论文信息 - Absorption spectrum, energy levels, and crystal‐field parameters of Tm3+:LaCl3

Absorption spectrum, energy levels, and crystal‐field parameters of Tm3+:LaCl3

Optical absorption spectra and energy levels of Tm3+ in LaCl3 are reported. A crystal‐field Hamiltonian of C3h symmetry is used to fit the data; a best fit rms deviation of 3.0 cm−1 is obtained between 27 experimental and theoretical energy levels with the following crystal field parameters: B20=226.9, B40=−241.0, B60=−423.6, and B66=256.3 (all in cm−1). Results obtained here for Tm3+ are compared with results on other lanthanides in LaCl3. Point–charge and dipole lattice sums are performed and compared with phenomenological crystal‐field components obtained from Bnm of various lanthanides in LaCl3.

R. Leavitt | J. B. Gruber | C. Morrison

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