Optical orientation of excitons and charge carriers in methylammonium lead iodide perovskite single crystals in the orthorhombic phase
The authors demonstrate here efficient optical spin orientation in orthorhombic MAPbI${}_{3}$ perovskite crystals at a temperature of 1.6 K. Exciton polarization reaches 85% and persists throughout their lifetime. It is robust to detuning excitation energy up to 0.4 eV. Spin dynamics reveal inactive Dyakonov-Perel spin relaxation, long spin-relaxation times, and distinct Land\'e $g$-factors for electrons and holes. Magnetic field effects and spin beats expose contributions from localized carriers.
Authors
- M. Bayer (ORCID: https://orcid.org/0000-0002-0893-5949)
- Nataliia E. Kopteva (ORCID: https://orcid.org/0000-0003-0865-0393)
- M. Kotur (ORCID: https://orcid.org/0000-0002-2569-5051)
- Maksym V. Kovalenko (ORCID: https://orcid.org/0000-0002-6396-8938)
- Eyüp Yalcin (ORCID: https://orcid.org/0000-0003-2891-4173)
- Dmitry N. Dirin (ORCID: https://orcid.org/0000-0002-5187-4555)
- Ilya A. Akimov (ORCID: https://orcid.org/0000-0002-2035-2324)
- Dmitri R. Yakovlev (ORCID: https://orcid.org/0000-0001-7349-2745)
- Bekir Türedi (ORCID: https://orcid.org/0000-0003-2208-0737)
Institutions
- TU Dortmund University (DE)
- ETH Zurich (CH)
- Swiss Federal Laboratories for Materials Science and Technology (CH)
Publication Details
- Journal
- Physical review. B./Physical review. B
- Published
- 2025-05-01
- DOI
- https://doi.org/10.1103/physrevb.111.195201
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Science Foundation
- Deutsche Forschungsgemeinschaft
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
- Eidgenössische Technische Hochschule Zürich