Spectroscopy of yttrium dimers in argon matrices
Low Temperature Physics, ISSN: 1063-777X, Vol: 26, Issue: 9-10, Page: 752-755
2000
- 26Citations
- 9Captures
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Article Description
The absorption and resonance Raman spectra of yttrium dimers (Y) in argon matrices are measured for the first time. The absorption spectrum (scattering depletion spectrum SDS) shows a weak, broad transition centered near 485 nm. Resonance Raman spectra obtained by exciting into this absorption band with several visible laser lines (465.5-496.5 nm) give a single, sharp progression with up to ten Stokes transitions. These data give ω = 184.4(4) cm, with ωx = 0.30(3) cm, leading to a spectroscopic dissociation energy of D = 3.5(4) eV. Comparison of our results with several ab initio calculations adds confirmation to the assignment of the ground state of Y to be the Σ state. © 2000 American Institute of Physics.
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