Matrix effect on the vibronic state of an atom embedded in a Solid Para-H2

28th International Conference on Photonic, Electronic and Atomic Collisions

Nakagawa, S.T.^1 ; Sakane, G.^1 ; Senju, Y.^1 ; Kawaguchi, K.^2

Graduate School of Science, Okayama University of Science, Okayama

700-0005, Japan^1

Graduate School of Natural Science and Technology, Okayama University, Okayama

700-8530, Japan^2

关键词: Ab initio molecular orbital calculation;    Emission spectrums;    Excitation spectrum;    Liquid helium temperature;    Matrix effects;    Quantum solids;    Vibronic state;    Visible region;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/488/15/152001/pdf
DOI  :  10.1088/1742-6596/488/15/152001

来源: IOP

【 摘 要 】

We have examined the matrix effect on the excitation spectra of Xe atom that is embedded in a solid state para-hydrogen (p-H2)nat liquid helium temperature, making use of the ab-initio molecular orbital calculation. The crystal structure of the solid (p-H2)nis hexagonal (hcp) and is known to be a quantum solid that may yield almost free ligand field for an atom located at a lattice point. However, the vibronic states made of p-H2molecules coupled with the excited states of Xe atoms, which reflected significant matrix effect on the absorption spectrum in the ultraviolet-visible region. Similar effect on the emission spectra was also studied.