Study of High Temperature Superconductor – YBCO prepared by Photostimulation Method

Author: Baia Gelashvili
Keywords: superconductor, superconductivity, condensed
Annotation:

Superconductivity is a state of macroscopic body state, when electric current flows without resistivity. Superconductors can transmit electric energy with zero loss, which is of great practical use. In a superconductor, the resistance drops abruptly to zero when the material is cooled below its critical temperature. Transition to superconducting state in simple metals is observed near absolute zero temperature. For instance, Mercury has transition temperature 4.2 K, Lead 7.2 K, Niobium 9.3 K. Therefore it is very important to find materials with higher transition temperature above 35 K. In the world of high-tech industry, high temperature superconductors (HTSs) have a great potential for applications. That’s why there is an ongoing search for new methods of the fast synthesis of HTSs, which will significantly reduce the time of synthesis. Our object of study - YBa2Cu3O7 belongs to a high temperature superconducting class, with a critical temperature of Tc = 93K. The purpose of this project was to further develope and improve the new method for the fast synthesis of HTSs using light irradiation with a broad spectral range.