2021/02/28 by Anirudha Menon, Souvik Chattopadhay, Banasri Basu
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Band gap #Berry connection and curvature #Condensed matter physics #Curvature #Geometric phase #Geometry #Graphene research and applications #Lattice (music) #Lorentz transformation #Magnetic monopole #Observable #Phase transition #Physics #Quantum mechanics #Semimetal #Topological Materials and Phenomena #Weyl semimetal #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.104.075129
published as Phys. Rev. B 104, 075129 (2021) · 6 pages and 6 figures in the original version. 13 pages, 12 figures in the revised version
arxiv created 2021/08/17 · openalex publication_date 2021/08/17 · arxiv updated 2021/08/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
We study the chiral magnetic effect (CME) in tilted multi-Weyl semimetals (mWSMs) employing a two-band lattice model. We focus on the type-II phase of mWSMs, introduced by incorporating a Lorentz symmetry violating tilt term. Our work adds to the current understanding of the CME (and also the anomalous Hall effect) in the type-II phase of mWSMs and near the Lifshitz transition by varying tilt. Like the elementary Weyl semimetal case, our results also indicate that the Berry curvature drives the CME for higher monopole charges. We find a peak in the CME at the transition point and discuss its significance using the density of states. Along the way we also examine both observables as a function of the energy separation of the Weyl points.