Pal, A. J. ; Mandal, P. ; Poddar, A. ; Ghosh, B. (1991) Infrared studies of Bi2Sr2Ca1-xYxCu2O8+δ and correlation between Cu-O distance derived from X-ray and IR Physica C: Superconductivity, 181 (1-3). pp. 186-190. ISSN 0921-4534
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Official URL: http://www.sciencedirect.com/science/article/pii/0...
Related URL: http://dx.doi.org/10.1016/0921-4534(91)90353-Z
Abstract
Absorption spectra of well-characterized Bi2Sr2Ca1-xYxCu2O8+δ ceramic samples have been studied in the middle and far infrared region. Assignment of different vibrational frequencies have been revisited in the framework of Y substitution in the Ca site which creates screening and a shift of different vibrations apart from the metal-to-insulator transition. The estimated values of the Cu-O distance (and thus the a parameter of the unit cell) from the Cu-O stretching vibration frequency and from X-ray diffraction data have been compared.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 65723 |
| Deposited On: | 18 Oct 2011 08:52 |
| Last Modified: | 18 Oct 2011 08:52 |
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