Inhomogeneity and disorder are crucial in determining the physical properties of nanostructured systems in which several physical interactions are active among strongly correlated components. The specific role of short range Cu-O chain ordering on the raising of superconductivity in SmBa2Cu3O6+δ superconductors is discussed in this work. We have examined two Al-doped SmBa2Cu3O6+δ samples having equal aluminium and oxygen concentration but different mean Cu-O chain lengths. The long and short range structures of the two samples have been determined through the parallel real space and Q space analysis.

Modulation of Cu-O chain length in SmBa2Cu3O6+d, by Al doping and clustering / M. Scavini, M. Daldosso, M. Brunelli, C. Ferrero, C. Oliva. - In: ZEITSCHRIFT FUR KRISTALLOGRAPHIE. - ISSN 0044-2968. - 2007:suppl_26(2007), pp. 495-501. [10.1524/zkri.2007.2007.suppl_26.495]

Modulation of Cu-O chain length in SmBa2Cu3O6+d, by Al doping and clustering

M. Scavini
Primo
;
C. Oliva
Ultimo
2007

Abstract

Inhomogeneity and disorder are crucial in determining the physical properties of nanostructured systems in which several physical interactions are active among strongly correlated components. The specific role of short range Cu-O chain ordering on the raising of superconductivity in SmBa2Cu3O6+δ superconductors is discussed in this work. We have examined two Al-doped SmBa2Cu3O6+δ samples having equal aluminium and oxygen concentration but different mean Cu-O chain lengths. The long and short range structures of the two samples have been determined through the parallel real space and Q space analysis.
synchrotron X-ray powder diffraction ; pair distribution function analysis ; cuprate superconductors ; doping
Settore CHIM/02 - Chimica Fisica
2007
Article (author)
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/43691
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