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Magnetic properties of the polycrystalline CuxFeCr1-xO2 in low field

BERDAN OZKURT1,* , OSMAN MURAT OZKENDİR1

Affiliation

  1. Mersin University, Tarsus Faculty of Technology , Dept. o f Energy Systems E ngineering, Tarsus, Turkey

Abstract

Electronic and magnetic properties of the polycrystalline samples with the general formula CuxFeCr1-xO2 (where 0 < x < 1) have been studied by various techniques. The effects of Cr3+ substitution on the magnetic properties of CuFeO2, as a starting material, were examined by hysteresis measurements. Magnetic studies of the samples were also supported by Magnetic Circular Dichroism measurements. All the samples were determined as showing a magnetic transition peak at characteristic Néel Temperature (TN) temperature from antiferromagnetic to paramagnetic ordering. Besides, the effect of high external magnetic field (H > 2T) to magnetic ordering were also studied and a change from paramagnetic to AFM at high magnetic fields observed. However, according to the decreasing Cu concentration in the sample, prominent changes both in intensity and in the anti-ferromagnetic ordering structure determined..

Keywords

Hysteresis, Circular dichroism, Magnetism, Magnetic materials.

Submitted at: Feb. 28, 2013
Accepted at: March 13, 2014

Citation

BERDAN OZKURT, OSMAN MURAT OZKENDİR, Magnetic properties of the polycrystalline CuxFeCr1-xO2 in low field, Journal of Optoelectronics and Advanced Materials Vol. 16, Iss. 3-4, pp. 322-326 (2014)