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Influence of magnetic ordering on the electrical properties of nickel ferrite-chromite (NiFeCrO$_4$) in the region of temperature compensation

L.G. Antoshina, E.N. Evstaf’eva

Moscow University Physics Bulletin 2008. 63. N 1. P. 72

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Annotation

An abrupt rise of the permittivity ɛ of nickel ferrite-chromite (NiFeCrO$_4$) is discovered near the compensation temperature $T_c$. The hysteresis character of this increase is demonstrated. Correlation between the magnetic and electrical properties of the ferrite under study is revealed. The observed anomalous behavior of permittivity is thought to be due to a direct overlap of the $t_{2g}$ orbitals of the Cr$^{3+}$ ions in octahedral nodes.

Authors
L.G. Antoshina, E.N. Evstaf’eva
Department of General Physics and Magnetoordered Media, Faculty of Physics, Moscow State University, Leninskie gory, Moscow, 119992, Russia
Issue 1, 2008

Moscow University Physics Bulletin

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