Magnetic properties of Mn-doped CuCrO2

Author: Zviadi Zarkua
Keywords: delafossite, magnetic properties, spinel, EPR, XRD, ferromagnetic
Annotation:

Given samples CuCr1-xMnxO2 x= 0.05/0.01/0.15 were synthesized using Solid State Reaction Method in air and argon atmosphere. Samples were heated in conventional thermal and Photonic radiation Ovens. Afterwards they were examined by XRD- method which showed successful formation of delafossite phase. Magnetic properties were investigated by Vibrating Sample Magnetometer, which displayed that we have ferromagnetic order in delafossite structure (which itself is anti-ferromagnetic). Microscopic characteristics were studied by EPR spectroscopy. Based on the results we can assume that by doping Mn into delafossite, new ferromagnetic phase is obtained. This new phase can be linked to the formation of Spinel (CuMn2O¬¬4) into delafossite structure.