Interstitial anionic electrons favoring superconductivity in Li-As electrides
Yaping Zhao, Aitor Bergara, Xiaohua Zhang, Fei Li, Yong Liu, Guochun Yang
DOI 10.1103/PhysRevB.108.104505 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Interstitial anionic electrons (IAEs) at lattice cavities of electrides, which have diverse morphologies and concentrations, can induce interesting physical and chemical properties. Understanding the correlation between IAEs and electron-phonon coupling is crucial for the development of new electride superconductors. We have applied first-principles structural search calculations to predict new high-pressure Li-As electrides, such as P6/mmm LixAs (x=5 and 8), Li6As with Cmc21 and C2/c symmetries, and C2/mLi10X (X=As and Sb), which together with the already known C2/mLi10Te compound present favorable characteristics (i.e., variable donor content, structural symmetries, and acceptor species) to explore IAE-related superconductivity. According to our results, the predicted superconducting temperatures of these electrides are positively correlated with the number and connectivity of IAEs.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Li8As Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 6.3 | 50 GPa | unknown |
| Li5As Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | 50 GPa | unknown |
| Li10As Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 14.1 | 100 GPa | unknown |
| Li10Sb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 9.2 | 100 GPa | unknown |
| Li10Te Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4 | 100 GPa | unknown |
Similar papers
Pressure-stabilized electride Li10Si with superconducting and superionic behavior
similarity 0.93Qinfang Wang et al.
Source status unknown — claims are unverified
Superconductivity in Li8Hn electrides: The effect of interstitial anionic electrons on electron-phonon coupling
similarity 0.93Zixuan Guo et al.
Source status unknown — claims are unverified
Pressure-induced superconductivity and electride states in lithium-gallium compounds
similarity 0.93Ting Zhong et al.
Source status unknown — claims are unverified
Pressure-driven charge redistribution and superconductivity enhancement in host-guest Ca4Li electride
similarity 0.92Tingwei An et al.
Source status unknown — claims are unverified
As-Li electrides under high pressure: Superconductivity, plastic, and superionic states
similarity 0.92Zhongyu Wan et al.
Source status unknown — claims are unverified
Pressure-induced superconductivity in Li-Te electrides
similarity 0.92Xiaohua Zhang et al.
Source status unknown — claims are unverified