Abstract
Structural, transport, and spectroscopic properties of the ceramic superconductor La 2-x Sr 2 CuO 4 and YBa 2 Cu 3 O 7-σ have been investigated as a function of a Cu/Zn-substitution. An increase of the in-plane lattice parameters in a(b) direction and a decrease of the parameter in c direction is correlated to changes in vibrational frequencies for the in plane and out of plane Cu-O stretching modes. T c was found to decrease dramatically with increasing Zn-substitution. For the temperature dependence of the resistivity, Mott’s model for hopping conduction could be applied for the metallic, as well as for the semiconducting temperature and doping range.
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© 1988 Springer Science+Business Media New York
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Kuzmany, H., Matus, M., Faulques, E., Remschnig, K., Rogl, P. (1988). Transport and Spectroscopic Properties of Undoped and Zn-Doped Ceramic Superconductors. In: Weber, H.W. (eds) High-T c Superconductors. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-0846-9_14
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DOI: https://doi.org/10.1007/978-1-4899-0846-9_14
Publisher Name: Springer, Boston, MA
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