Emerging various electronic and magnetic properties of silicene by light rare-earth metal substituted doping
| Autor: | Chao Cao, Qing-Yuan Chen, Wen-Zhong Li, Yao He, Ming-Yang Liu, Long Gong |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Silicon Rare earth chemistry.chemical_element 02 engineering and technology 01 natural sciences Metal Condensed Matter::Materials Science Condensed Matter::Superconductivity 0103 physical sciences Atom General Materials Science Electrical and Electronic Engineering 010302 applied physics Magnetic moment Condensed matter physics Silicene Doping 021001 nanoscience & nanotechnology Condensed Matter Physics chemistry visual_art visual_art.visual_art_medium Condensed Matter::Strongly Correlated Electrons Density functional theory 0210 nano-technology |
| Zdroj: | Superlattices and Microstructures. 148:106712 |
| ISSN: | 0749-6036 |
| Popis: | Silicene is a single-layer silicon film, and metal atom doping can effectively regulate its physical properties. In this paper, we study the electronic and magnetic properties of light rare-earth (RE) doped silicene based on density functional theory (DFT) calculations. Through the study of three doping concentrations, it is found that light rare-earth (RE) doped silicene can produce large magnetic moment, and their magnetic properties are mainly derived from the f states of rare-earth (RE) atom. Except for Pm- and Sm-doped silicene, the bonding strength of the Si–Si bond of other doping is weakened. Moreover, we also find various electronic properties of light rare-earth (RE) doped silicene, such as half-metallic, metallic, and semiconducting properties, which may provide some new ideas for the application of silicene. |
| Databáze: | OpenAIRE |
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