中文
相关论文

相关论文: Chiral nodes and oscillations in the Josephson cur…

200 篇论文

The hydrodynamic flow of the chiral electron fluid in a Weyl semimetal slab of finite thickness is studied by using the consistent hydrodynamic theory. The latter includes viscous, anomalous, and vortical effects, as well as accounts for…

强关联电子 · 物理学 2018-05-23 E. V. Gorbar , V. A. Miransky , I. A. Shovkovy , P. O. Sukhachov

We consider magnetic Weyl semimetals. First of all we review relation of intrinsic anomalous Hall conductivity, band contribution to intrinsic magnetic moment, and the conductivity of chiral separation effect (CSE) to the topological…

介观与纳米尺度物理 · 物理学 2024-07-01 M. A. Zubkov

Weyl semimetals are characterized by unconventional electromagnetic response. We present analytical expressions for all components of the frequency- and wave-vector-dependent charge-spin linear-response tensor of Weyl fermions. The…

介观与纳米尺度物理 · 物理学 2019-02-06 Sayandip Ghosh , Carsten Timm

The ferromagnetic Weyl semimetals, such as Co3Sn2S2, feature pairs of Weyl points characterized by the opposite chiralities.We model this type of semimetals by the inversion symmetry protected and the time reversal symmetry broken Bloch…

介观与纳米尺度物理 · 物理学 2023-09-20 Udai Prakash Tyagi , Partha Goswami

We begin this review with an introduction and a discussion of Weyl fermions as emergent particles in condensed matter systems, and explain how high energy phenomena like the chiral anomaly can be seen in low energy experiments. We then…

介观与纳米尺度物理 · 物理学 2016-03-23 Sumathi Rao

Weyl semimetals are examples of a new class of topological states of matter which are gapless in the bulk with protected surface states. Their low energy sector is characterized by massless chiral fermions which are robust against…

强关联电子 · 物理学 2015-06-22 Michael Phillips , Vivek Aji

In the rapidly expanding field of topological materials there is growing interest in systems whose topological electronic band features can be induced or controlled by magnetism. Magnetic Weyl semimetals, which contain linear band crossings…

In Weyl semimetals with broken inversion and time-reversal symmetries, the Maxwell equations are modified by the presence of the axion terms $\mathbf{b} $ and $b_{0}$ where, in the simplest case of a two-node Weyl semimetal, $% 2\hslash…

介观与纳米尺度物理 · 物理学 2023-04-04 René Côté , Rémi N. Duchesne , Gautier D. Duchesne , Olivier Trépanier

Weyl semimetal is a new phase of matter that provides the first solid state realization of chiral Weyl fermions. Most of its unique physics is a consequence of chiral anomaly, namely nonconservation of the number of particles of a given…

介观与纳米尺度物理 · 物理学 2013-09-11 Y. Chen , Si Wu , A. A. Burkov

Weyl nodal loop semimetals are gapless topological phases that, unlike their insulator counterparts, may be unstable to small perturbations that respect their topology-protecting symmetries. Here, we analyze a clean system perturbed by…

无序系统与神经网络 · 物理学 2025-02-07 João S. Silva , Miguel Gonçalves , Eduardo V. Castro , Pedro Ribeiro , Miguel A. N. Araújo

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

In Weyl semimetals, charge density wave (CDW) order can spontaneously break the chiral symmetry, gap out the Weyl nodes, and drive the material into the axion insulating phase. Investigations have however been limited since CDWs are rarely…

The formation of two-band nodal points in gapless topological phases, referred to as conventional Weyl nodes, relies solely on translational symmetry. However, when coupled with other spatial and spatio-temporal symmetries, unconventional…

材料科学 · 物理学 2025-05-12 Siyu Chen , Robert-Jan Slager , Bartomeu Monserrat , Adrien Bouhon

Weyl fermions possess the property of spin-momentum locking: the expectation value of the spin is parallel or antiparallel to the momentum at any given point in the Brillouin zone in the vicinity of a Weyl node. This is a direct consequence…

介观与纳米尺度物理 · 物理学 2023-11-14 A. A. Burkov , Michael Smith , Alexander Hickey , Ivar Martin

Torsional strain in Weyl semimetals excites a unidirectional chiral density wave propagating in the direction of the torsional vector. This gapless excitation, named the chiral sound wave, is generated by a particular realization of the…

介观与纳米尺度物理 · 物理学 2020-12-24 Matteo Baggioli , Maxim N. Chernodub , Karl Landsteiner , Maria A. H. Vozmediano

Weyl semimetals are predicted to realize the three-dimensional axial anomaly first discussed in particle physics. The anomaly leads to unusual transport phenomena such as the chiral magnetic effect in which an applied magnetic field induces…

介观与纳米尺度物理 · 物理学 2016-11-23 Edwin Barnes , J. J. Heremans , Djordje Minic

Weyl semimetals are a new class of Dirac material that posses bulk energy nodes in three dimensions. In this paper, we study a Weyl semimetal subject to an applied magnetic field. We derive expressions for the density of states, electronic…

强关联电子 · 物理学 2014-04-30 Phillip E. C. Ashby , J. P. Carbotte

We present a theory of the anomalous Hall effect in a topological Weyl superconductor with broken time reversal symmetry. Specifically, we consider a ferromagnetic Weyl metal with two Weyl nodes of opposite chirality near the Fermi energy.…

超导电性 · 物理学 2016-08-24 G. Bednik , A. A. Zyuzin , A. A. Burkov

The recent discoveries of ferroelectric metal and Weyl semimetal (WSM) have stimulated a natural question: whether these two exotic states of matter can coexist in a single material or not. These two discoveries ensure us that physically it…

The chiral magnetic effect is a one of the exotic bulk transport properties of the Weyl semimetals. Because of the Nielsen-Ninomiya "no-go theorem", the total chiral magnetic current is absent in the equilibrium state. One of the mechanisms…

强关联电子 · 物理学 2020-01-08 Zaur Z. Alisultanov