DOI: https://doi.org/10.30970/jps.01.273
SUPEREXCHANGE INTERACTION IN AIIBIV-BASED SEMIMAGNETIC SEMICONDUCTORS
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Journal of Physical Studies 1(2), 273–275 (1997)
DOI: https://doi.org/10.30970/jps.01.273 SUPEREXCHANGE INTERACTION IN AIIBIV-BASED SEMIMAGNETIC SEMICONDUCTORS |
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S .V. Melnychuk, Y. M. Mykhaylevsky,A. I. Savchhuk, D. M. Tryfonenko
Chernivtsi State University, Cair of Theoretical Physics
2 Kotsubinsky Str., Chernivtsi, UA-274012, Ukraine
In this report Mn$^{2+}$, Fe$^{2+}$ and Co$^{2+}$ ions in the ground state in the presence of crystalline field $T_d$ symmetry are considered. Superexchange interaction is performed via S, Se, Te ions. Theoretical calculations of the superexchange interaction integral $J_{NN}$ have been carried out within the framework of Racah technique. Experimental values of $J_{NN}$ for Cd$_{1-x}$Fe$_{x}$Te were obtained from the measurement of Faraday rotation temperature dependence.