphene and transition-metal dichalchogenide monolayers) with a strong off-resonant electromagnetic field (dressing field) substantially renormalizes the band gaps and the spin-orbit splitting. …”
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Nonunitary multiorbital superconductivity from competing interactions in Dirac materials
Published 2022-03-01“…We establish this mechanism both from a Ginzburg-Landau perspective and from a fully microscopic self-consistent solution of a multiorbital Dirac material. Our results put forward competing interactions as a powerful mechanism for driving nonunitary multiorbital superconductivity.…”
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Higher-order topological insulators in two-dimensional Dirac materials
Published 2021-12-01“…Here we propose a universal strategy of antidot engineering to realize second-order topological insulators (SOTIs) in 2D Dirac materials. Based on symmetry analysis, tight-binding model, and first-principles calculations, we demonstrate SOTIs in antidot-decorated Xene (X=C, Si,and Ge) by displaying its finite bulk quadrupole moment, weak topological edge states, and in-gap topological corner states. …”
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Dirac node engineering and flat bands in doped Dirac materials
Published 2021-07-01“…We suggest the tried approach of impurity band engineering to produce flat bands and additional nodes in Dirac materials. We show that surface impurities give rise to nearly flat impurity bands close to the Dirac point. …”
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All-Metallic Vertical Transistors Based on Stacked Dirac Materials
Published 2015“…All metallic transistor can be fabricated from pristine semimetallic Dirac materials (such as graphene, silicene, and germanene), but the on/off current ratio is very low. …”
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Time-reversal and rotation symmetry breaking superconductivity in Dirac materials
Published 2017“…We consider mixed symmetry superconducting phases in Dirac materials in the odd-parity channel, where pseudoscalar and vector order parameters can coexist due to their similar critical temperatures when attractive interactions are of a finite range. …”
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Small Fermi surfaces and strong correlation effects in Dirac materials with holography
Published 2017-10-01“…We study the strong correlation effects in the transport coefficients of Dirac materials doped with magnetic impurity under the magnetic field using holographic method. …”
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Dirac Materials and an Identity for the Grand Potential of the Nondegenerate Statistical Thermodynamic Regime
Published 2023-01-01Subjects: “…Dirac materials…”
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Polysilyne chains bridged with beryllium lead to flat 2D Dirac materials
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The role of spin–orbit coupling in topologically protected interface states in Dirac materials
Published 2014-01-01Subjects: “…Dirac materials…”
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Two-dimensional Dirac materials: Tight-binding lattice models and material candidates
Published 2023-01-01“…This work provides a brief review of the recent developments in the lattice models of 2D Dirac materials and their relevant real material counterparts that are crucial for understanding the origins of 2D Dirac cones in electronic band structures as well as their material design and device applications. …”
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