Ionization potential of radium monofluoride

The ionization potential (IP) of radium monofluoride (RaF) was measured to be 4.969(2)[10] eV, revealing a relativistic enhancement in the series of alkaline earth monofluorides. The results are in agreement with a relativistic coupled-cluster prediction of 4.969[7] eV, incorporating up to quantum e...

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Published inarXiv.org
Main Authors Wilkins, S G, Perrett, H A, Udrescu, S M, Kyuberis, A A, Pašteka, L F, M Au, Belošević, I, Berger, R, Binnersley, C L, Bissell, M L, Borschevsky, A, Breier, A A, Brinson, A J, Chrysalidis, K, Cocolios, T E, Cooper, B S, de Groote, R P, Dorne, A, Eliav, E, Field, R W, Flanagan, K T, Franchoo, S, Garcia Ruiz, R F, Gaul, K, Geldhof, S, Giesen, T F, Gustafsson, F P, Hanstorp, D, Heinke, R, Koszorús, Á, Kujanpää, S, Lalanne, L, Neyens, G, Nichols, M, Reilly, J R, Ricketts, C M, Rothe, S, Sunaga, A, van den Borne, B, Vernon, A R, Wang, Q, Wessolek, J, Wienholtz, F, Yang, X F, Zhou, Y, Zülch, C
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 21.10.2024
Subjects
Diatomic molecules
Energy of dissociation
Free energy
Heat of formation
Interrogation
Ionization potentials
Quantum electrodynamics
Radium
Relativistic effects
Rydberg states
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Summary:The ionization potential (IP) of radium monofluoride (RaF) was measured to be 4.969(2)[10] eV, revealing a relativistic enhancement in the series of alkaline earth monofluorides. The results are in agreement with a relativistic coupled-cluster prediction of 4.969[7] eV, incorporating up to quantum electrodynamics corrections. Using the same computational methodology, an improved calculation for the dissociation energy (\(D_{0}\)) of 5.54[5] eV is presented. This confirms that radium monofluoride joins the small group of diatomic molecules for which \(D_{0}>\mathrm{IP}\), paving the way for precision control and interrogation of its Rydberg states.
ISSN:2331-8422