Lifetimes of bound excited states of Pt-
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Authors
Chartkunchand, K. C.
Kaminska, M.
Anderson, E. K.
Kristiansson, M. K.
Eklund, G.
Hole, O. M.
Nascimento, R. F.
Blom, M.
Bjorkhage, M.
Kallberg, A.
Issue Date
2017
Type
Article
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Abstract
Measurements of the radiative lifetimes of the two excited states of the platinum anion Pt- are presented. Pt- ions stored in the cryogenic ion storage ring DESIREE were photodetached at different photon wavelengths and the resulting yield of neutral Pt measured as a function of time was recorded. Analysis of the neutral decay curves show a 2.54 +/- 0.10 s lifetime for the higher-lying 5d(10)6(s) S-2(1/2) excited state and a lifetime in the range of 50-200 ms for the lower- lying 5d(9)6(s)(2) D-2(3/2) excited state. This is the first study to report the lifetime of a bound anion excited state with an electron configuration different from that of the anion ground state.
Description
Citation
KC Chartkunchand et al 2017 J. Phys.: Conf. Ser. 875 022051
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Creative Commons Attribution 3.0 Unported