C. Kruger et al., EFFECT OF CARBONATE INCORPORATION ON THE STRUCTURAL AND SUPERCONDUCTING PROPERTIES OF THE DOUBLE-CHAIN COMPOUND Y2BA4CU7O(15-X), Zeitschrift fur anorganische und allgemeine Chemie, 620(11), 1994, pp. 1932-1936
Citations number
16
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Zeitschrift fur anorganische und allgemeine Chemie
Structural investigations on powder samples of Y2Ba4Cu7O15-x with diff
erent carbonate content have been performed. Powder x-ray Rietveld ref
inements showed the remarkable influence of carbonate incorporation on
the lattice parameters. Most important is the decrease of T-c with in
creasing carbonate content. We assign these effects to an incorporatio
n of the carbonate ion into the crystal lattice, copper vacancies at t
he Cu(1) position and a possible misorientation of the copper oxygen s
ingle chains. No change of the structure (e.g. superstructure) could b
e found.