Author:
Dantas Renato M. A.,Peña-Benitez Francisco,Roy Bitan,Surówka Piotr
Abstract
Abstract
We study the longitudinal magnetotransport in three-dimensional multi-Weyl semimetals, constituted by a pair of (anti)-monopole of arbitrary integer charge (n), with n = 1,2 and 3 in a crystalline environment. For any n > 1, even though the distribution of the underlying Berry curvature is anisotropic, the corresponding intrinsic component of the longitudinal magnetoconductivity (LMC), bearing the signature of the chiral anomaly, is insensitive to the direction of the external magnetic field (B) and increases as B
2, at least when it is sufficiently weak (the semi-classical regime). In addition, the LMC scales as n
3 with the monopole charge. We demonstrate these outcomes for two distinct scenarios, namely when inter-particle collisions in the Weyl medium are effectively described by (a) a single and (b) two (corresponding to inter- and intra-valley) scattering times. While in the former situation the contribution to LMC from chiral anomaly is inseparable from the non-anomalous ones, these two contributions are characterized by different time scales in the later construction. Specifically for sufficiently large inter-valley scattering time the LMC is dominated by the anomalous contribution, arising from the chiral anomaly. The predicted scaling of LMC and the signature of chiral anomaly can be observed in recently proposed candidate materials, accommodating multi-Weyl semimetals in various solid state compounds.
Publisher
Springer Science and Business Media LLC
Subject
Nuclear and High Energy Physics
Reference78 articles.
1. A. Vilenkin, Macroscopic parity violating effects: neutrino fluxes from rotating black holes and in rotating thermal radiation, Phys. Rev.
D 20 (1979) 1807 [INSPIRE].
2. A. Vilenkin, Equilibrium parity violating current in a magnetic field, Phys. Rev.
D 22 (1980) 3080 [INSPIRE].
3. K. Fukushima, D.E. Kharzeev and H.J. Warringa, The chiral magnetic effect, Phys. Rev.
D 78 (2008) 074033 [arXiv:0808.3382] [INSPIRE].
4. J. Erdmenger, M. Haack, M. Kaminski and A. Yarom, Fluid dynamics of R-charged black holes, JHEP
01 (2009) 055 [arXiv:0809.2488] [INSPIRE].
5. N. Banerjee et al., Hydrodynamics from charged black branes, JHEP
01 (2011) 094 [arXiv:0809.2596] [INSPIRE].
Cited by
44 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献