Please use this identifier to cite or link to this item:
https://dspace.iiti.ac.in/handle/123456789/7680
| Title: | Iron isotope effect in SmFeAsO0.65 and SmFeAsO0.77H0.12 superconductors: A Raman study |
| Authors: | Shirage, Parasharam Maruti |
| Keywords: | Carrier mobility;Electron-phonon interactions;High temperature superconductors;Iron;Light scattering;Phonons;Superconducting materials;Electron phonon couplings;Inelastic light scattering;Iron isotopes;Iron-based superconductors;Isotopic substitution;Pairing mechanism;Phonon mode;Raman studies;Isotopes |
| Issue Date: | 2016 |
| Publisher: | American Institute of Physics Inc. |
| Citation: | Singh, B., Shirage, P. M., Iyo, A., & Kumar, P. (2016). Iron isotope effect in SmFeAsO0.65 and SmFeAsO0.77H0.12 superconductors: A raman study. AIP Advances, 6(10) doi:10.1063/1.4966256 |
| Abstract: | We report the inelastic light scattering studies on SmFeAsO0.65 and SmFeAsO0.77H0.12 with iron isotopes namely 54Fe and 57Fe. In both of these systems under investigation we observed a significant shift in the frequency of the phonon modes associated with the displacement of Fe atoms around ∼ 200 cm-1. The observed shift in the Fe mode (B1g) for SmFeAsO0.65 is ∼ 1.4 % and lower in case of SmFeAsO0.77H0.12, which is ∼ 0.65 %, attributed to the lower percentage of isotopic substitution in case of SmFeAsO0.77H0.12. Our study reveals the significant iron isotope effect in these systems hinting towards the crucial role of electron-phonon coupling in the pairing mechanism of iron based superconductors. © 2016 Author(s). |
| URI: | https://doi.org/10.1063/1.4966256 https://dspace.iiti.ac.in/handle/123456789/7680 |
| ISSN: | 2158-3226 |
| Type of Material: | Journal Article |
| Appears in Collections: | Department of Metallurgical Engineering and Materials Sciences |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
Altmetric Badge: