Raman and X-ray diffraction studies of superconducting FeTe1-xSex compounds
IR@NPL: CSIR-National Physical Laboratory, New Delhi
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| Title |
Raman and X-ray diffraction studies of superconducting FeTe1-xSex compounds
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| Creator |
Lodhi, Pavitra Devi
Awana, V. P. S. Kaurav, Netram |
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| Subject |
Physics of Fluids and Plasmas
Physics |
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| Description |
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.
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| Publisher |
IOP Publishing
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| Date |
2017
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/2831/1/Raman%20and%20X%20ray%20diffraction%20studies%20of%20superconducting%20FeTe1xSex%20compounds.pdf
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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| Relation |
http://npl.csircentral.net/2831/
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