dc.contributor.author | Hacısalihoğlu, Muammer Yasin | |
dc.contributor.author | Paris, Eugenio | |
dc.contributor.author | Joseph, Boby | |
dc.contributor.author | Yanmaz, Ekrem | |
dc.contributor.author | Saini, Naurang L. | |
dc.date.accessioned | 2020-12-19T19:58:26Z | |
dc.date.available | 2020-12-19T19:58:26Z | |
dc.date.issued | 2015 | |
dc.identifier.citation | Hacisalihoglu, M. Y., Paris, E., Joseph, B., Yanmaz, E., & Saini, N. L. (2015). The nanoscale structure and unoccupied valence electronic states in FeSe1-xTex chalcogenides probed by X-ray absorption measurements. Physical chemistry chemical physics : PCCP, 17(27), 18131–18137. https://doi.org/10.1039/c5cp01740h | en_US |
dc.identifier.issn | 1463-9076 | |
dc.identifier.issn | 1463-9084 | |
dc.identifier.uri | https://doi.org/10.1039/c5cp01740h | |
dc.identifier.uri | https://hdl.handle.net/11436/2965 | |
dc.description | HACISALIHOGLU, Muammer Yasin/0000-0002-0795-2931; HACISALIHOGLU, Muammer Yasin Yasin/0000-0002-0795-2931; Joseph, Boby/0000-0002-3334-7540; Joseph, Boby/0000-0002-3334-7540 | en_US |
dc.description | WOS: 000357809300072 | en_US |
dc.description | PubMed: 26099493 | en_US |
dc.description.abstract | We have studied the nanoscale structure and unoccupied electronic states in FeSe1-xTex by a combined analysis of Se K, Te L-1 and Fe K-edges X-ray absorption measurements. Extended X-ray absorption fine structure (EXAFS) results show that iron-chalcogen (Fe-Se and Fe-Te) distances in ternary FeSe1-xTex are similar to those measured for binary FeSe and FeTe. the local Fe-Se/Te distances determined by different absorption edges fit well in the characteristic Z-plot of random alloys, providing unambiguous support to the inhomogeneous nanoscale structure of the ternary FeSe1-xTex system. X-ray absorption near-edge structure (XANES) spectra reveal a gradual evolution of the unoccupied valence electronic states as a function of Te-substitution in FeSe1-xTex. the Fe 3d-Se 4p/Te 5p hybridization is found to decrease with Te-substitution, accompanied by an increase in unoccupied Se 4p states and a decrease in unoccupied Te 5p states. the results are discussed in the frame of local inhomogeneity in the FeSe1-xTex system driven by random alloying of Se/Te atoms. | en_US |
dc.description.sponsorship | MIUR, ItalyMinistry of Education, Universities and Research (MIUR) [2012X3YFZ2] | en_US |
dc.description.sponsorship | The authors acknowledge the support and help from the Elettra staff during the experimental runs. One of us (M.Y.H.) would like to thank Sapienza University of Rome for the hospitality. M.Y.H. also acknowledges Professor Bernd Buchner, Drs Sabine Wurmehl, Michael Schulze, Christian Blum and IFF12 group members for the help and encouragement during the stay at IFW, Dresden for the sample preparations and characterizations. the work at the Sapienza University of Rome is supported by the PRIN2012 (grant no. 2012X3YFZ2) of MIUR, Italy. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Royal Soc Chemistry | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Random solid-solutions | en_US |
dc.subject | Fine-structure | en_US |
dc.subject | Local-structure | en_US |
dc.subject | Superconductivity | en_US |
dc.title | The nanoscale structure and unoccupied valence electronic states in FeSe1-xTex chalcogenides probed by X-ray absorption measurements | en_US |
dc.type | article | en_US |
dc.contributor.department | RTEÜ, Fen - Edebiyat Fakültesi, Fizik Bölümü | en_US |
dc.contributor.institutionauthor | Hacısalihoğlu, Muammer Yasin | |
dc.identifier.doi | 10.1039/c5cp01740h | |
dc.identifier.volume | 17 | en_US |
dc.identifier.issue | 27 | en_US |
dc.identifier.startpage | 18131 | en_US |
dc.identifier.endpage | 18137 | en_US |
dc.relation.journal | Physical Chemistry Chemical Physics | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |