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Spectroscopic study of the 22Σ+ and the 42Σ+ excited states of LiCa
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10.1063/1.4795205
/content/aip/journal/jcp/138/11/10.1063/1.4795205
http://aip.metastore.ingenta.com/content/aip/journal/jcp/138/11/10.1063/1.4795205

Figures

Image of FIG. 1.
FIG. 1.

The potential energy scheme of LiCa from theoretical calculations. 18 At the atomic asymptote first the electronic state of Li and then that of Ca are given. With black solid lines the 2Σ+ states are drawn, the black dashed lines correspond to 4Σ+ states, the red solid lines correspond to 2Π states, and red dashed lines to 4Π. The thick lines indicate the ground X state and the two excited doublet states studied in this paper. The quartet state drawn as thick dashed line may predissociate the states 42Σ+ and 32Π. The doublet and quartet Δ states are not regarded.

Image of FIG. 2.
FIG. 2.

Left panel: low resolution spectrum of the 22Σ+ → X2Σ+ emission of LiCa. The Li2 emission is also visible around 11 000 cm−1. A high resolution part of the (v′ = 0 − v″ = 0) band is shown in the right figure with an additional inset for the fully resolved rotational structure.

Image of FIG. 3.
FIG. 3.

The range of the rotational and vibrational quantum numbers of the 22Σ+ state (part a.) and the 42Σ+ state (part b.) in 7Li40Ca obtained in this work and Ref. 11 .

Tables

Generic image for table
Table I.

Pointwise representation of the potential energy curve for the 42Σ+ state of 7Li40Ca. For interpolation a natural cubic spline through all the listed points should be used. 26

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Table II.

Dunham coefficients for the 22Σ+ state in 7Li40Ca in cm−1.

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Table III.

Comparison of the main parameters of the X2Σ+, 22Σ+, and the 42Σ+ states in 7Li40Ca with data from the literature. The energy position of the potential minimum T e , the depth of the potential well D e , the vibrational and the rotational constants ω e and B e are in cm−1 and the internuclear distance at minimum of the potential well R e is in Å.

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/content/aip/journal/jcp/138/11/10.1063/1.4795205
2013-03-20
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Spectroscopic study of the 22Σ+ and the 42Σ+ excited states of LiCa
http://aip.metastore.ingenta.com/content/aip/journal/jcp/138/11/10.1063/1.4795205
10.1063/1.4795205
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