Results 101 to 110 of about 1,413 (181)

On Anderson Localization and Chiral Anomaly in Disordered Time-Reversal Invariant Weyl Semimetals: Nonperturbative and Berry Phase Effects

Scientific Reports, 2018
Weyl semimetal, a three-dimensional electronic system with relativistic linear energy dispersion around gapless points carrying nontrivial Berry charge, is predicted to exhibit a wealth of unique response and transport properties.
Imam Makhfudz
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Weyl Geometry in Weyl Semimetals

A novel oscillatory behaviour of the DC conductivity in Weyl semimetals with vacancies has recently been identified, occurring in the absence of external magnetic fields. Here, we argue that this effect has a geometric interpretation in terms of a magnetic-like field induced by an emergent Weyl connection.
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Imaging electronic states on topological semimetals using scanning tunneling microscopy

New Journal of Physics, 2016
Following the intense studies on topological insulators, significant efforts have recently been devoted to the search for gapless topological systems. These materials not only broaden the topological classification of matter but also provide a condensed ...
András Gyenis, Hiroyuki Inoue, Sangjun Jeon, Brian B Zhou, Benjamin E Feldman, Zhijun Wang, Jian Li, Shan Jiang, Quinn D Gibson, Satya K Kushwaha, Jason W Krizan, Ni Ni, Robert J Cava, B Andrei Bernevig, Ali Yazdani   +14 more
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Evidence for Weyl fermions in a canonical heavy-fermion semimetal YbPtBi

Nature Communications, 2018
Weyl fermions are evidenced in weakly correlated electron systems, but whether they survive strong electron correlations remains obscure. Here, Guo et al.
C. Y. Guo, F. Wu, Z. Z. Wu, M. Smidman, C. Cao, A. Bostwick, C. Jozwiak, E. Rotenberg, Y. Liu, F. Steglich, H. Q. Yuan   +10 more
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Pressure effects on crystal and electronic structure of bismuth tellurohalides

New Journal of Physics, 2016
We study the possibility of pressure-induced transitions from a normal semiconductor to a topological insulator (TI) in bismuth tellurohalides using density functional theory and tight-binding method.
I P Rusinov, T V Menshchikova, I Yu Sklyadneva, R Heid, K-P Bohnen, E V Chulkov   +5 more
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Weyl fermion excitations in the ideal Weyl semimetal CuTlSe_{2}

Physical Review Research
An ideal Weyl semimetal is characterized by a dispersion in which only Weyl cones intersect the Fermi level, with low-energy behavior being governed by Weyl fermions.
C. N. Wang, D. Tay, Q. X. Dong, Z. Okvátovity, B. M. Huddart, C. Y. Ma, K. Yokoyama, L. Yu, T. Lancaster, G. F. Chen, H.-R. Ott, T. Shiroka   +11 more
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Nonreciprocal Weyl semimetal waveguide

Physical Review Research
We study a cylindrical plasmonic waveguide consisting of a magnetic Weyl semimetal embedded in a dielectric medium. We determine the dispersion relation of the surface plasmon polaritons and show how it depends on the plasma frequency, the radius of the semimetal core, and the separation between the nodes.
Marco Peluso, Alessandro De Martino, Reinhold Egger, Francesco Buccheri   +3 more
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Anisotropic resistance with a 90° twist in a ferromagnetic Weyl semimetal, Co₂MnGa. [PDF]

Nat Commun, 2023
Quirk NP, Cheng G, Manna K, Felser C, Yao N, Ong NP.   +5 more
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Topological spin-orbit torque in ferrimagnetic Weyl semimetal

Physical Review Research
We theoretically find a topological spin-orbit torque (SOT) in the compensated ferrimagnetic Weyl semimetal Ti_{2}MnAl. The topological SOT arises from all the occupied states, which is free from dissipation. However, it is negligible in metallic magnets
Tomonari Meguro, Akihiro Ozawa, Koji Kobayashi, Yasufumi Araki, Kentaro Nomura   +4 more
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Optical properties of Weyl semimetals [PDF]

National Science Review, 2018
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