f-fandf-dtransition interference inSm 2 + :SrFCl
Author(s) -
Raivo Jaaniso,
H. Bill
Publication year - 1991
Publication title -
physical review. b, condensed matter
Language(s) - English
Resource type - Journals
eISSN - 1095-3795
pISSN - 0163-1829
DOI - 10.1103/physrevb.44.2389
Subject(s) - physics , excited state , order (exchange) , coupling (piping) , crystallography , state (computer science) , combinatorics , atomic physics , condensed matter physics , materials science , algorithm , chemistry , mathematics , finance , economics , metallurgy
The 5D3(4f6)-7F0(4f6) transition of Sm2+ in SrFCl is found to be anomalously strong and it exhibits an asymmetric line shape, which is interpreted in terms of resonant interaction between the 5D3 excited state and the vibronic levels of a low-lying 4f55d electronic state. The electronic coupling strength is estimated to be of the order of 100 cm-1. The symmetry species of interacting levels are identified, and the possibility of an E×(b1+b2) type of Jahn-Teller effect in the 4f55d state is discussed
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