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The permanent electric dipole moments and magnetic hyperfine interaction in the A 2Π state of yttrium monosulfide

✍ Scribed by T.C. Steimle; Wilton Virgo

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
228 KB
Volume
221
Category
Article
ISSN
0022-2852

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✦ Synopsis

The optical Stark effect in the ð0; 0Þ A 2 P-X 2 R þ band systems of a yttrium monosulfide, YS, supersonic molecular beam sample have been analyzed to produce the magnitude of the permanent electric dipole moments, jlj, for the A 2 P 3=2 , and A 2 P 1=2 states of 5.9(2), and 6.8(1) D, respectively. Small splittings in the field free A 2 P 3=2 -X 2 R þ and A 2 P 1=2 -X 2 R þ spectra were analyzed to produce the magnetic hyperfine spectroscopic parameters a ¼ À36ð6Þ, c ¼ 111ð7Þ, and d ¼ À107ð6Þ MHz for the A 2 P state. Transition frequencies of the low rotational lines in the ð0; 0Þ A 2 P r -X 2 R þ band system were measured and analyzed to produce the first complete set of fine structure parameters for the A 2 P r state. A comparison with YO and other isovalent molecules is made.

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