Abstract
Structural and magnetic properties were studied in a series of single-phased polycrystalline EuCr1-xFexO3 (0 ≤ x ≤ 0.6) ceramic samples which were successfully synthesized by Pechini method. The dc magnetic measurements revealed that Fe-doping in EuCrO3 suppresses the Cr3+−Cr3+ canted antiferromagnetic interaction continuously as the doping concentration x increases in the range from 0 to 0.55. The sample at x = 0.55 shows a notable magnetic phenomenon in which a complete sign reversal of the magnetization from positive to negative is observed at the compensation temperature (∼200 K). This feature can be called as negative magnetization which is attributed to the competition between Cr3+−Cr3+ and Cr3+−Fe3+ interactions. The applied magnetic field-assisted switching effect is obtained at 200 K by simply varying the magnitude of the field. The negative magnetization disappears at high doping concentration (x = 0.6) which is due to the possible Fe3+-Fe3+ interaction in the system.
Published Version
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