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相关论文: Scaling the topological transport based on an effe…

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We demonstrate that topological transport phenomena, characteristic of Weyl semimetals, namely the semi-quantized anomalous Hall effect and the chiral magnetic effect (equilibrium magnetic-field-driven current), may be thought of as two…

介观与纳米尺度物理 · 物理学 2012-09-27 A. A. Zyuzin , A. A. Burkov

We analyze the effect of the tilt on the transverse thermoelectric coefficient of Weyl semimetals in the \emph{conformal} limit, i.e., zero temperature and zero chemical potential. Using the Kubo formalism, we find a nonmonotonic behavior…

介观与纳米尺度物理 · 物理学 2023-01-18 Thorvald M. Ballestad , Alberto Cortijo , María A. H. Vozmediano , Alireza Qaiumzadeh

In a recent paper [R. Soto-Garrido and E. Mu\~noz, J. Phys. Condens. Matter 30, 195302 (2018)], we studied the electronic transport properties in Weyl semimetals (WSMs) submitted to the combined effects of torsional mechanical strain and…

介观与纳米尺度物理 · 物理学 2018-12-07 Enrique Muñoz , Rodrigo Soto-Garrido

Weyl semimetals host linear energy dispersions around Weyl nodes, as well as monopoles of Berry curvature in momentum space around these points. These features give rise to unique transport signatures in a Weyl semimetal, such as transverse…

介观与纳米尺度物理 · 物理学 2019-06-19 Robert C. McKay , Timothy M. McCormick , Nandini Trivedi

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

It is at the heart of modern condensed matter physics to investigate the role of a topological structure in anomalous transport phenomena. In particular, chiral anomaly turns out to be the underlying mechanism for the negative longitudinal…

无序系统与神经网络 · 物理学 2016-08-17 Kyoung-Min Kim , Dongwoo Shin , M. Sasaki , Heon-Jung Kim , Jeehoon Kim , Ki-Seok Kim

$\mathsf{Mn_{3}Sn}$ has recently attracted considerable attention as a magnetic Weyl semimetal exhibiting concomitant transport anomalies at room temperature. The topology of the electronic bands, their relation to the magnetic ground state…

We study the thermoelectric properties of a double-Weyl fermion system, possibly realized in $\mathrm{HgCr_2Se_4}$ and $\mathrm{SrSi_2}$, by a semi-classical Boltzmann transport theory. We investigate different relaxation processes…

强关联电子 · 物理学 2016-04-20 Qi Chen , Gregory A. Fiete

The potential application of topological superconductivity in quantum transport and quantum information has fueled an intense investigation of hybrid materials with emergent electronic properties, including magnet-superconductor…

Weyl semimetals (WSM) have been extensively studied due to their exotic properties such as topological surface states and anomalous transport phenomena. Their band structure topology is usually predetermined by material parameters and can…

The recent discovery of magnetic Weyl semimetal Co3Sn2S2 opens up new avenues for research into the interactions between topological orders, magnetism, and electronic correlations. Motivated by the observations of large anomalous Hall…

介观与纳米尺度物理 · 物理学 2022-12-21 Abhirup Roy Karmakar , S. Nandy , A. Taraphder , G. P. Das

Magnetotransport provides key experimental signatures in Weyl semimetals. The longitudinal magnetoresistance is linked to the chiral anomaly and the transversal magnetoresistance to the dominant charge relaxation mechanism. Axial magnetic…

介观与纳米尺度物理 · 物理学 2020-04-20 Jan Behrends , Roni Ilan , Jens H. Bardarson

The discovery of topological quantum materials represents a striking innovation in modern condensed matter physics with remarkable fundamental and technological implications. Their classification has been recently extended to topological…

In disordered Weyl semimetals, mechanisms of topological origin lead to novel mechanisms of transport, which manifest themselves in unconventional types of electromagnetic response. Prominent examples of transport phenomena particular to…

介观与纳米尺度物理 · 物理学 2016-02-10 Alexander Altland , Dmitry Bagrets

Characterized by the absence of inversion symmetry, non-centrosymmetric materials are of great interest because they exhibit ferroelectricity, second harmonic generation, emergent Weyl fermions, and other fascinating phenomena. It is…

Topological Weyl semimetals represent a novel class of quantum materials that exhibit remarkable properties arising from their unique electronic structure. In this work, we employ state-of-the-art ab initio methods to investigate the role…

材料科学 · 物理学 2025-12-05 Zhe Liu , Shashi B. Mishra , Jae-Mo Lihm , Samuel Poncé , Elena R. Margine

Weyl semimetals, with their unique electronic band structure, have drawn significant interest for their potential to explore quantum anomalies in condensed matter systems. In this study, we investigate the large positive magneto-thermal…

The interplay between strong electron correlation and band topology is at the forefront of condensed matter research. As a direct consequence of correlation, magnetism enriches topological phases and also has promising functional…

Weyl semimetals (WSMs) are three-dimensional topological materials that exhibit fascinating properties due to the presence of Weyl nodes in their band structure. However, existing WSMs discovered so far often possess multiple pairs of Weyl…

As exemplified by the growing interest in the quantum anomalous Hall effect, the research on topology as an organizing principle of quantum matter is greatly enriched from the interplay with magnetism. In this vein, we present a combined…

强关联电子 · 物理学 2021-02-24 Y. Xu , L. Das , J. Z. Ma , C. J. Yi , S. M. Nie , Y. G. Shi , A. Tiwari , S. S. Tsirkin , T. Neupert , M. Medarde , M. Shi , J. Chang , T. Shang