Enhanced many-body effects in one-dimensional linear atomic chains
| Autor: | Ruixiang Fei, Jing Lu, Zhengxiang Gao, Yangyang Wang, Dapeng Yu, Guangfu Luo, Shigeru Nagase |
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| Rok vydání: | 2013 |
| Předmět: |
Physics
Absorption spectroscopy Condensed matter physics Exciton Binding energy Ab initio Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Many body Electronic Optical and Magnetic Materials Metal Chain (algebraic topology) visual_art visual_art.visual_art_medium Quasiparticle |
| Zdroj: | physica status solidi (b). 250:1636-1643 |
| ISSN: | 0370-1972 |
| DOI: | 10.1002/pssb.201248087 |
| Popis: | We present the quasiparticle energy and optical absorption spectrum results of 1D linear H, BN, C, and Au chains, which are the lower size limit of a periodic material, by using ab initio many-body approaches. Unprecedentedly large quasiparticle corrections and excitonic effects are revealed in these extreme systems compared with quasi-1D, 2D, and 3D periodic systems. The binding energy of the bound exciton is up to 3.55 eV in the semiconducting BN chain and 0.5 eV in the metallic C chain, the latter of which is the largest in a metallic system. |
| Databáze: | OpenAIRE |
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