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Giant Rashba Splitting inCH3NH3PbBr3Organic-Inorganic Perovskite
Open accessAbstract
As they combine decent mobilities with extremely long carrier lifetimes, organic-inorganic perovskites open a whole new field in optoelectronics. Measurements of their underlying electronic structure, however, are still lacking. Using angle-resolved photoelectron spectroscopy, we measure the valence band dispersion of single-crystal CH_{3}NH_{3}PbBr_{3}. The dispersion of the highest energy band is extracted applying a modified leading edge method, which accounts for the particular density of states of organic-inorganic perovskites. The surface Brillouin zone is consistent with bulk-terminated surfaces both in the low-temperature orthorhombic and the high-temperature cubic phase. In the low-temperature phase, we find a ring-shaped valence band maximum with a radius of 0.043 Å^{-1}, centered around a 0.16 eV deep local minimum in the dispersion of the valence band at the high-symmetry point. Intense circular dichroism is observed. This dispersion is the result of strong spin-orbit coupling. Spin-orbit coupling is also present in the room-temperature phase. The coupling strength is one of the largest ones reported so far.
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Lead halide perovskite nanowire lasers with low lasing thresholds and high quality factors
Zhu, H., Fu, Y., Meng, F., Wu, X., Gong, Z., Ding, Q., Gustafsson, M. V., Trinh, M. T., Jin, S., & Zhu, X.-Y. (2015) · Nature Materials · doi:10.1038/nmat4271 · Cited by 2,836
Real-Time Observation of Organic Cation Reorientation in Methylammonium Lead Iodide Perovskites
Bakulin, A. A., Selig, O., Bakker, H. J., Rezus, Y. L. A., Müller, C., Glaser, T., Lovrincic, R., Sun, Z., Chen, Z., Walsh, A., et al. (2015) · The Journal of Physical Chemistry Letters · doi:10.1021/acs.jpclett.5b01555 · Cited by 372
Cited by
Chiral-perovskite optoelectronics
Long, G., Sabatini, R., Saidaminov, M. I., Lakhwani, G., Rasmita, A., Liu, X., Sargent, E. H., & Gao, W. (2020) · Nature Reviews Materials · doi:10.1038/s41578-020-0181-5 · Cited by 909
Synthetic Approaches for Halide Perovskite Thin Films
Dunlap-Shohl, W. A., Zhou, Y., Padture, N. P., & Mitzi, D. B. (2019) · Chemical Reviews · doi:10.1021/acs.chemrev.8b00318 · Cited by 631
Spin-dependent charge transport through 2D chiral hybrid lead-iodide perovskites
Lu, H., Wang, J., Xiao, C., Pan, X., Chen, X., Brunecky, R., Berry, J. J., Zhu, K., Beard, M. C., & Vardeny, Z. V. (2019) · Science Advances · doi:10.1126/sciadv.aay0571 · Cited by 533
Zhai, Y., Baniya, S., Zhang, C., Li, J., Haney, P., Sheng, C.-X., Ehrenfreund, E., & Vardeny, Z. V. (2017) · Science Advances · doi:10.1126/sciadv.1700704 · Cited by 398
What Remains Unexplained about the Properties of Halide Perovskites?
Egger, D. A., Bera, A., Cahen, D., Hodes, G., Kirchartz, T., Kronik, L., Lovrincic, R., Rappe, A. M., Reichman, D. R., & Yaffe, O. (2018) · Advanced Materials · doi:10.1002/adma.201800691 · Cited by 293
Metadata
- Authors
- Niesner, D., Wilhelm, M., Levchuk, I., Osvet, A., Shrestha, S., Batentschuk, M., Brabec, C., & Fauster, T.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2016-09-13
- Volume
- 117
- Issue
- 12
- Pages
- 126401-126401
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2461262195
- Cited by
- 348
- References
- 2
- FWCI
- 18.29
- Type
- journal article
- Language
- en
- Open access
- green
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- Niesner, D., Wilhelm, M., Levchuk, I., Osvet, A., Shrestha, S., Batentschuk, M., Brabec, C., & Fauster, T. (2016). Giant Rashba Splitting inCH3NH3PbBr3Organic-Inorganic Perovskite. Physical Review Letters. https://doi.org/10.1103/physrevlett.117.126401
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