Surface Structure Determination of Black Phosphorus Using Photoelectron Diffraction
| Autor: | Abner de Siervo, Richard Landers, Lucas Barreto, Luis Henrique de Lima |
|---|---|
| Přispěvatelé: | UNIVERSIDADE ESTADUAL DE CAMPINAS |
| Rok vydání: | 2015 |
| Předmět: |
Surface (mathematics)
Diffraction Materials science Raios X - Difração Analytical chemistry FOS: Physical sciences 02 engineering and technology 01 natural sciences law.invention Buckling (Mechanics) chemistry.chemical_compound Condensed Matter::Materials Science Nuclear magnetic resonance Flambagem (Mecânica) law 0103 physical sciences Perpendicular Artigo original Surface layer 010306 general physics Photoelectron - Diffraction Condensed Matter - Materials Science Materials Science (cond-mat.mtrl-sci) 021001 nanoscience & nanotechnology Synchrotron Phosphorene chemistry Fotoelétrons - Difração X-rays - Diffraction Scanning tunneling microscope 0210 nano-technology Layer (electronics) |
| Zdroj: | Repositório da Produção Científica e Intelectual da Unicamp Universidade Estadual de Campinas (UNICAMP) instacron:UNICAMP |
| DOI: | 10.48550/arxiv.1511.02668 |
| Popis: | Agradecimentos: This work received financial support from FAPESP, CNPq (Project No. 455807/2014-0, 401826/2013-9, 308717/2012-0), and CAPES from Brazil. XPD measurements were done at LNLS under Proposal No. PGM-19062. L.H.L. and L.B. thank CNPq for postdoctoral fellowship support. The authors thanks the LNLS staff, especially J.C. Cezar, for technical support during beam time Abstract: The atomic structure of single-crystalline black phosphorus is studied using high-resolution synchrotron-based photoelectron diffraction (XPD). The results show that the topmost phosphorene layer in the black phosphorus is slightly displaced compared to the bulk structure and presents a small contraction in the direction perpendicular to the surface. Furthermore, the XPD results show the presence of a small buckling among the surface atoms, in agreement with previously reported scanning tunneling microscopy results. The contraction of the surface layer added to the presence of the buckling indicates a uniformity in the size of the sp3 bonds between P atoms at the surface FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES Aberto |
| Databáze: | OpenAIRE |
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