Results 11 to 20 of about 259,006 (285)
Type-III and Tilted Dirac Cones Emerging from Flat Bands in Photonic Orbital Graphene
Physical Review X, 2019 The extraordinary electronic properties of Dirac materials, the two-dimensional partners of Weyl semimetals, arise from the linear crossings in their band structure.
M. Milićević +10 more
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Tunable Superlattice in Graphene To Control the Number of Dirac Points
Nano Letters, 2013 Superlattice in graphene generates extra Dirac points in the band structure and their number depends on the superlattice potential strength. Here, we have created a lateral superlattice in a graphene device with a tunable barrier height using a ...
Bhat, Ajay K. +8 more
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Electronic reconstruction forming a C 2-symmetric Dirac semimetal in Ca3Ru2O7
npj Quantum Materials, 2021 Electronic band structures in solids stem from a periodic potential reflecting the structure of either the crystal lattice or electronic order. In the stoichiometric ruthenate Ca3Ru2O7, numerous Fermi surface-sensitive probes indicate a low-temperature ...
M. Horio +21 more
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Observation of dimension-crossover of a tunable 1D Dirac fermion in topological semimetal NbSi x Te2
npj Quantum Materials, 2022 Condensed matter systems in low dimensions exhibit emergent physics that does not exist in three dimensions. When electrons are confined to one dimension (1D), some significant electronic states appear, such as charge density wave, spin-charge ...
Jing Zhang +13 more
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Unitary Howe dualities in fermionic and bosonic algebras and related Dirac operators
SciPost Physics Proceedings, 2023 In this paper we use the canonical complex structure $\mathbb{J}$ on $\mathbb{R}^{2n}$ to introduce a twist of the symplectic Dirac operator. This can be interpreted as the bosonic analogue of the Dirac operators on a Hermitian manifold.
Guner Muarem
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Optical valley separation in two-dimensional semimetals with tilted Dirac cones
Scientific Reports, 2023 Quasiparticles emerging in crystalline materials can possess a binary flavor known as the valley quantum number which can be used as a basis to encode information in an emerging class of valleytronic devices.
Andrew Wild, Eros Mariani, M. E. Portnoi
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Integration of Dirac–Jacobi structures [PDF]
Journal of Physics A: Mathematical and General, 2006 10 pages. Brief changes in the introduction.
Ponte, David Iglesias, Wade, Aissa
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The Dirac -- Kerr-Newman electron [PDF]
, 2008 We discuss the relation of the Kerr-Newman spinning particle to the Dirac electron and show that the Dirac equation may naturally be incorporated into Kerr-Schild formalism as a master equation controlling the Kerr-Newman geometry. As a result, the Dirac
Burinskii, Alexander
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Dirac Structures in Nonequilbrium Thermodynamics [PDF]
Journal of Mathematical Physics, 2017 Dirac structures are geometric objects that generalize both Poisson structures and presymplectic structures on manifolds. They naturally appear in the formulation of constrained mechanical systems. In this paper, we show that the evolution equations for nonequilibrium thermodynamics admit an intrinsic formulation in terms of Dirac structures, both on ...
Gay-Balmaz, François +1 more
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Transport Phenomena in Multilayered Massless Dirac Fermion System α-(BEDT-TTF)2I3
Crystals, 2012 A zero-gap state with a Dirac cone type energy dispersion was discovered in an organic conductor α-(BEDT-TTF)2I3 under high hydrostatic pressures. This is the first two-dimensional (2D) zero-gap state discovered in bulk crystals with a layered structure.
Naoya Tajima, Yutaka Nishio, Koji Kajita
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