在二維材料中的超導態預計將推動下一代電子技術的發展，使其成為現代凝聚態物理學的關鍵主題。一種方法是將三維超導材料轉變為二維超薄薄膜。在本研究中，我們使用密度泛函理論（DFT）研究了鈮（Nb）超薄薄膜中的超導轉變溫度（Tc）。我們的結果表明，隨著Nb(111)厚度的減小，Tc逐漸降低，這歸因於電子-聲子耦合的減弱。這項工作表明，製造純淨的超薄薄膜能夠顯著影響材料的超導性，為降低維度的材料工程開闢了新的機會。

Superconducting states in two-dimensional materials are expected to drive the development of next-generation electronics, making them a critical topic in modern condensed matter physics. One approach is to transform a three-dimensional superconducting material into a two-dimensional ultra-thin film. In this study, we investigate the superconducting transition temperature (Tc) in Niobium (Nb) ultra-thin films using Density Functional Theory (DFT). Our results show that the Tc decreases as the thickness of Nb(111) is reduced, due to a weakening of the electron-phonon coupling. This work demonstrates that creating pure ultra-thin films can significantly impact material superconductivity, offering new opportunities for materials engineering in reduced dimensionality.

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