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Effect of radiative cooling on the size-dependent stability of small boron clusters

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Fielicke,  André
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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PhysRevA.98.012501.pdf
(Publisher version), 358KB

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Citation

Ferrari, P., Vanbuel, J., Hansen, K., Lievens, P., Janssens, E., & Fielicke, A. (2018). Effect of radiative cooling on the size-dependent stability of small boron clusters. Physical Review A, 98(1): 012501. doi:10.1103/PhysRevA.98.012501.


Cite as: http://hdl.handle.net/21.11116/0000-0001-BC11-8
Abstract
The mass spectrum of cationic boron clusters, BN+ (N = 5 − 20), after photoexcitation demonstrates that radiative cooling is an important, though often neglected, process in determining the relative stability of small and isolatedparticles. The observed intensities in massspectra suggest that B5+, B11+, B13+, and B15+ are particularly stable clusters, consistent with density-functional theory calculations. Quantitative agreement, however, is only obtained if radiative cooling is included in the analysis. All clusters are found to radiate on microsecond timescales, suggesting recurrent fluorescence as the dominant photon emission process.