Theoretical investigation of quantum confinement on the Rashba effect in ZnO semiconductor nanocrystals
| Autor: | Xiaosong Li, Joseph M. Kasper, Daniel R. Gamelin |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
010304 chemical physics Condensed matter physics Dopant Condensed Matter::Other Ab initio General Physics and Astronomy Electronic structure Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 010402 general chemistry 01 natural sciences 0104 chemical sciences Crystal Condensed Matter::Materials Science Nanocrystal Quantum dot 0103 physical sciences Physical and Theoretical Chemistry Anisotropy Rashba effect |
| Zdroj: | The Journal of chemical physics. 152(1) |
| ISSN: | 1089-7690 |
| Popis: | Semiconducting nanocrystals have been the subject of intense research due to the ability to modulate the electronic and magnetic properties by controlling the size of the crystal, introducing dopants, and surface modification. While relatively simple models such as a particle in a sphere can work well to describe moderately sized quantum dots, this approximation becomes less accurate for very small nanocrystals that are strongly confined. In this work, we report all-electron, relativistic ab initio electronic structure calculations for a series of ZnO quantum dots in order to study the modulation of the Rashba effect. The impact and magnitude of spin-orbit coupling and crystalline anisotropy on the fine structure of the band-edge excitonic manifold are discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|