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

 
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Journal part (EN)
Scientific article (EN)
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)
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 (EN)
PHONONS (EN)
SUPERCONDUCTIVITY (EN)
CRYSTAL-STRUCTURE (EN)
MAGNETIZATION (EN)
Physics, Condensed Matter (EN)
SCATTERING (EN)
National Technical University of Athens
Digital Library of National Technical University of Athens | Dspace@NTUA
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
Ιδρυματικό Αποθετήριο
Δημοσιεύσεις μελών Δ.Ε.Π. σε περιοδικά
Physical Review B (EN)
English
1995 (EN)
http://hdl.handle.net/123456789/11670
10.1103/PhysRevB.52.10610 (EN)
14 (EN)
0163-1829 (EN)
10620 (EN)
52 (EN)
ISI:A1995TA42700101 (EN)
10610 (EN)
AMERICAN PHYSICAL SOC (EN)



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