Study of Phase Purity and Magnetic Properties of Eu1.86Ce0.14CuO4 Synthesized by Solid-State Method without Annealing Process Yuyu R. Tayubi, Selly Feranie, Wiendartun
Department of Physics Education, Faculty of Mathematics and Natural Sciences, Universitas Pendidikan Indonesia
Abstract
The samples of Eu2-xCexCuO4 (ECCO) with x=0.14 (Eu1.86Ce0.14CuO4) has been synthesized by the solid reaction method without annealing in order to study the purity and magnetic properties of ECCO samples. The sample is covered with CuO to prevent excess oxygen entering the sample. The purity and magnetic propertirs were investigated by x-ray Diffraction (XRD) and susecptibility measurements. From the XRD analysis, it was found that the purity of ECCO phase was 84.8% with tetragonal structure of T^ for x = 0.14. These results show that the synthesis method with CuO covering has succeeded in synthesizing materials with high purity. From the susceptibility measurements, the trace of superconductors was not observed in sample. It shows that the Eu1.86Ce0.14CuO4 material has paramagnetic properties. It is probably the existence of excess oxygen, which was not fully absorbed by CuO Covering.
Keywords: Crystal structure, CuO covering, Eu1.86Ce0.14CuO4, Magnetic susceptibilitas, Phase purity.
