Structural, Mössbauer, and Raman studies of the (Y,Ce)2Sr2Cu2FeO8+y compound

 
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1995 (EN)
Structural, Mössbauer, and Raman studies of the (Y,Ce)2Sr2Cu2FeO8+y compound (EN)

Simopoulos, A (EN)
Kallias, G (EN)
Poulakis, N (EN)
Niarchos, D (EN)
Pissas, M (EN)
Liarokapis, E (EN)

N/A (EN)

The crystal structure and physical properties for (Y,Ce)2Sr2Cu2FeO8+y compound are reported using Rietveld-refinement of x-ray powder-diffraction data, dc magnetic susceptibility, Mössbauer, and Raman spectroscopy measurements. Mössbauer data can be analyzed with three components. Component A is attributed to Fe3+ (S=5/2) ions in the Cu(2) site. Component B is attributed to Fe3+ (S=3/2) ions in the Cu(1) plane and appears only in the oxygen saturated sample. For the reduced sample, component B transforms to component Dr, which has a lower oxygen coordination number with respect to that of component B. The Raman lines are assigned to definite atomic vibrations in close comparison with other compounds of similar structure. © 1995 The American Physical Society. (EN)

journalArticle

PHONONS (EN)
SUPERCONDUCTIVITY (EN)
CRYSTAL-STRUCTURE (EN)
MAGNETIZATION (EN)
SCATTERING (EN)

Εθνικό Μετσόβιο Πολυτεχνείο (EL)
National Technical University of Athens (EN)

Physical Review B (EN)

1995


AMERICAN PHYSICAL SOC (EN)



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