Compelling experimental evidence of a Dirac cone in the electronic structure of a 2D Silicon layer
| العنوان: | Compelling experimental evidence of a Dirac cone in the electronic structure of a 2D Silicon layer |
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| المؤلفون: | Ivana Vobornik, A. Bendounan, Fausto Sirotti, Gérald Dujardin, Hamid Oughaddou, Hanna Enriquez, Abdelkader Kara, Pranab Kumar Das, Andrew J. Mayne, Sana Sadeddine |
| المصدر: | Scientific Reports Scientific reports (Nature Publishing Group) 7 (2017). doi:10.1038/srep44400 info:cnr-pdr/source/autori:Sadeddine S.; Enriquez H.; Bendounan A.; Kumar Das P.; Vobornik I.; Kara A.; Mayne A.J.; Sirotti F.; Dujardin G.; Oughaddou H./titolo:Compelling experimental evidence of a Dirac cone in the electronic structure of a 2D Silicon layer/doi:10.1038%2Fsrep44400/rivista:Scientific reports (Nature Publishing Group)/anno:2017/pagina_da:/pagina_a:/intervallo_pagine:/volume:7 |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | Physics, Condensed Matter - Materials Science, Multidisciplinary, 82D80, Condensed matter physics, Silicon, Physics::Instrumentation and Detectors, Materials Science (cond-mat.mtrl-sci), FOS: Physical sciences, chemistry.chemical_element, 02 engineering and technology, Electronic structure, 021001 nanoscience & nanotechnology, 01 natural sciences, Article, Dirac cone, chemistry, 0103 physical sciences, 010306 general physics, 0210 nano-technology, Layer (electronics) |
| الوصف: | The remarkable properties of graphene stem from its two-dimensional (2D) structure, with a linear dispersion of the electronic states at the corners of the Brillouin zone (BZ) forming a Dirac cone. Since then, other 2D materials have been suggested based on boron, silicon, germanium, phosphorus, tin, and metal di-chalcogenides. Here, we present an experimental investigation of a single silicon layer on Au(111) using low energy electron diffraction (LEED), high resolution angle-resolved photoemission spectroscopy (HR-ARPES), and scanning tunneling microscopy (STM). The HR-ARPES data show compelling evidence that the silicon based 2D overlayer is responsible for the observed linear dispersed feature in the valence band, with a Fermi velocity of "Equation missing" comparable to that of graphene. The STM images show extended and homogeneous domains, offering a viable route to the fabrication of silicene-based opto-electronic devices. |
| تدمد: | 2045-2322 |
| DOI: | 10.1038/srep44400 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::006be88c5e61d865b0b0a3e3cdebe0cb https://pubmed.ncbi.nlm.nih.gov/28281666 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....006be88c5e61d865b0b0a3e3cdebe0cb |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20452322 |
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| DOI: | 10.1038/srep44400 |