Shivakumara, C. ; Hegde, M. S. ; Subbanna, G. N. (1996) Synthesis, structure and IR absorption studies of LnBaCuCoO5 (Ln=rare earth) oxides Bulletin of Materials Science, 19 (4). pp. 607-613. ISSN 0250-4707
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Official URL: http://www.ias.ac.in/j_archive/bms/19/4/607-613/vi...
Related URL: http://dx.doi.org/10.1007/BF02745150
Abstract
A series of oxides LnBaCuCoO5 (Ln=Pr, Nd, Sm, Dy, Gd, Ho and Er) have been synthesized by ceramic method. The oxides crystallize in a tetragonal structure, isostructural to YBaCuCoO5. All the oxides in the series are semiconducting. IR spectra of these oxides show distinct absorption bands at 630 cm-1, 550 cm-1 and 330 cm-1 which are assigned to E, A2 and A1 modes respectively. Doping of holes in these oxides, by calcium substitution in Er1-xCax BaCuCoO5-x (up to x ≈ 0.3) was done but, these oxides did not show metallic behaviour.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Indian Academy of Sciences. |
| Keywords: | Ceramic Method; Rare Earth Oxides; IR Spectra |
| ID Code: | 16489 |
| Deposited On: | 15 Nov 2010 09:33 |
| Last Modified: | 03 Jun 2011 08:31 |
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