期刊
PHYSICAL REVIEW B
卷 80, 期 11, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.80.115105
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资金
- New Zealand Industrial Research Ltd. [DA3.02 FTIR]
We report on the observation of pseudoquadrupole splittings of sharp infrared-absorption lines of CaF2:Tb3+. These splittings are large enough to be directly observed because the Tb3+ electronic ground levels consists of two singlets separated by only 0.18 cm(-1) for the F- C-4v center. Both the hyperfine splittings and measured Zeeman splittings for F- C-4v centers in CaF2:Tb3+ and SrF2:Tb3+ can be accounted for using wave functions derived from a previously published crystal-field analysis of experimental energy levels.
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