2015/06/04 by Fengfeng Zhu, Weijiong Chen, Wei-jiong Chen +9 · 1,779 citations
Materials Science · Physics and Astronomy · #2D Materials and Applications #Condensed matter physics #Epitaxy #Exfoliation joint #Germanene #Graphene #Graphene research and applications #Layer (electronics) #Materials science #Molecular beam epitaxy #Nanotechnology #Nuclear magnetic resonance #Optoelectronics #Photoemission spectroscopy #Physics #Scanning tunneling microscope #Silicene #Topological Materials and Phenomena #X-ray photoelectron spectroscopy #cond-mat.mtrl-sci
paper · pdf · doi:10.1038/nmat4384
published in Nature Materials 14(10), 1020-1025 (Nature Portfolio) · 20 pages, 4 figures
arxiv created 2015/06/04 · openalex publication_date 2015/08/03 · arxiv updated 2015/10/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Ultrathin semiconductors present various novel electronic properties. The first experimental realized two-dimensional (2D) material is graphene. Searching 2D materials with heavy elements bring the attention to Si, Ge and Sn. 2D buckled Si-based silicene was realized by molecular beam epitaxy (MBE) growth1,2. Ge-based germanene was realized by mechanical exfoliation3. Sn-based stanene has its unique properties. Stanene and its derivatives can be 2D topological insulators (TI) with a very large band gap as proposed by first-principles calculations4, or can support enhanced thermoelectric performance5, topological superconductivity6 and the near-room-temperature quantum anomalous Hall (QAH) effect7. For the first time, in this work, we report a successful fabrication of 2D stanene by MBE. The atomic and electronic structures were determined by scanning tunneling microscopy (STM) and angle-resolved photoemission spectroscopy (ARPES) in combination with first-principles calculations. This work will stimulate the experimental study and exploring the future application of stanene.