文献类型：期刊文献

英文题名：Mechanism of remote epitaxy of stanene on Cu(111) substrate through monolayer graphene linking

作者：Wu, Pingru[1];Liu, Xingen[1];Liang, Qifeng[1];Liu, Zhun[1]

机构：[1]Shaoxing Univ, Dept Phys, Shaoxing 312000, Peoples R China

年份：2022

卷号：131

期号：20

外文期刊名：JOURNAL OF APPLIED PHYSICS

收录：SCI-EXPANDED(收录号：WOS:000802903200001)、、EI(收录号：20222212183793)、Scopus(收录号：2-s2.0-85131071271)、WOS

基金：Q.L. gratefully acknowledges financial support from the National Natural Science Foundation of China (No. 11574215). Z.L. acknowledges the "Research Start-up Fund Project of Shaoxing University" (No. 20210011).

语种：英文

外文关键词：Adatoms - Calculations - Coated materials - Monolayers - Substrates - Thin films - Van der Waals forces

外文摘要：Graphene-coated substrates have a significant effect on regulating the commensurate epilayer growth of ionic thin-films, which has demonstrated that the polarity of atomic binding in ionic-bonded materials is strong enough to penetrate through a few-layer graphene, but that from the covalent-bonded material is screened even by a monolayer graphene (MLG). However, recent studies have demonstrated that the covalent-bonded stanene film can also be obtained by the remote heteroepitaxy on the monolayer graphene-covered Cu(111) substrate. In this work, we use first-principles calculations to uncover the microscopic mechanism of the unusual remote interactions, which facilitate the Sn adatom growth on the MLG-covered Cu substrate. Our calculations suggest that the lattice sites of MLG determine the adatom registry and provide an essential mediator role in the extended adatom-linking-substrate interactions, whereas the Cu substrate under the MLG reinforces the adsorption on the entire surface by the extended hybridization of MLG/Cu(111) interfacial states with the Sn adatom localized states. This finding provides a novel insight into the remote epitaxial mechanism of 2D films on the MLG-covered metal substrates, which opens the opportunity in the field of vdW (van der Waals) epitaxial of low-dimensional element crystalline and their transferable integration.& nbsp;Published under an exclusive license by AIP Publishing.