Magnetic and magnetoelastic properties of a series of rare-earth zircons exhibiting the cooperative Jahn-Teller (JT) effect have been systematically studied. Typical anomalies of magnetic susceptibility, magnetization, and magnetic anisotropy in the basal plane have been observed, which are caused by the JT interaction and the cooperative JT effect. It is shown that the magnetoelastic properties of rare-earth zircons become much more pronounced due to JT correlations. The behavior of these characteristics in crystals differs qualitatively depending on whether the JT correlations are suppressed or enhanced by the magnetic field.
Department of General Physics for Natural Science Faculties, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
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