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Open access
Nature Communications, volume 14, issue 1, publication number 699

Mode locking of hole spin coherences in CsPb(Cl, Br)3 perovskite nanocrystals

Publication typeJournal Article
Publication date2023-02-08
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor16.6
ISSN20411723
General Chemistry
General Biochemistry, Genetics and Molecular Biology
Multidisciplinary
General Physics and Astronomy
Abstract

The spin physics of perovskite nanocrystals with confined electrons or holes is attracting increasing attention, both for fundamental studies and spintronic applications. Here, stable $${{{{{{{\rm{CsPb}}}}}}}}{({{{{{{{{\rm{Cl}}}}}}}}}_{0.56}{{{{{{{{\rm{Br}}}}}}}}}_{0.44})}_{3}$$ CsPb ( Cl 0.56 Br 0.44 ) 3 lead halide perovskite nanocrystals embedded in a fluorophosphate glass matrix are studied by time-resolved optical spectroscopy to unravel the coherent spin dynamics of holes and their interaction with nuclear spins of the 207Pb isotope. We demonstrate the spin mode locking effect provided by the synchronization of the Larmor precession of single hole spins in each nanocrystal in the ensemble that are excited periodically by a laser in an external magnetic field. The mode locking is enhanced by nuclei-induced frequency focusing. An ensemble spin dephasing time $${T}_{2}^{ * }$$ T 2 * of a nanosecond and a single hole spin coherence time of T2 = 13 ns are measured. The developed theoretical model accounting for the mode locking and nuclear focusing for randomly oriented nanocrystals with perovskite band structure describes the experimental data very well.

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Kirstein E. et al. Mode locking of hole spin coherences in CsPb(Cl, Br)3 perovskite nanocrystals // Nature Communications. 2023. Vol. 14. No. 1. 699
GOST all authors (up to 50) Copy
Kirstein E., Kopteva N. E., Yakovlev D. G., Zhukov E. A., Kolobkova E. V., Kuznetsova D. S., Belykh V., Yugova I. A., Glazov M. M., Bayer M., Greilich A. Mode locking of hole spin coherences in CsPb(Cl, Br)3 perovskite nanocrystals // Nature Communications. 2023. Vol. 14. No. 1. 699
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RIS Copy
TY - JOUR
DO - 10.1038/s41467-023-36165-0
UR - https://doi.org/10.1038%2Fs41467-023-36165-0
TI - Mode locking of hole spin coherences in CsPb(Cl, Br)3 perovskite nanocrystals
T2 - Nature Communications
AU - Kirstein, E.
AU - Kopteva, N. E.
AU - Yakovlev, D G
AU - Zhukov, E. A.
AU - Kolobkova, E V
AU - Kuznetsova, Daria S.
AU - Belykh, V. V.
AU - Yugova, Irina A.
AU - Glazov, Mikhail M.
AU - Bayer, M.
AU - Greilich, A.
PY - 2023
DA - 2023/02/08 00:00:00
PB - Springer Nature
IS - 1
VL - 14
SN - 2041-1723
ER -
BibTex
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BibTex Copy
@article{2023_Kirstein,
author = {E. Kirstein and N. E. Kopteva and D G Yakovlev and E. A. Zhukov and E V Kolobkova and Daria S. Kuznetsova and V. V. Belykh and Irina A. Yugova and Mikhail M. Glazov and M. Bayer and A. Greilich},
title = {Mode locking of hole spin coherences in CsPb(Cl, Br)3 perovskite nanocrystals},
journal = {Nature Communications},
year = {2023},
volume = {14},
publisher = {Springer Nature},
month = {feb},
url = {https://doi.org/10.1038%2Fs41467-023-36165-0},
number = {1},
doi = {10.1038/s41467-023-36165-0}
}
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