Results 31 to 40 of about 9,692 (194)

A Raman probe of phonons and electron–phonon interactions in the Weyl semimetal NbIrTe4

open access: yesScientific Reports, 2021
There is tremendous interest in measuring the strong electron–phonon interactions seen in topological Weyl semimetals. The semimetal NbIrTe4 has been proposed to be a Type-II Weyl semimetal with 8 pairs of opposite Chirality Weyl nodes which are very ...
Iraj Abbasian Shojaei   +8 more
doaj   +1 more source

Weyl Semimetals as Hydrogen Evolution Catalysts [PDF]

open access: yesAdvanced Materials, 2017
The search for highly efficient and low‐cost catalysts is one of the main driving forces in catalytic chemistry. Current strategies for the catalyst design focus on increasing the number and activity of local catalytic sites, such as the edge sites of molybdenum disulfides in the hydrogen evolution reaction (HER).
Rajamathi, C.   +13 more
openaire   +5 more sources

How massless are Weyl fermions in Weyl semimetals

open access: yesPhysical Review B, 2023
12 pages, 6 ...
Amar Bharti, Misha Ivanov, Gopal Dixit
openaire   +2 more sources

Weyl semimetal/insulator transition from holography

open access: yesJournal 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
doaj   +1 more source

Fermi Arcs and Their Topological Character in the Candidate Type-II Weyl Semimetal MoTe_{2}

open access: yesPhysical Review X, 2016
We report a combined experimental and theoretical study of the candidate type-II Weyl semimetal MoTe_{2}. Using laser-based angle-resolved photoemission, we resolve multiple distinct Fermi arcs on the inequivalent top and bottom (001) surfaces.
A. Tamai   +11 more
doaj   +1 more source

High-pressure induced Weyl semimetal phase in 2D Tellurium

open access: yesCommunications 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
doaj   +1 more source

Weyl-link semimetals

open access: yesPhysical 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
openaire   +3 more sources

Chiral Landau levels in Weyl semimetal NbAs with multiple topological carriers

open access: yesNature 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
doaj   +1 more source

Circular Phonon Dichroism in Weyl Semimetals [PDF]

open access: yesPhysical Review Letters, 2017
5 pages, 3 figures, 5 page Supplementary ...
Liu, Donghao, Shi, Junren
openaire   +3 more sources

Stability of the Weyl-semimetal phase on the pyrochlore lattice

open access: yesNew 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
doaj   +1 more source

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