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Manganese Centers in Low Temperature X‐Irradiated CaF 2 :Mn
Author(s) -
Alcalá R.,
Alonso P. J.,
Lalinde G.,
Carretero A.
Publication year - 1980
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220980133
Subject(s) - manganese , irradiation , absorption (acoustics) , materials science , excitation , analytical chemistry (journal) , absorption spectroscopy , atomic physics , chemistry , optics , physics , metallurgy , chromatography , quantum mechanics , nuclear physics , composite material
The changes in the optical absorption and emission properties of CaF 2 :Mn after 15 and 80 K X‐irradiation are measured. A new absorption band is created at 450 nm. The same band appears in the excitation spectrum corresponding to Mn 2+ emission. Optical and thermal bleaching experiments combined with emission measurements indicate that the 450 nm band is due to Mn + created by X‐irradiation. The new band is tentatively assigned to the 7 S(3d 5 4s) → 7 P(3d 5 4p) electronic transition of Mn + in CaF 2 .