https://doi.org/10.1140/epjb/s10051-025-00969-4
Regular Article - Solid State and Materials
Magnetotransport of Cd3As2 thin films under a tilted magnetic field
School of Science, Jiangnan University, 214122, Wuxi, China
Received:
28
January
2025
Accepted:
20
May
2025
Published online:
12
June
2025
The bulk Cd3As2 is a prototype Dirac semimetal and its thin films have been successfully fabricated in recent experiments. The subsequent magnetotransport studies revealed several exotic topological phases, such as two-dimensional (2D) topological insulator phase and 2D Weyl semimetal phase. Here, we make a theoretical study on the magnetotransport properties of Cd3As2 thin films under a tilted magnetic field. Within the effective 
model describing the low-energy excitations in Cd3As2, we find that when the out-of-plane magnetic field component is small, each 
LLs own the twofold degeneracy, and the Hall plateau shows the odd-integer sequence; when the out-of-plane component increases, the LL spacings get enlarged, which breaks the twofold degeneracy of the LLs and leads to the integer sequence of the Hall plateaus. Therefore, our work could capture the main physics underlying the tilt angle-driven Hall plateau transitions that are observed in the experiment.
Supplementary Information The online version contains supplementary material available at https://doi.org/10.1140/epjb/s10051-025-00969-4.
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Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
