{ "id": "2401.06282", "version": "v1", "published": "2024-01-11T22:40:24.000Z", "updated": "2024-01-11T22:40:24.000Z", "title": "Magnetic control of Weyl nodes and wave packets in three-dimensional warped semimetals", "authors": [ "Bruno Focassio", "Gabriel R. Schleder", "Adalberto Fazzio", "Rodrigo B. Capaz", "Pedro V. Lopes", "Jaime Ferreira", "Carsten Enderlein", "Marcello B. Silva Neto" ], "comment": "6 pages, 5 figures", "categories": [ "cond-mat.mes-hall", "cond-mat.str-el", "hep-th" ], "abstract": "We investigate the topological phase transitions driven by band warping and a transverse magnetic field, for three-dimensional Weyl semimetals. First, we use the Chern number as a mathematical tool to derive the topological phase diagram. Next, we associate each of the topological sectors to a given angular momentum state of a rotating wave packet. Then we show how the position of the Weyl nodes can be manipulated by a transverse external magnetic field that ultimately quenches the wave packet rotation, first partially and then completely, thus resulting in a sequence of field-induced topological phase transitions. Finally, we calculate the current-induced magnetization and the anomalous Hall conductivity of a prototypical warped Weyl material. Both observables reflect the topological transitions associated with the wave packet rotation and can help to identify the elusive 3D quantum anomalous Hall effect in three-dimensional, warped Weyl materials.", "revisions": [ { "version": "v1", "updated": "2024-01-11T22:40:24.000Z" } ], "analyses": { "keywords": [ "three-dimensional warped semimetals", "weyl nodes", "magnetic control", "wave packet rotation", "topological phase transitions" ], "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable" } } }