Optical and mechanical properties and electron–phonon interaction in graphene doped with metal atoms
| Autor: | Radoš Gajić, Andrijana Šolajić, Jelena Pešić |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Superconductivity
Materials science Condensed matter physics Graphene Doping 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Magnetic field 010309 optics Metal Coupling (electronics) Adsorption law visual_art 0103 physical sciences Physics::Atomic and Molecular Clusters visual_art.visual_art_medium Density functional theory Electrical and Electronic Engineering 0210 nano-technology |
| Zdroj: | Optical and Quantum Electronics. 52 |
| ISSN: | 1572-817X 0306-8919 |
| Popis: | Graphene, the first experimentally realized 2D material with outstanding mechanical and electrical properties as well an excellent optical transparency, is predicted to have many applications in various scientific fields. Furthermore, there are numerous ways for modifications of pure graphene that allow precise tuning of its properties or observation of some new effects, including the applied strain, various types of controlled defects, exposure to electrical or magnetic field, or doping. It is known that graphene with alkali metal atoms adsorbed on its surface becomes superconducting with due to enhanced electron–phonon coupling. The question remains what happens with optical and mechanical properties of such structures, can we preserve or enhance these superb properties while making graphene superconducting at the same time. Here we investigate structures based on graphene doped with several metal atoms—Sr, and some transition metal atoms such are Y and Sc. Using the density functional theory, we analyze the optical and elastic properties of those structures, discussing the influence of adsorbed atoms on these properties and calculate the electron–phonon coupling related properties. |
| Databáze: | OpenAIRE |
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