The impact of preferential orientations of organic cation on the spin textures of hybrid organic-inorganic perovskite CH3NH3PbX3 (X = Br, Cl)
| Autor: | Moh. Adhib Ulil Absor, Yedija Yusua Sibuea Teweng |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Spin polarization Spintronics 02 engineering and technology Electronic structure 021001 nanoscience & nanotechnology 01 natural sciences Symmetry (physics) Chemical physics 0103 physical sciences Density functional theory Perturbation theory 0210 nano-technology Spin-½ Perovskite (structure) |
| Zdroj: | Materials Today: Proceedings. 44:3273-3276 |
| ISSN: | 2214-7853 |
| DOI: | 10.1016/j.matpr.2020.11.516 |
| Popis: | The electronic structure of bulk Hybrid Organic-Inorganic Perovskite (HOIP) CH3NH3PbX3 (X = Br and Cl) has been investigated using a computational method based on Density Functional Theory (DFT). The investigation demonstrates that spin splitting is found when a favoured orientation of organic cation is aligned along the [ 111 ] , the [ 101 ] and the [ 011 ] directions. We show that Rashba splitting is induced with the anisotropical character of spin polarization in [ 111 ] directions, whereas the unidirectional out-of-plane of spin polarizations are achieved in [ 011 ] and [ 101 ] directions. By employing k → ∙ p → perturbation theory based on symmetry consideration, we find a large spin–orbit strength in these splitting for each orientations. These findings show that the bulk HOIP CH3NH3PbX3 is a promising material for the development of perovskite-based spintronic devices. |
| Databáze: | OpenAIRE |
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