Current and Voltage Characterization of Yttrium Barium Copper Oxide Superconductor at and above Room Temperature

Abstract

Room temperature superconductors have been a dream for decades. Most researches in this area focused on cuprate superconductors. In this research, a prepared sample of YBCO (Y123) superconductor was studied to investigate its electrical properties at and above room temperature. Electrical measurements were carried out by a digital voltmeter and a multi-meter. An origin 9 program was used to analyze the results. The multi-meter showed presence of conductivity during the heating. The voltmeter showed proportionality of voltage with temperature. Room temperature measurements showed an existence of resistivity. Results analysis revealed exponential decay in conductivity of the sample with heating. Y123 sample exhibited semiconductor electrical characteristics.