Topological and nodal superconductor kagome magnesium triboride

An, Yipeng; Chen, Juncai; Wang, Zhengxuan; Li, Jie; Gong, Shi-Jing; Ma, Chunlan; Wang, Tianxing; Jiao, Zhaoyong; Wu, Ruqian; Hu, Jiangping; Liu, W. M.

doi:10.1103/physrevmaterials.7.014205

Cited by 3 publications

(1 citation statement)

References 83 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We further investigated the superconducting characteristics of these compounds by a recently developed method known as symmetry indicators (SIs). , This method offers an effective approach to analyze topological properties through the checking of irreducible representations (Irreps) of specific space groups and has been extended to incorporate the investigation on superconductors. − That is, superconductors with pairings that belong to one-dimensional nontrivial representations of point groups are revealed as topological or nodal superconductor candidates. Although the paring symmetry of a superconductor cannot be accurately predicted without experimental data, this may contribute to a better understanding of the pairing mechanism and facilitate the realization of Majorana Fermions when combining the SI results with the experimental data …”

Section: Resultsmentioning

confidence: 99%

High-Throughput Computational Screening and Design of CaPtAs-like Equiatomic Ternary Noncentrosymmetric Superconductors

Song,

Qin,

Shi

et al. 2023

J. Phys. Chem. C

View full text Add to dashboard Cite

Noncentrosymmetric superconductors (NCSs) are promising candidates for investigating spontaneous time-reversal symmetry breaking and topological superconductivity. This study aims to present a computational materials discovery and design process for developing CaPtAs-like NCSs. Through a comprehensive screening based on first-principles calculations, the range of CaPtAs-like materials is expanded to 13 compounds with superior stabilities, thereby indicating a high likelihood of synthesis. Based on the symmetry indicators diagnosis, SrPtAs, NaPtSi, and SrPtP were screened out as good candidates for investigating nodal superconductivity. Moreover, KPtP, CaRhAs, and CaPtSi were proposed as possible topological superconductor candidates. This investigation serves to aid in the design and expansion of the viable phase space for CaPtAs-like NCSs, and this screening framework may be extended to other NCS systems.

show abstract