The absorption spectrum of manganese atoms in solid argon at 4°K

Lee, E.L.; Gutmacher, R.G.

doi:10.1016/0022-3697(62)90223-8

Cited by 8 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some of the early experimental works on Mn atom isolated in RG matrixes ,, attributed the complexity of spectral features to the multiple trapping sites. Recent comprehensive absorption, excitation, and emission spectroscopic studies by McCaffrey and co-workers − provided evidence that Mn occupies two stable sites in Ar and Kr (red and blue, according to the shift of absorption bands).…”

Section: Atomic Mn In Rg Crystalsmentioning

confidence: 99%

“…Reproducible observations of multiple trapping sites and, especially, reversible temperature-induced interconversion between them favor the theoretical interpretation of Mn 2 embedded in the rare gases as a defect created in an ideal crystal rather than as a molecule dissolved in a finite cluster. Even more convincing arguments in favor of crystal model are provided by the comprehensive spectroscopic studies of a single Mn atom in solid rare gases. − They revealed not only the existence of distinct trapping sites but also the crystal field splitting patterns specific for different high-symmetry placements in the crystal lattice.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modeling of Manganese Atom and Dimer Isolated in Solid Rare Gases: Structure, Stability, and Effect on Spin Coupling

et al. 2017

View full text Add to dashboard Cite

Structures and energies of the trapping sites of manganese atom and dimer in solid Ar, Kr, and Xe are investigated within the classical model, which balances local distortion and long-range crystal order of the host and provides a means to estimate the relative site stabilities. The model is implemented with the additive pairwise potential field based on the ab initio and best empirical interatomic potential functions. In agreement with experiment, Mn single substitution (SS) and tetrahedral vacancy (TV) occupation are identified as stable for Ar and Kr, whereas the SS site is only found for Xe. Stable trapping sites of the weakly bound Mn dimer are shown to be the mergers of SS and/or TV atomic sites. For Ar, (SS + SS) and (TV + TV) sites are close in energy, whereas (SS + TV) site lies higher. The (SS + SS) accommodation is identified as the only stable site in Kr and Xe at low energies. The results are compared with the resonance Raman, electron spin resonance, and absorption spectroscopy data. Reproducing the numbers of stable sites, the calculations tend to underestimate the matrix effect on the dimer vibrational frequency and spin-spin coupling constant. Nonetheless, the level of agreement is found to be informative for tentative assignments of the complex features seen in Mn matrix isolation spectroscopy.

show abstract