Sixfold, fourfold, and threefold excitations in the rare-earth metal carbide 
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Topological electrides have attracted extensive attention in various fields, for example, electrocatalysis, spintronics, electron emitters, etc., due to their non-trivial topological surface states and unique electronic properties. It is well known that topologically protected nontrivial surface states are not broken by external perturbations and further exhibit high carrier mobility and high electron density on some specific surfaces. In addition, electrides usually possess a lower work function due to the presence of approximately loose excess electrons. In this case, topological electrides not only build a bridge between topological materials and electrides, but also couple various excellent properties of these two materials. Since the concept of topological electrides was first proposed, several novel types of topological electrides have been reported in the last few years. Therefore, it is necessary to give a comprehensive review of these topological electrides. In this review, the history of the development of topological electrides and their current status is systematically summarized. In addition, relevant insights into the challenges and opportunities facing topological materials are provided.

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Multi‐Dimensional Topological Fermions in Electrides

Meng

Zhang

Jiang

et al. 2023

Advanced Physics Research

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Quadratic nodal point with large surface arc states in half-Heusler material ScBiPt

Yang

Liu

Tan

et al. 2022

Journal of Physics and Chemistry of Solids

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Facile synthesis of spherical-shaped CeC2–TiO2 nanocomposite electrocatalyst with boosted alkaline OER

Munawar,

Bashir,

Amanullah

et al. 2024

Materials Chemistry and Physics

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Sixfold, fourfold, and threefold excitations in the rare-earth metal carbide R2C3

Cited by 14 publications

References 76 publications

Multi‐Dimensional Topological Fermions in Electrides

Multi‐Dimensional Topological Fermions in Electrides

Quadratic nodal point with large surface arc states in half-Heusler material ScBiPt

Facile synthesis of spherical-shaped CeC2–TiO2 nanocomposite electrocatalyst with boosted alkaline OER

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