Results 71 to 80 of about 9,692 (194)

Tilted disordered Weyl semimetals [PDF]

Physical Review B, 2017
8 pages, 8 ...
Trescher, Maximilian, Sbierski, Björn, Brouwer, Piet W., Bergholtz, Emil J.   +3 more
openaire   +2 more sources

Hidden-Symmetry-Protected Topological Semimetals on a Square Lattice

, 2013
We study a two-dimensional fermionic square lattice, which supports the existence of two-dimensional Weyl semimetal, quantum anomalous Hall effect, and $2\pi$-flux topological semimetal in different parameter ranges.
Hou, Jing-Min
core   +1 more source

Direct Photocurrent Detection of Optical Vortex Based on the Orbital Photo Galvanic Effect: Progress, Challenge, and Perspective

Advanced Science, EarlyView.
Direct orbital angular momentum (OAM) detection through the orbital photogalvanic effect offers a scalable route for integrated optoelectronics. This perspective evaluates symmetry‐driven material selection and demonstrates how electrode matrices enable the resolution of complex, mixed OAM modes.
Jinluo Cheng, Dehong Yang, Weiming Wang, Chang Xu, Zipu Fan, Dong Sun   +5 more
wiley   +1 more source

Dipolar Weyl semimetals

Physical Review B
In time-reversal symmetry-broken Weyl semimetals, Weyl points act as monopoles and antimonopoles of the Berry curvature, with a monopole-antimonopole pair producing a net zero Berry flux. The two-dimensional (2D) planes that separate a monopole-antimonopole pair of Weyl points carry quantized Berry flux.
Alexander C. Tyner, Shouvik Sur
openaire   +2 more sources

Helicons in Weyl semimetals [PDF]

Physical Review B, 2015
5 pages, 1 ...
F. M. D. Pellegrino, M. Katsnelson, M. Polini   +2 more
openaire   +5 more sources

Giant Berry curvature dipole density in a ferroelectric Weyl semimetal

npj Quantum Materials, 2022
The nonlinear Hall effect (NLHE) reflects Berry-curvature-related properties in non-centrosymmetric but time-reversal-symmetric materials. So far, the NLHE of the investigated systems remains a tiny effect due to the lack of Weyl point as magnetic ...
Cheng-Long Zhang, Tian Liang, Yoshio Kaneko, Naoto Nagaosa, Yoshinori Tokura   +4 more
doaj   +1 more source

Double Andreev Reflections in Type-II Weyl Semimetal-Superconductor Junctions

, 2017
We study the Andreev reflections (ARs) at the interface of the type-II Weyl semimetal-superconductor junctions and find double ARs when the superconductor is put in the Weyl semimetal band tilting direction, which is similar to the double reflections of ...
Hou, Zhe, Sun, Qing-Feng
core   +2 more sources

Lifshitz Transition in Correlated Topological Semimetals

Advanced Science, EarlyView.
Theoretical calculations reveal that in YPtBi and GdPtBi, strong electronic correlations shift topological Dirac nodes away from the Fermi level by forming large hole pockets. This effect is sensitive to temperature and arises from interactions among 4d or 4f electrons, offering insights into Fermi surface engineering in quantum materials.
Byungkyun Kang, Myoung‐Hwan Kim, Chul Hong Park, Anderson Janotti, Eunja Kim   +4 more
wiley   +1 more source

Near-infrared biosensors based on optical Tamm plasmons in one-dimensional photonic crystal heterostructre containing Weyl semimetals

Results in Physics
Weyl semimetals exhibit exceptional electronic and optical properties, positioning them as promising candidates for a wide range of applications. Notably, these materials naturally support surface waves in the infrared frequency range.
Ban Khalid Mohammed, Babak Abdollahipour, Somayeh Oskoui Abdol   +2 more
doaj   +1 more source

Terahertz transmission through TaAs single crystals in simultaneously applied magnetic and electric fields: Possible optical signatures of the chiral anomaly in a Weyl semimetal

Results in Physics, 2019
We report optical transmission measurements through a single crystal of the Weyl semimetal TaAs at terahertz frequencies. The measurements were performed at T=1.6 K using intense coherent light from a free-electron laser in high magnetic fields.
Felix Hütt, Dmytro Kamenskyi, David Neubauer, Chandra Shekhar, Claudia Felser, Martin Dressel, Artem V. Pronin   +6 more
doaj   +1 more source