Kagome-like silicene: A novel exotic form of two-dimensional epitaxial silicon
Journal article, 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

Author

Yasmine Sassa

Chalmers, Physics, Materials Physics

Fredrik O. L. Johansson

Uppsala University

Andreas Lindblad

Uppsala University

Milad G. Yazdi

Royal Institute of Technology (KTH)

Konstantin Simonov

Uppsala University

Jonas Weissenrieder

Royal Institute of Technology (KTH)

Matthias Muntwiler

Paul Scherrer Institut

Fadil Iyikanat

İzmir Institute of Technology (IZ -TECH)

Hasan Sahin

İzmir Institute of Technology (IZ -TECH)

Thierry Angot

Aix Marseille University

Eric Salomon

Aix Marseille University

Guy Le Lay

Aix Marseille University

Applied Surface Science

0169-4332 (ISSN)

Vol. 530 147195

Realization of Novel Low‐Dimensional Skyrmion Systems

Swedish Research Council (VR), 2019-06-01 -- 2021-12-31.

Subject Categories

Materials Chemistry

Other Physics Topics

Condensed Matter Physics

DOI

10.1016/j.apsusc.2020.147195

More information

Latest update

10/28/2020