Jahn-Teller effect in the4T2gstate of Mn4+in Cs2SiF6
- 28 December 1979
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 12 (24) , 5483-5488
- https://doi.org/10.1088/0022-3719/12/24/020
Abstract
High magnetic field, low-temperature Zeeman measurements of the 4A2g to 4T2g zero-phonon liners of Mn4+ in Cs2SiF6 are reported. The separation of the spin-orbit components of the 4T2g term are established and are found to be an order of magnitude smaller than that predicted by static crystal-field theory. The reduction is explained in terms of Ham quenching of the off-diagonal spin-orbit interaction arising from a strong Jahn-Teller effect. Zeeman polarisations are found to be fully consistent with this Jahn-Teller model. Difficulties are, however, encountered in giving a satisfactory account of the relative intensity of the zero-phonon transitions.Keywords
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