Kagome-like silicene: A novel exotic form of two-dimensional epitaxial silicon
Artikel i vetenskaplig tidskrift, 2020

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.

Scanning tunneling microscopy

2D materials

Silicene

DFT calculations

Angularresolved photoelectrons spectroscopy

Författare

Yasmine Sassa

Chalmers, Fysik, Materialfysik

Fredrik O. L. Johansson

Uppsala universitet

Andreas Lindblad

Uppsala universitet

Milad G. Yazdi

Kungliga Tekniska Högskolan (KTH)

Konstantin Simonov

Uppsala universitet

Jonas Weissenrieder

Kungliga Tekniska Högskolan (KTH)

Matthias Muntwiler

Paul Scherrer Institut

Fadil Iyikanat

İzmir Yüksek Teknoloji Enstitüsü (IZ -TECH)

Hasan Sahin

İzmir Yüksek Teknoloji Enstitüsü (IZ -TECH)

Thierry Angot

Aix-Marseille Université

Eric Salomon

Aix-Marseille Université

Guy Le Lay

Aix-Marseille Université

Applied Surface Science

0169-4332 (ISSN)

Vol. 530 147195

Framtidens Lågdimensionella Skyrmion Material

Vetenskapsrådet (VR), 2019-06-01 -- 2021-12-31.

Ämneskategorier

Materialkemi

Annan fysik

Den kondenserade materiens fysik

DOI

10.1016/j.apsusc.2020.147195

Mer information

Senast uppdaterat

2020-10-28