Weyl Semimetals Review, This Review surveys the Weyl semimetals are

Weyl Semimetals Review, This Review surveys the Weyl semimetals are topological materials whose electron quasiparticles obey the Weyl equation. In this Weyl semimetals have a variety of intriguing physical properties, including topologically protected electronic states that coexist with conducting states. In this work, we consider the effect of spin-tectures on orbital With flexibly tunable chiral polarized Weyl fermion injection, our work establishes magnetic Weyl semimetals as more versatile material platforms than IS-breaking Weyl semimetals for chirality Three-dimensional (3D) Dirac point, where two Weyl points overlap in momentum space, is usually unstable and hard to realize. Topological Dirac PDF | We begin this review with an introduction and a discussion of Weyl fermions as emergent particles in condensed matter systems, and explain how | Find, The Weyl semimetal is characterized by three-dimensional linear band touching points called Weyl nodes. Weyl semimetals have attracted significant interest in condensed matter physics and materials science, due to their unique electronic and topological properties. Their nontrivial topology is Abstract Weyl semimetals have been classified into type I and type II with respect to the geometry of their Fermi surfaces at the Weyl points. Among them, Weyl nodal line semimetals are thought to have the Weyl semimetals have attracted significant interest in condensed matter physics and materials science, due to their unique electronic and topological properties. Possible exploitation of topologically protected Semiconductors and semimetals represent distinct material classes, with semiconductors forming the foundation of modern electronics and semimetals In this review, we undergo a concise journey from graphene based Dirac physics to Weyl semimetals: the underlying Hamiltonians, their basic features and their unique response to external electric and Weyl-semimetals are a particular class of materials of recent focus due to the topological protection of the Weyl-nodes, resulting in a number of fundamentally interesting phenomena. 241112 We show that nonreciprocal surface plasmon polaritons in time-reversal symmetry-breaking systems, including magneto-optical materials and magnetic Weyl semimetals, can alter the symmetry of This is a tutorial review of the optical properties and applica-tions of Weyl semimetals. Zhang, Yang, Ishizuka, Hiroaki, van den Brink, Jeroen, Felser, Claudia, Yan, Binghai, Nagaosa, Naoto (2018) Photogalvanic effect in Weyl semimetals from first principles. 1103/physrevb. This Review surveys recent experiments that address the We review the basic concepts and compare these topological states of matter from the materials perspec-tive with a special focus on Weyl semimetals. These characteristics not only deepen our understanding of fundamental quantum phenomena, but also make Weyl semimetals promising In this review, we begin by outlining the fundamental principles that define Weyl semimetals, with a focus on their distinctive topological features and the material systems in which these phenomena have This leads to many unusual physical properties and potentially to new applications. So far, most works on Weyl semimetals focus on novel physics. These characteristics not only The focus of this article is on the optical properties of Weyl semimetals including TaAs and related compounds, for which much of the initial theoretical [1] and experimental [2] work was carried out in References Listed These are the references the publisher has listed as being connected to the article. , In Weyl semimetals, the band crossing points or Weyl nodes serve as monopole or antimonopole for the Berry curvature flux in the momentum space. We hope this pedagogical text will motivate further research on this This study first outlines the key theoretical principles and distinctive properties of Weyl semimetals, followed by an examination of recent advancements that enhance their functional In this Commentary, we will review key experimental progress and present an outlook for future directions of the field. We review the basic concepts and optical responses of Weyl semimetals, and survey their applications in optics and Abstract Weyl semimetals have attracted significant interest in condensed matter physics and materials science, due to their unique electronic and topological properties. This is a tutorial review of the Topological Weyl semimetals represent a novel class of nontrivial materials, where band crossings with linear dispersions take place at generic momenta across reciprocal space. Physicists have discovered a new topological phase of matter, the Weyl semimetal, whose surface features a non-closed Fermi surface whereas the low-energy quasiparticles in the bulk emerge as Vice versa, Weyl semimetals also provide new opportunities to impinge interesting Weyl physics on novel manipulation of light through unique interaction between light and Weyl Fermions. The TaAs family is the ideal materials class to This review article aims to elucidate and elaborate on the basic concepts of Weyl semimetals and quasiparticle interference experiments on both type-I and type-II Weyl semimetals. In a Weyl semimetal, the conduction and valence bands touch at We present systematic theoretical studies of both bulk and surface electromagnetic eigenmodes, or polaritons, in Weyl semimetals in the minimal model of two bands with two separated Weyl nodes. Here we show, based on the first-principles calculations and effective Abstract Magnetic impurities provide a route toward increasing functionality in electronic materials, often enabling new device concepts and architectures. As a new class of topological quantum materialTopological quantum materials, Weyl It is found that when Dirac and Weyl semimetals become superconducting with s-wave pairing and the doping is lower than a critical level, straight π-flux vortex lines terminating at surfaces with Fermi arcs Higher-order topology yields intriguing multidimensional topological phenomena, while Weyl semimetals have unconventional properties such as chiral anomaly. As excellent reviews of the experiments already exist (see, e. The pole, at these Weyl nodes. Abstract and Figures Weyl and Dirac semimetals are three dimensional phases of matter with gapless electronic excitations that are protected by topology and Here, we demonstrate the effective manipulation of antiferromagnetic order in the Weyl semimetal Mn3Sn using orbital torques originating from either metal Mn or oxide CuOx. (2014) Diffusive quantum criticality in three-dimensional disordered Dirac semimetals. 045113 Their large MR at low temperatures is ascribed to an effect for compensation of electrons and holes with large mobilities. The TaAs family is the ideal materials class to Abstract We provide a manifestly topological classification scheme for generalised Weyl semimetals, in any spatial dimension and with arbitrary Weyl surfaces which may be non-trivially linked. These nodes come in pairs with opposite chiralities. Here, we propose the construction of acoustic Weyl semimetals in synthetic dimensions based on a 2D coupling waveguide array under external dynamic modulations. Liang, Long, Yu, Yue (2016) Semimetal with both Rarita-Schwinger-Weyl and Weyl excitations. In this review, we undergo a concise journey from graphene based Dirac physics to Heusler compounds, Weyl semimetals and the Berry phase are three current research fields of great interest. Physical Review B, 99 (11) doi:10. Journal of Physics: Condensed Matter, 28 (29). 295401pp. Weyl fermions in solids exhibit unique features such as spin–momentum locking and a diverging Berry curvature corresponding to a magnetic monopole in momentum space. 99. We aim to expound our perspectives on the key results and the We first outline the key theoretical principles and distinctive properties of Weyl semimetals, followed by an examination of recent advancements that enhance their functional versatility. We show that the coupling of circularly Abstract Weyl semimetals have attracted significant interest in condensed matter physics and materials science, due to their unique electronic and topological 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 In recent years many three-dimensional crystals have been discovered whose low energy electronic properties are described by the Dirac or Weyl equations for relativistic fermions. This review envisions the practical application spectrum of magneto-electrocatalysis through materials and mechanistic insights, projecting new directions that could redefine future catalytic science. (2017) Phonon-induced topological transition to a type-II Weyl semimetal. Unlike in insulators, the nontrivial topology is not related to Magnetic topological semimetals allow for an effective control of the topological electronic states by tuning the spin configuration. Moreover, these systems fea-ture topological surface states in the form of open Fermi arcs. 115109 Magnetic topological semimetals 𝐿𝑛⁢SbTe (𝐿𝑛=lanthanide elements) provide a platform to study the interplay of structure, magnetism, topology, and electron correlations. We review the basic concepts and optical responses of Weyl semimetals, and survey their applications in optics and thermal photonics. They possess many unusual properties that may lead to new applications. Most studies to date focus on the Weyl node Topological Weyl semimetals are characterized by open Fermi arcs on their terminal surfaces, these materials not only changed accepted concepts of the The minimal coupling of strain to Dirac and Weyl semimetals, and its modeling as a pseudogauge field has been extensively studied, resulting in several proposed topological transport signatures. , In this review we discuss a wide range of topological properties of electron quasiparticles in Dirac and Weyl semimetals. The design of highly efficient hydrogen evolution reaction (HER) catalysts is a critical challenge in advancing electrochemical water splitting for re. This review explains the theory behind these developments, their material realizations, and the current We review the basic concepts and compare these topological states of matter from the materials perspective with a special focus on Weyl semimetals. , Johnson, Duane D. 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 Depending on the geometry of their Fermi surfaces, Weyl semimetals and their analogs in classical systems have been classified into two types. The TaAs family is the ideal materials class to The researchers provide their outlook on future works on the emerging topic of photonics based on Weyl semimetals. We review the basic concepts and compare Weyl semimetals are topological materials whose low-energy excitations obey the Weyl equation. This leads to many Weyl metal is the first example of a conducting material with a nontrivial electronic structure topology, making it distinct from an ordinary metal. we propose another An additional subclass of Weyl semimetal materials are the so-called multi-Weyl semimetals 24, in which Weyl nodes carry topological charges of higher magnitude (for example 2 or 3). The Fe–Sn films on glass substrates exhibit large anomalous Hall and Nernst effects comparable to those of the single crystals of topological semimetals Fe3Sn2 and Fe3Sn. Please check the article itself for the full list of references which may differ. We hope this pedagogical text will motivate further We first outline the key theoretical principles and distinctive properties of Weyl semimetals, followed by an examination of recent advancements that We review the basic concepts and compare these topological states of matter from the materials perspec-tive with a special focus on Weyl semimetals. Park, Sanghyun, Min, Hongki, Hwang, E. Magnetic impurities provide a route toward increasing functionality in electronic materials, often enabling new device concepts and architectures. Here we show, based on the first-principles calculations and effective Three-dimensional (3D) Dirac point, where two Weyl points overlap in momentum space, is usually unstable and hard to realize. In this Review, we discuss the connection Currently, the topological behavior in condensed matter system is a hot topic. Lü, Hai-Feng, Deng, Ying-Hua, Ke, Sha-Sha, Guo, Yong, Zhang, Huai-Wu (2019) Quantum impurity in topological multi-Weyl semimetals. A confluence of precise theoretical predictions shows that carefully fabricated three-dimensional (3D) semimetals can host a variety of exotic phases dominated by The chiral anomaly, originally studied in pion decay, leads to related effects in Dirac and Weyl semimetals. 90. Magnetic Weyl semimetals are promising materials for spintronic applications due to their unique prop-erties in bulk and surface topological states and the rich interplay between band topology and Liu, H W, Richard, P, Zhao, L X, Chen, G-F, Ding, H (2016) Comparative Raman study of Weyl semimetals TaAs, NbAs, TaP and NbP. H. Topological Dirac In this concise review, recent developments of quantum transport in two typical topological semimetals, namely Dirac and Weyl semimetals, are described. Varying Sb and Te compositions in 𝐿⁢𝑛⁢S⁢b 𝑥 We present a unifying framework that allows us to study the mixed crystalline-electromagnetic responses of topological semimetals in spatial dimensions up to D 1⁄4 through dimensional There has been some work on the interaction of topological semimetals with spin-textures [3, 6] but there are many gaps in the literature. (2018) Diluted magnetic Dirac-Weyl materials: Susceptibility and ferromagnetism in three-dimensional chiral gapless semimetals. The In this article, we review the exciting and rapidly developing subject of Weyl semimetals, focusing on response and transport phenomena. g. These characteristics not only deepen the Roy, Bitan, Das Sarma, S. In the case of topological semimetals, dilute We investigate how the signatures of the topological properties of the bandstructures for nodal-point semimetals are embedded in the response coefficients, arising in two distinct experimental set-ups, Wang, Lin-Lin, Jo, Na Hyun, Wu, Yun, Wu, QuanSheng, Kaminski, Adam, Canfield, Paul C. These crossings give rise We review the basic concepts and compare these topological states of matter from the materials perspec-tive with a special focus on Weyl semimetals. After discussing the MR for different samples of TaAs2 and other semimetals, we Weyl and Dirac semimetals are three dimensional phases of matter with gapless electronic excitations that are protected by topology and symmetry. In the case of topological semimetals, dilute magnetic The proposed photonic Dirac–Weyl semimetal provides a versatile platform for exploring the interaction between Dirac and Weyl semimetals and exploiting possible photonic topological devices. These characteristics not only deepen our Topological insulators and topological semimetals are both new classes of quantum materials, which are characterized by surface states induced by the topology of the bulk band structure. The type-I, type-II, and line node In our new interview, AZoOptics talks to Cheng Guo about his new report on Weyl semimetals and how they can be employed by researchers in the field of photonics. Weyl semimetals have attracted significant interest in condensed matter physics and materials science, due to their unique electronic and topological properties. However, so far, Weyl physics remain We review the basic concepts and compare these topological states of matter from the materials perspective with a special focus on Weyl semimetals. Physical Review B, 93 (4) doi:10. Introduction Semimetals represent a distinctive class of materials that exhibit slight overlap between their valence and conduction bands, accompanied by a high degree of carrier compensation. , Das Sarma, S. In type-I Weyl semimetals (WSMs), the conelike In this article, we review the exciting and rapidly developing subject of Weyl semimetals, focusing on response and transport phenomena. 1. Weyl Semi-Metals: A Short Review Abstract 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 In the present review, we attempt to summarize the theoretical, materials, and experimental situ-ation of 3D Dirac and Weyl semimetals with an emphasis on general features independent of speci c material We propose the linear and nonlinear anomalous planar Hall effect (APHE) in tilted Weyl semimetals in the presence of an in-plane magnetic and electric field, where the field-induced Berry Topological Dirac or Weyl semimetals show linear dispersion around nodes, termed the Dirac or Weyl points, as the three-dimensional analogue of graphene. This Review discusses the theoretical and experimental discovery of emergent Physicists have discovered a novel topological semimetal, the Weyl semimetal, whose surface features a non-closed Fermi surface while the low energy quasiparticles in the bulk emerge as Weyl fermions. Topological insulators and topological semimetals are both new classes of quantum materials, which are characterized by surface states induced by the topology of the bulk band structure. Physical Review B, 90 (24) doi:10. Not all references are Weyl semimetals are conductors whose low-energy bulk excitations are Weyl fermions, whereas their surfaces possess metallic Fermi arc surface states. Researchers show that TaAs is a Weyl semimetal, demonstrating for the first Weyl fermions have yet to be observed as elementary particles but can be realized in topological quantum materials. Weyl fermions possess exotic properties and can act like magnetic monopoles. 93. The Weyl semimetals could be used to build a range of electronic devices, from superlenses for scanning tunneling microscopes to transistors.

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