| Autor: |
Kirstein, E., Yakovlev, D. R., Glazov, M. M., Zhukov, E. A., Kudlacik, D., Kalitukha, I. V., Sapega, V. F., Dimitriev, G. S., Semina, M. A., Nestoklon, M. O., Ivchenko, E. L., Kopteva, N. E., Dirin, D. N., Nazarenko, O., Kovalenko, M. V., Baumann, A., Höcker, J., Dyakonov, V., Bayer, M. |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Nat Commun 13, 3062 (2022) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1038/s41467-022-30701-0 |
| Popis: |
The Land\'e or $g$-factors of charge carriers are decisive for the spin-dependent phenomena in solids and provide also information about the underlying electronic band structure. We present a comprehensive set of experimental data for values and anisotropies of the electron and hole Land\'e factors in hybrid organic-inorganic (MAPbI$_3$, MAPb(Br$_{0.5}$Cl$_{0.5}$)$_3$, MAPb(Br$_{0.05}$Cl$_{0.95}$)$_3$, FAPbBr$_3$, FA$_{0.9}$Cs$_{0.1}$PbI$_{2.8}$Br$_{0.2}$) and all-inorganic (CsPbBr$_3$) lead halide perovskites, determined by pump-probe Kerr rotation and spin-flip Raman scattering in magnetic fields up to 10~T at cryogenic temperatures. Further, we use first-principles DFT calculations in combination with tight-binding and $\mathbf k \cdot \mathbf p$ approaches to calculate microscopically the Land\'e factors. The results demonstrate their universal dependence on the band gap energy across the different perovskite material classes, which can be summarized in a universal semi-phenomenological expression, in good agreement with experiment. |
| Databáze: |
arXiv |
| Externí odkaz: |
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