Comparison of the superconducting critical transition temperature of LaBaCaCu3O7-d and NdBaCaCu3O7-d

Details Comparison of the superconducting critical transition temperature of LaBaCaCu3O7-d and NdBaCaCu3O7-d Comparison of the superconducting critical transition temperature of LaBaCaCu3O7-d and NdBaCaCu3O7-d

2003-11-25

arxiv.org/abs/cond-mat/0311565v1

Proceedings NCMA-2004

Physics

Condensed Matter

Superconductivity

4 pages including Figs, NCMA-2004, Dept. of Physics, Kurukshetra University, India

Scientific paper

LaBaCaCu3O7 (La:1113) and NdBaCaCu3O7 (Nd:1113) compounds are synthesized by solid state reaction route. Both compounds crystallize in tetragonal structure. Four probe resistivity measurements showed that superconducting transition temperature (Tc) is 73 K and 41 K respectively for La:1113 and Nd:1113 compounds. Considering the fact that for RE:123 (REBa2Cu3O7) compounds the Tc hardly depends upon the choice of RE (Rare earth, except Ce, Pr and Tb), the current nearly two fold increase in Tc of La:1113 when compared to Nd:1113, warrants serious discussion.

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