Lodhi, Pavitra Devi and Awana, V. P. S. and Kaurav, Netram (2017) Raman and X-ray diffraction studies of superconducting FeTe1-xSex compounds. Journal of Physics: Conference Series, 836. pp. 1-5. ISSN 1742-6588
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Abstract
Iron-based superconducting layered compounds have the second highest transition temperature after cuprate superconductors. Their discovery is a milestone in the history of high-temperature superconductivity and will have profound implications for high-temperature superconducting mechanism as well as industrial applications. We have measured X-ray diffraction and Raman spectra of poly-crystalline FeTe1-xSex samples with x = 0.0, 0.5 and 1 at room temperature. X-ray profile of FeTe and FeTe0.5Se0.5 confirmed the primitive tetragonal unit cell. FeSe is found to be in double phase with tetragonal phase (about 66.62%) and orthorhombic (33.38%). A(1g) and B-1g phonon modes were observed in Raman spectra. At room temperature, these lines are located at 95 and 130 cm(-1) for FeTe, 93 and 129 cm(-1) for FeTe (0.5) Se (0.5) and 93 and 129 cm(-1) for FeSe samples.
| Item Type: | Article |
|---|---|
| Additional Information: | Copyright for this article belongs to M\S IOP Publishing. |
| Subjects: | Physics > Physics of Fluids and Plasmas Physics |
| Divisions: | UNSPECIFIED |
| Depositing User: | Users 27 not found. |
| Date Deposited: | 18 Dec 2018 11:57 |
| Last Modified: | 18 Dec 2018 11:57 |
| URI: | http://npl.csircentral.net/id/eprint/2831 |
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