21 September J. Chem. Phys., 133 (2010) 114509 goar | Uncategorized DOI:10.1063/1.3475562. G. Sánchez-Sanz, L. Seijo, and Z. Barandiarán. Yb2+ -doped SrCl2 Electronic structure of impurity states and impurity-trapped excitons.