An investigation of the ground state of Mn3+in MgO based on thermal conductivity measurements
- 28 January 1979
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 12 (2) , 303-310
- https://doi.org/10.1088/0022-3719/12/2/018
Abstract
Measurements of the thermal conductivity of MgO doped with manganese in the temperature range 0.4 to 300K indicate the existence of resonant scattering by Mn3+ ions at about 160 and 630 GHz. This cannot be accounted for by simple crystal-field theory but is consistent with the dynamic Jahn-Teller theory of Fletcher and Stevens (1969) with the parameters delta (tunnelling frequency)=480 GHz and D (spin-orbit splitting)=120 GHz. These frequencies and parameters are the same within experimental error as those determined for the isoelectronic Cr2+ in MgO using the same technique by Challis et al. (1978).Keywords
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