Results 31 to 40 of about 1,413 (181)
Weyl semimetal/insulator transition from holography
Journal of High Energy Physics, 2018 We study a holographic model which exhibits a quantum phase transition from the strongly interacting Weyl semimetal phase to an insulating phase. In the holographic insulating phase there is a hard gap in the real part of frequency dependent diagonal ...
Yan Liu, Junkun Zhao
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High-pressure induced Weyl semimetal phase in 2D Tellurium
Communications Physics, 2023 Relativistic Weyl fermion quasiparticles in Weyl semimetal bring the electron’s chirality degree of freedom into the electrical transport and give rise to exotic phenomena.
Chang Niu +7 more
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Physical Review B, 2017 A family of topological semimetallic phases where twofold degenerate gapless points form linked rings is introduced. We refer to this phase as Weyl-link semimetals. A concrete two-band model with two linked nodal lines is constructed. We demonstrate that the Chern-Simons 3-form depends on the linking number of rings in a generic two-band model.
Chang, Po-Yao, Yee, Chuck-Hou
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Chiral Landau levels in Weyl semimetal NbAs with multiple topological carriers
Nature Communications, 2018 How the carriers behave in a Weyl semimetal if they occupy the lowest Landau level remains elusive. Here, the authors report evidences of electrons occupying zeroth chiral Landau levels with distinct linear dispersion behaviors for two inequivalent Weyl ...
Xiang Yuan +23 more
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Circular Phonon Dichroism in Weyl Semimetals [PDF]
Physical Review Letters, 2017 5 pages, 3 figures, 5 page Supplementary ...
Liu, Donghao, Shi, Junren
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Stability of the Weyl-semimetal phase on the pyrochlore lattice
New Journal of Physics, 2018 Motivated by the proposal of a Weyl-semimetal phase in pyrochlore iridates, we consider a Hubbard-type model on the pyrochlore lattice. To shed light on the question as to why such a state has not been observed experimentally, its robustness is analyzed.
Christoph Berke +2 more
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Zitterbewegung in time-reversal Weyl semimetals [PDF]
Journal of Physics: Condensed Matter, 2018 We perform a systematic study of the Zitterbewegung effect of fermions, which are described by a Gaussian wave with broken spatial-inversion symmetry in a three-dimensional low-energy Weyl semimetal. Our results show that the motion of fermions near the Weyl points is characterized by rectilinear motion and Zitterbewegung oscillation.
Tongyun Huang, Tianxing Ma, Li-Gang Wang
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Surface plasmons in Weyl semimetals [PDF]
Journal of Physics: Condensed Matter, 2018 The surface plasmon excitation spectrum is calculated for the Weyl semimetal within the random phase approximation. Recently, a surface plasmon mode has been predicted to exist at the three-dimensional Dirac semimetal surface due to the Dirac plasmon mode in the bulk.
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Signature of type-II Weyl semimetal phase in MoTe2
Nature Communications, 2017 A special class of topological Weyl semimetal state is predicted without respecting Lorentz symmetry. Here, Jianget al. report direct visualization of the unique surface Fermi arcs of MoTe2, confirming its type-II topological Weyl semimetal nature.
J. Jiang +17 more
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Visualizing discrete Fermi surfaces and possible nodal-line to Weyl state evolution in ZrSiTe
npj Quantum Materials, 2022 Topological nodal line semimetals (TNLSMs) represent a quantum state of topological matter. When the crystal/time-reversal symmetry is broken, a nodal line state is expected to evolve into a Dirac semimetal, a Weyl semimetal, or other topological phases ...
Qi Bian +11 more
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