Authors: | 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. |
Title: | The Landé factors of electrons and holes in lead halide perovskites: universal dependence on the band gap |
Language (ISO): | en |
Abstract: | The Landé 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 Landé factors in hybrid organic-inorganic (MAPbI3, MAPb(Br0.5Cl0.5)3, MAPb(Br0.05Cl0.95)3, FAPbBr3, FA0.9Cs0.1PbI2.8Br0.2, MA=methylammonium and FA=formamidinium) and all-inorganic (CsPbBr3) 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 density functional theory (DFT) calculations in combination with tight-binding and k ⋅ p approaches to calculate microscopically the Landé 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. |
Subject Headings: | Magneto-optics Quantum mechanics Semiconductors Spintronics Ultrafast photonics |
URI: | http://hdl.handle.net/2003/41170 http://dx.doi.org/10.17877/DE290R-23017 |
Issue Date: | 2022-06-02 |
Rights link: | https://creativecommons.org/licenses/by/4.0/ |
Appears in Collections: | Experimentelle Physik II |
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File | Description | Size | Format | |
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s41467-022-30701-0.pdf | 1.67 MB | Adobe PDF | View/Open |
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