Irreversibility Curve on Y1_xLuxBa2Cu3O7_δ (x=0.4, 0.5 and 0.6) superconducting

21st Latin American Symposium on Solid State Physics

Grimaldos, J. F. Cepeda^1 ; Chiquillo, M.V.^2 ; Supelano G, I.^1 ; Martínez B, D.^2,3 ; Santos, A. Sarmiento^1 ; Vargas, C. A. Parra^2

Universidad Pedagógica y Tecnológica de Colombia, Grupo de Superficies Electroquímica y Corrosión, Tunja, Colombia^1

Universidad Pedagógica y Tecnológica de Colombia, Grupo Física de Materiales, Tunja, Colombia^2

Departamento de Ciência de Materiais, Universidade Federal de Pernambuco, 50740-560, Recife PE, Brazil^3

关键词: Critical temperatures;    Field cooled;    High Tc superconductors;    Irreversibility lines;    Polycrystalline samples;    Solid state reaction method;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/480/1/012036/pdf
DOI  :  10.1088/1742-6596/480/1/012036

来源: IOP

【 摘 要 】

The irreversibility line in the H-T plane divides the irreversible and reversible behaviour of the magnetization which is of importance for the characterization of high Tcsuperconductors. In this work, we report the production of Y1-XLuXBa2Cu3O7-δ(X=0.4, 0.5 and 0.6) superconducting system using the usual solid state reaction method. The irreversibility line H-T plane for the Y1-XLuXBa2Cu3O7-δpolycrystalline sample was investigated. The curves of magnetization ZFC (cero field cooled)- FC (field cooled) were measured in magnetic fields between 100 Oe and 4000 Oe, and allowed to obtain the values for irreversibility and critical temperatures.