The cooperative Jahn-Teller ordering investigation by absorption spectra in $KDy(Mo{O}_4{)}_2$

N. M. Nesterenko, Yu. Kharchenko

Absorption spectra fine structure of $KDy(Mo{O}_4{)}_2$ in the region of cooperative Jahn-Teller type ordering was studied. Temperature anomalies in the spectra occurring at phase tran…