碱金属原子修饰双层联苯的超导性研究

IF 4.3 3区材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Journal of Physics and Chemistry of Solids Pub Date : 2025-07-17 DOI:10.1016/j.jpcs.2025.113025

Wenchao Zhang, Mingquan Zhang, Mingwei Wang

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引用次数: 0

摘要

我们报道了一种新型的碱金属原子（Li/Na）修饰的二维双层联苯，并研究了它的电子结构、声子色散和超导性能。我们的研究结果表明，超导转变温度为0.11 K和0.76 K，低于单层联苯的温度。证实了碱金属原子修饰的结构将对应于高电子态密度的峰移离费米能级，从而导致较低的Tc。我们的研究扩展了二维超导碳基家族，对二维超导的研究具有重要意义。

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Investigation on the superconductivities of bilayer biphenylene decorated with alkali metal atom

We report a novel two-dimensional bilayer biphenylene decorated with alkali metal atoms (Li/Na) and investigate its electronic structures, phonon dispersion and superconducting properties. Our findings suggest that superconducting transition temperatures are 0.11 K and 0.76 K, which are lower than those of monolayer biphenylene. It is confirmed that the structures decorated with alkali metal atoms shift the peak corresponding to a high electronic density of states away from the Fermi level, which leads to a lower Tc. Our study expands the 2D superconducting carbon-based family, which is of great significance for the study of 2D superconductivity.

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来源期刊

Journal of Physics and Chemistry of Solids 工程技术-化学综合

CiteScore

7.80

自引率

2.50%

发文量

605

审稿时长

40 days

期刊介绍： The Journal of Physics and Chemistry of Solids is a well-established international medium for publication of archival research in condensed matter and materials sciences. Areas of interest broadly include experimental and theoretical research on electronic, magnetic, spectroscopic and structural properties as well as the statistical mechanics and thermodynamics of materials. The focus is on gaining physical and chemical insight into the properties and potential applications of condensed matter systems. Within the broad scope of the journal, beyond regular contributions, the editors have identified submissions in the following areas of physics and chemistry of solids to be of special current interest to the journal: Low-dimensional systems Exotic states of quantum electron matter including topological phases Energy conversion and storage Interfaces, nanoparticles and catalysts.