The potentially crucial role of quasi-particle interferences for the growth of silicene on graphite
为石墨上的 silicene 的生长的伪粒子干扰的潜在地关键的角色作者机构：LPICMCNRSEcole PolytechniqueIP ParisPalaiseau 91128France Dipartimento di FisicaUniversita di Roma"Tor Vergata"Roma 00133Italy CNRSAix-Marseille UniversiteIM2NPMarseille 13397France
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2020年第13卷第9期
页 面：2378-2383页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学]
基 金：CERMM Hariri Foundation for Sustainable Human Development, (GA 823728) IDRIS, (A004-090642) University of K?ln Horizon 2020 Framework Programme, H2020, (823728) Horizon 2020 Framework Programme, H2020
主 题：silicene growth highly oriented pyrolytic graphite(HOPG) ab initio calculations scanning tunneling microscopy(STM) quasi-particle interferences two-dimensional(2D)self-assembly
摘 要：A comprehensive picture of the initial stages of silicene growth on graphite is *** is shown that quasiparticle interferences play a crucial role in the formation of the observed silicene *** propose,on one hand,that the charge modulations caused by those quantum interferences serve as templates and guide the incoming Si atoms to self-assemble to the unique(√3 x√3)R30°honeycomb atomic *** the other hand,their limited extension limits the growth to about 150 Si atoms under our present deposition *** here proposed electrostatic interaction finally explains the unexpected stability of the observed silicene islands over time and with *** the robust guiding nature of those quantum interferences during the early growth phase,we demonstrate that the window of experimental conditions for silicene growth is quite narrow,making it an extremely challenging experimental ***,it is shown that the experimentally observed threedimensional silicon clusters might very well be the simple result of the end of the silicene growth resulting from the limited extent of the quasi-particle interferences.
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