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We investigate the electric current response to axial gauge fields in noncentrosymmetric magnetic Weyl semimetals. The absence of both time-reversal and inversion symmetries allows for new types of responses. We systematically calculate the…

介观与纳米尺度物理 · 物理学 2025-09-09 Long Liang

The magnetic textures of Weyl semimetals are embedded into their topological structure and interact dynamically with it. Here, we examine electric field-induced structural phase transitions in domain walls mediated by the spin transfer…

材料科学 · 物理学 2023-07-20 Shiva Heidari , Reza Asgari , Dimitrie Culcer

In this work we study the effects of in-plane magnetic fields on thin films of the Dirac Semimetal (DSM) \ce{Na2Bi} where one of the in-plane directions is perpendicular to the $k$-separation between the two Weyl points for each spin…

介观与纳米尺度物理 · 物理学 2016-11-09 Zhuo Bin Siu , Mansoor B. A. Jalil , Seng Ghee Tan

We report the topological electronic structure, magnetic, and magnetotransport properties of a noncentrosymmetric compound GdAlSi. Magnetic susceptibility shows an antiferromagnetic transition at $T_\mathrm{N}$ = 32 K. In-plane isothermal…

A Weyl semimetal (WSM)\ is a three-dimensional topological phase of matter where pairs of nondegenerate bands cross at isolated points in the Brillouin zone called Weyl nodes. Near these points, the electronic dispersion is gapless and…

介观与纳米尺度物理 · 物理学 2021-10-20 Samuel Vadnais , Rene Cote

The chiral plasmon modes of relativistic matter in background magnetic and strain-induced pseudomagnetic fields are studied in detail using the consistent chiral kinetic theory. The results reveal a number of anomalous features of these…

介观与纳米尺度物理 · 物理学 2017-03-27 E. V. Gorbar , V. A. Miransky , I. A. Shovkovy , P. O. Sukhachov

Weyl semimetals are gapless quasi-topological materials with a set of isolated nodal points forming their Fermi surface. They manifest their quasi-topological character in a series of topological electromagnetic responses including the…

介观与纳米尺度物理 · 物理学 2016-02-05 Hassan Shapourian , Taylor L. Hughes

In this study, we investigate the localized surface plasmon modes of a sub-wavelength spherical nanoparticle composed of a Weyl semimetal, taking into account the axion modification of electrodynamics. We derive analytical solutions for…

介观与纳米尺度物理 · 物理学 2025-09-03 Francesco M. D. Pellegrino , Francesco Buccheri , G. G. N. Angilella

We theoretically study electrical responses of magnetization in Weyl semimetals. The Weyl semimetal is a new class of topological semimetals, possessing hedgehog type spin textures in momentum space. Because of this peculiar spin texture,…

介观与纳米尺度物理 · 物理学 2021-12-07 Daichi Kurebayashi , Kentaro Nomura

We report the thermal and electrical conductivity data for the magnetic Weyl semimetal SmAlSi measured in a magnetic field (B) with two different orientations. In one case, B was applied perpendicular to the heat or charge current, in the…

强关联电子 · 物理学 2025-01-24 Mujeeb Ahmad , Md Shahin Alam , Xiaohan Yao , Fazel Tafti , Marcin Matusiak

We give a review of theoretical and experimental results concerning the magnetic susceptibility of the Weyl, Dirac, and nodal-line semimetals. In particular, dependences of the susceptibility on the chemical potential, temperature, and…

介观与纳米尺度物理 · 物理学 2019-10-28 G. P. Mikitik , Yu. V. Sharlai

Magnetotransport and magneto-optics experiments offer a very powerful probe for studying the physical properties of materials. Here, we investigate the second-order nonlinear magnetoconductivity of tilted type-I Weyl and multi-Weyl…

介观与纳米尺度物理 · 物理学 2022-06-22 Sunit Das , Kamal Das , Amit Agarwal

We investigate the phonon magnetochiral effect (PMCE) in chiral Weyl semimetals by deriving the nonreciprocal dispersion relations of both acoustic and non-polar optical phonons in the presence of a magnetic field. Using a semiclassical…

介观与纳米尺度物理 · 物理学 2025-12-01 Sanghita Sengupta

The recent discovery of Weyl fermions in solids enables exploitation of relativistic physics and development of a spectrum of intriguing physical phenomena. They are constituted of pairs of Weyl points with two-fold band degeneracy, which…

Weyl semimetals (WSMs) have Weyl nodes where conduction and valence bands meet in the absence of inversion or time-reversal symmetry (TRS), or both. Interesting phenomena are expected in WSMs such as the chiral magnetic effect, anomalous…

介观与纳米尺度物理 · 物理学 2018-08-22 John W. Villanova , Kyungwha Park

We provide a review of recent experimental results on the chiral anomaly in Dirac/Weyl semimetals. After a brief introduction, we trace the steps leading to the prediction of materials that feature protected 3D bulk Dirac nodes. The chiral…

强关联电子 · 物理学 2021-10-29 N. P. Ong , Sihang Liang

In the presence of parallel electric and magnetic fields, the violation of separate number conservation laws for the three dimensional left and right handed Weyl fermions is known as the chiral anomaly. The recent discovery of Weyl and…

介观与纳米尺度物理 · 物理学 2024-02-20 Gargee Sharma , Pallab Goswami , Sumanta Tewari

Surface plasmon polaritons in a strained slab of a Weyl semimetal with broken time-reversal symmetry are investigated. It is found that the strain-induced axial gauge field reduces frequencies of these collective modes for intermediate…

介观与纳米尺度物理 · 物理学 2020-09-01 O. V. Bugaiko , E. V. Gorbar , P. O. Sukhachov

It is proposed that strain-induced pseudomagnetic fields in Dirac and Weyl materials could be used as valley and chirality sensitive lenses for beams of Weyl quasiparticles. The study of the (pseudo-)magnetic lenses is performed by using…

介观与纳米尺度物理 · 物理学 2017-07-26 E. V. Gorbar , V. A. Miransky , I. A. Shovkovy , P. O. Sukhachov

In this work, we propose a geometric nonlinear current response induced by magnetic resonance in magnetic Weyl semimetals. This phenomenon is in analog to the quantized circular photogalvanic effect previously proposed for Weyl semimetal…

介观与纳米尺度物理 · 物理学 2024-10-28 Ruobing Mei , Chao-Xing Liu