Kagome-like silicene: A novel exotic form of two-dimensional epitaxial siliconShow others and affiliations
2020 (English)In: Applied Surface Science, ISSN 0169-4332, E-ISSN 1873-5584, Vol. 530, article id 147195Article in journal (Refereed) Published
Abstract [en]
Since the discovery of graphene, intensive efforts have been made in search of novel two-dimensional (2D) materials. Decreasing the materials dimensionality to their ultimate thinness is a promising route to unveil new physical phenomena, and potentially improve the performance of devices. Among recent 2D materials, analogs of graphene, the group IV elements have attracted much attention for their unexpected and tunable physical properties. Depending on the growth conditions and substrates, several structures of silicene, germanene, and stanene can be formed. Here, we report the synthesis of a Kagome-like lattice of silicene on aluminum (1 1 1) substrates. We provide evidence of such an exotic 2D Si allotrope through scanning tunneling microscopy (STM) observations, high-resolution core-level (CL) and angle-resolved photoelectron spectroscopy (ARPES) measurements, along with Density Functional Theory calculations.
Place, publisher, year, edition, pages
ELSEVIER , 2020. Vol. 530, article id 147195
Keywords [en]
2D materials, Silicene, Scanning tunneling microscopy, DFT calculations, Angularresolved photoelectrons spectroscopy
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:kth:diva-281124DOI: 10.1016/j.apsusc.2020.147195ISI: 000562343800005Scopus ID: 2-s2.0-85088656594OAI: oai:DiVA.org:kth-281124DiVA, id: diva2:1467792
Note
QC 20200916
2020-09-162020-09-162024-03-27Bibliographically approved