Investigation of the Mn2+-F− distance for Mn2+ in fluoride lattices with hexahedral coordination |
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| Authors: | MT Barriuso M Moreno |
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| Institution: | Departamento de Física Teórica, Facultad de Ciencias, Universidad de Santander, Santander, Spain;Departamento de Optica y Estructura de la Materia, Facultad de Ciencias, Universidad de Santander, Santander, Spain |
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| Abstract: | The Mn2+-F? distance for Mn2+-doped CaF2, CdF2, SrF2 and BaF2 is derived from the experimental isotropic superhyperfine constant As. The results obtained indicate the existence of inwards relaxation processes in all these cases, as well as values of the Mn2+-F? distance which are ≈0.1 A larger than those found for systems with MnF6]4? units. This allows one to explain the low 10Dq values recently found by Alonso an Alcalá in CdF2: Mn2+. |
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