Topological and superconducting properties of two-dimensional MXC<sub>3</sub> [M:X = In:As, Se:As, In:Te and As:Te] by first-principles study
Topological superconductivity is a fascinating quantum property in the field of condensed matter physics. The exploration of topological superconductivity in two-dimensional (2D) materials has become one of the current hot topics. Based on first-principles calculations, we predict that 2D MXC<sub>3</sub> materials (M:X = In:As, Se:As, In:Te and As:Te) are thermodynamically and dynamically stable. InAsC<sub>3</sub>, SeAsC<sub>3</sub> and InTeC<sub>3</sub> possess topologically non-trivial metallic properties. More interestingly, all of these materials are revealed to be phonon-mediated superconductors, with InAsC<sub>3</sub> and SeAsC<sub>3</sub> exhibiting a higher critical temperature (<i>T</i><sub>c</sub>) of 33.6 and 17 K, respectively. The <i>T</i><sub>c</sub> of InAsC<sub>3</sub> and SeAsC<sub>3</sub> is higher than those of most structures with both topological and superconductivity properties. The discovery of 2D MXC<sub>3</sub> provides a new platform for exploring 2D topological superconductors.
Authors
- Hong‐Yan Lu (ORCID: https://orcid.org/0000-0003-4715-7489)
- Shu‐Xiang Qiao (ORCID: https://orcid.org/0009-0008-7092-3333)
- Hao Ding (ORCID: https://orcid.org/0000-0001-8881-3193)
- Kaiyue Jiang (ORCID: https://orcid.org/0009-0007-0395-9662)
- Chang-Hao Sui
- Jie Zhang (ORCID: https://orcid.org/0000-0001-7528-4077)
- Na Jiao (ORCID: https://orcid.org/0000-0003-2732-7209)
- Ping Zhang (ORCID: https://orcid.org/0000-0002-8500-8727)
Institutions
- Qufu Normal University (CN)
- Institute of Applied Physics and Computational Mathematics (CN)
Publication Details
- Journal
- Physical Chemistry Chemical Physics
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5cp01206f
- Primary Topic
- Iron-based superconductors research
- Type
- article
- Field-Weighted Citation Impact
- 0.00