SUBSTITUTIONS BA2+/LN3+ IN GDLNXBA2-XCU3O7RZ (LN-LA, PR, ND, SM, EU, GD) 0D X D 0,6 SYSTEMS
UDC 546. 65' 56' 431
Keywords:
high temperature superconductors, rare-earth elements, sol-gel synthesisAbstract
Ceramic HTSC samples of GdLnxBa2-xCu3O7±z (Ln-La, Pr, Nd, Sm, Eu, Gd 0£ x £ 0,6) were synthesized. Dependence of parameters and kinds of lattice symmetry and oxygen stoichiometry from the displacement degree x was studied. It's adjusted that for solid solutions GdLnxBa2-xCu3O7±z (Ln-La, Pr, Nd, Sm, Eu, Gd) just substances with x=0 and x=0.05 have superconductivity properties in temperature interval 77–300 K.
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