Coherent Spin Precession and Lifetime-Limited Spin Dephasing in CsPbBr3 Perovskite Nanocrystals.
Matthew J. Crane
1
,
Laura Jacoby
1
,
Ronen A Cohen
1, 2, 3
,
Yun-Ping Huang
3
,
Christine Keiko Luscombe
1, 2, 3
,
D. R. Gamelin
1, 2
1
Publication type: Journal Article
Publication date: 2020-11-25
scimago Q1
wos Q1
SJR: 2.967
CiteScore: 14.9
Impact factor: 9.1
ISSN: 15306984, 15306992
PubMed ID:
33238099
General Chemistry
Condensed Matter Physics
General Materials Science
Mechanical Engineering
Bioengineering
Abstract
Carrier spins in semiconductor nanocrystals are promising candidates for quantum information processing. Using a combination of time-resolved Faraday rotation and photoluminescence spectroscopies, we demonstrate optical spin polarization and coherent spin precession in colloidal CsPbBr3 nanocrystals that persists up to room temperature. By suppressing the influence of inhomogeneous hyperfine fields with a small applied magnetic field, we demonstrate inhomogeneous hole transverse spin-dephasing times (T2*) that approach the nanocrystal photoluminescence lifetime, such that nearly all emitted photons derive from coherent hole spins. Thermally activated LO phonons drive additional spin dephasing at elevated temperatures, but coherent spin precession is still observed at room temperature. These data reveal several major distinctions between spins in nanocrystalline and bulk CsPbBr3 and open the door for using metal-halide perovskite nanocrystals in spin-based quantum technologies.
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60
Total citations:
60
Citations from 2024:
28
(46%)
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Crane M. J. et al. Coherent Spin Precession and Lifetime-Limited Spin Dephasing in CsPbBr3 Perovskite Nanocrystals. // Nano Letters. 2020. Vol. 20. No. 12. pp. 8626-8633.
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Crane M. J., Jacoby L., Cohen R. A., Huang Y., Luscombe C. K., Gamelin D. R. Coherent Spin Precession and Lifetime-Limited Spin Dephasing in CsPbBr3 Perovskite Nanocrystals. // Nano Letters. 2020. Vol. 20. No. 12. pp. 8626-8633.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1021/acs.nanolett.0c03329
UR - https://doi.org/10.1021/acs.nanolett.0c03329
TI - Coherent Spin Precession and Lifetime-Limited Spin Dephasing in CsPbBr3 Perovskite Nanocrystals.
T2 - Nano Letters
AU - Crane, Matthew J.
AU - Jacoby, Laura
AU - Cohen, Ronen A
AU - Huang, Yun-Ping
AU - Luscombe, Christine Keiko
AU - Gamelin, D. R.
PY - 2020
DA - 2020/11/25
PB - American Chemical Society (ACS)
SP - 8626-8633
IS - 12
VL - 20
PMID - 33238099
SN - 1530-6984
SN - 1530-6992
ER -
Cite this
BibTex (up to 50 authors)
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@article{2020_Crane,
author = {Matthew J. Crane and Laura Jacoby and Ronen A Cohen and Yun-Ping Huang and Christine Keiko Luscombe and D. R. Gamelin},
title = {Coherent Spin Precession and Lifetime-Limited Spin Dephasing in CsPbBr3 Perovskite Nanocrystals.},
journal = {Nano Letters},
year = {2020},
volume = {20},
publisher = {American Chemical Society (ACS)},
month = {nov},
url = {https://doi.org/10.1021/acs.nanolett.0c03329},
number = {12},
pages = {8626--8633},
doi = {10.1021/acs.nanolett.0c03329}
}
Cite this
MLA
Copy
Crane, Matthew J., et al. “Coherent Spin Precession and Lifetime-Limited Spin Dephasing in CsPbBr3 Perovskite Nanocrystals..” Nano Letters, vol. 20, no. 12, Nov. 2020, pp. 8626-8633. https://doi.org/10.1021/acs.nanolett.0c03329.