A study on the effects of sample synthesis conditions on the particle size, structure, and magnetic properties of electron-doped cuprate superconductors of EuCeCuO (ECCO) nanoparticles has been carried out using transmission electron microscopy (TEM), X-ray diffraction (XRD) and the superconducting quantum interference device magnetometer (SQUID). The ECCO nanoparticles were prepared through the sol-gel method with various sintering and annealing temperatures. From TEM characterization, the average particle sizes are 87 nm and 103 nm for the sintering temperatures of 700 °C and 900 °C, respectively.
View Article and Find Full Text PDFElectron-doped superconducting cuprate of Eu Ce CuO has been studied in the whole doping regime from = 0.10-0.20 with reducing oxygen content to investigate the relation between the crystal structure and the hopping conduction in the normal state.
View Article and Find Full Text PDFThe nano-size effects of high- cuprate superconductor LaSrCuO with = 0.20 are investigated using X-ray diffractometry, Transmission electron microscopy, and muon-spin relaxation (SR). It is investigated whether an increase in the bond distance of Cu and O atoms in the conducting layer compared to those of the bulk state might affect its physical and magnetic properties.
View Article and Find Full Text PDF