Abstract
The crystal chemistry and superconductivity have been investigated for compounds of the type of REBaSrCu3Ox (RE ≡ La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Y, Ho, Er, Tm, Lu) and MA2 RECu2O8−y(M ≡ Nb or Ta, A ≡ Ba or Sr and RE ≡ Pr or Sm). The powder X-ray diffraction analysis of REBaSrCu3Ox revealed a structural phase transition from tetragonal to orthorhombic, when the ionic radius of the RE3+ decreases. The MSr2RECu2O8−y compounds crystallized in a tetragonal structure similar to that of Y-123.
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© 1993 Springer-Verlag Berlin, Heidelberg
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Wang, X.Z., Hellebrand, B. (1993). Crystal Chemistry and Superconductivity in M(Ba1−ySry)2RECu2Ox . In: Kuzmany, H., Mehring, M., Fink, J. (eds) Electronic Properties of High-Tc Superconductors. Springer Series in Solid-State Sciences, vol 113. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-84865-0_4
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DOI: https://doi.org/10.1007/978-3-642-84865-0_4
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