Effect of gamma Irradiation on the TlBa2Ca2Cu3O9-δ Superconducting Properties.

Authors :: Kadhim, Bahjat B.
Khaleel, Imad H.
Hussein, Bushra H.
Jasim, Kareem Ail
Shaban, Auday H.
AL-Maiyaly, Bushra K. H.
Mahdi, Shatha H.
Source :: AIP Conference Proceedings; 2018, Vol. 1968 Issue 1, p1-4, 4p
Publication Year :: 2018
Abstract: The aim of the present work is studing the influence of gamma irradiation on the superconducting properties of TlBr<subscript>2</subscript>Ca<subscript>2</subscript>Cu<subscript>3</subscript>O<subscript>9</subscript>-δ compound, at room temperature by using 137Cs source with dose 10,20 and 30 MRad. Specimen has been prepared by solid state reaction process. Superconductor properties and X-ray diffraction (XRD) studied before and after irradiation. It is showed that our compound has tetragonal structure correspond to the 1223 phase with decreasing of the ratio c/a due to gamma irradiation. In addition, the transition temperature (Tc(on)&Tc(off)) were decreasing from 110 to 85 K, and 129 to 117 K respectivelya, when the dose increasing from 0 to 20 MRad and increase Tc(on) to 119 K &Tc(off 132 for dose 30 MRad. [ABSTRACT FROM AUTHOR]