{ "id": "2201.10880", "version": "v1", "published": "2022-01-26T11:32:45.000Z", "updated": "2022-01-26T11:32:45.000Z", "title": "Non-adiabatic corrections to a chiral anomaly in topological nodal semimetals", "authors": [ "Matej Badin" ], "comment": "10 pages including Appendices, 13 figures", "categories": [ "cond-mat.mes-hall" ], "abstract": "Studying many-body versions of Landau-Zener-like problem of non-interacting yet entangled electrons for several $k \\cdot p$ models representing Weyl and Dirac semimetals, we systematically include non-adiabatic corrections to the quantum limit of the interband channel of conductivity connected to the chiral anomaly. Our study shows that a relative homotopy invariant [Sun, X. et al., Phys. Rev. Lett. 121, 106402 (2018)] and Euler class invariant [Bouhon, A. et al., Nat. Phys. 16, 1137-1143 (2020)] manifest in this conductivity channel. Moreover, we show that for non-symmorphic systems this contribution is sensitive to the direction of the applied magnetic field which suggests that the conjectured direction-selective chiral anomaly in non-symmorphic systems [Bzdu\\v{s}ek, T. et al., Nature 538, 75-78 (2016)] could lead to a strongly anisotropic longitudinal magnetoresistance. The presented approach can be easily applied to other $k \\cdot p$ or tight-binding models.", "revisions": [ { "version": "v1", "updated": "2022-01-26T11:32:45.000Z" } ], "analyses": { "keywords": [ "topological nodal semimetals", "non-adiabatic corrections", "chiral anomaly", "non-symmorphic systems", "strongly anisotropic longitudinal magnetoresistance" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable" } } }