Spectroscopy of yttrium dimers in argon matrices
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Spectroscopy of yttrium dimers in argon matrices
|
|
| Creator |
Fang, Li
Chen, Xiaoyu Shen, Xiaole Liu, Yifei Lindsay, D.M. Lombardi, John R. |
|
| Subject |
Low-Temperature Physics and Chemistry in Cryomatrice
|
|
| Description |
The absorption and resonance Raman spectra of yttrium dimers (Y₂) 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 ωe=184.4(4) cm⁻¹, with ωexe=0.30(3) cm⁻¹, leading to a spectroscopic dissociation energy of De=3.5(4) eV. Comparison of our results with several ab initio calculations adds confirmation to the assignment of the ground state of Y₂ to be the ¹Σg⁺ state.
|
|
| Date |
2018-01-17T20:01:38Z
2018-01-17T20:01:38Z 2000 |
|
| Type |
Article
|
|
| Identifier |
Spectroscopy of yttrium dimers in argon matrices / Li Fang, Xiaoyu Chen, Xiaole Shen, Yifei Liu, D.M. Lindsay, John R. Lombardi // Физика низких температур. — 2000. — Т. 26, № 9-10. — С. 1011-1015. — Бібліогр.: 23 назв. — англ.
0132-6414 PACS: 78.30.Hv, 71.55.Ht http://dspace.nbuv.gov.ua/handle/123456789/129223 |
|
| Language |
en
|
|
| Relation |
Физика низких температур
|
|
| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
|
|