Low Temperature Physics: 36, 417 (2010); https://doi.org/10.1063/1.3432260 (7 pages)
Физика Низких Температур: Том 36, Выпуск 5 (Май 2010), c. 524-531    ( к оглавлению , назад )

Crystal field splitting on DS transitions of atomic

O. Byrne, M.A. Collier, M.C. Ryan, and J.G. McCaffrey

Department of Chemistry, National University of Ireland, Maynooth Maynooth, County Kildare, Ireland
E-mail: john.mccaffrey@nuim.ie

Received December 16, 2009


Narrow excitation features present on the [Ar]3d64s1 a6D(J = 9/2 – 1/2) ← [Ar]3d54s2 a6S1/2 transitions of manganese atoms isolated in solid Kr are analyzed within the framework of weak crystal field splitting. Use of the Wp optical lineshape function allowed identification of multiple zero-phonon lines for individual spin-orbit J states of the a6Da6S transition recorded with laser-induced excitation spectroscopy. Excellent agreement exists between the predicted crystal field splitting patterns for the J levels of the a6D state isolated in the «red» tetravacancy site of solid Kr. The tetrahedral crystal field of the «red» trapping site splits J > 3/2 levels of the a6DJ and a4D7/2 states by approximately 30 cm–1. This report represents the first definitive evidence of crystal field splitting, induced by the weak van der Waals interactions between a neutral metal atom and the rare gas atoms surrounding it in a well defined solid state site.

PACS: 31.70.Dk Environmental and solvent effects;
PACS: 78.40.–q Absorption and reflection spectra: visible and ultraviolet;
PACS: 78.55.–m Photoluminescence, properties and materials.

Ключевые слова: solid Kr, optical lineshape function, D ↔ S transitions.