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Partial subistiution of Hg on Tl and study the Structure and Electrical Properties of Tlx-2HgxBa2Ca2Cu3O10+δ superconductor

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Abstract

Superconductivity was first observed in mercury by the Dutch physicist Hieke Kamerlingh Onnes in 1911 [1]. For along time , it have been known from conductivity experiments that the electrical resistance of a metal decreased with temperature. Onnes was measuring the variation of the electrical resistance of mercury with temperature, when he was amazed to find that at 4.2K the resistance suddenly dropped to zero. He called this effect superconductivity and the temperature at which it occurs is known as the critical transition temperature at which it occurs is known as known as the critical transition temperature (Tc).

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2012 (1)