Efeito Casimir em placas de plasma e a energia de condensação do supercondutor do tipo (Hg, Pb)Ba2-xSrxCa2Cu3O8+

Abstract

In this work a study about the behavior of the critical temperature (Tc ) in ( ) 2- 2 3 8+d Hg,Pb Ba xSrxCa Cu O superconductors (Hg–1223) has been done. It is suggested that the condensation energy of the superconductor is due to Casimir energy of the CuO plans, considering these plans as thin plasma sheets. From this hypothesis one can relate de transition temperature dependence with some crystalline lattice variables, and universal constants as well, and among these variables, there is the effective mass correction parameter of the Cooper pairs. The desired goal here is to obtain an approximation of Tc for the family of the ceramics mentioned above in comparison to experimental data, and with arbitrary adjusted values of a , but in a concise and plausible way