Topological hybrid semimetal phases and anomalous Hall effects in a three dimensional magnetic topological insulator
- 12 October 2021
- journal article
- research article
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 34 (2), 025502
- https://doi.org/10.1088/1361-648x/ac2ed7
Abstract
In this work, we propose a ferromagnetic Bi2Se3 as a candidate to hold the coexistence of Weyland nodal-line semimetal phases, which breaks the time reversal symmetry. We demonstrate that the type-I Weyl semimetal phase, type-I-, type-II- and their hybrid nodal-line semimetal phases can arise by tuning the Zeeman exchange field strength and the Fermi velocity. Their topological responses under U(1) gauge field are also discussed. Our results raise a new way for realizing Weyl and nodal-line semimetals and will be helpful in understanding the topological transport phenomena in three-dimensional material systems.Keywords
Funding Information
- National Natural Science Foundation of China (11804070)
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