http://www.cnr.it/ontology/cnr/individuo/prodotto/ID207735
Effect of Ru substitution on atomic displacements in the layered SmFe1-xRuxAsO0.85F0.15 superconductor (Articolo in rivista)
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- Effect of Ru substitution on atomic displacements in the layered SmFe1-xRuxAsO0.85F0.15 superconductor (Articolo in rivista) (literal)
- Anno
- 2012-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1103/PhysRevB.85.214530 (literal)
- Alternative label
A. Iadecola1, B. Joseph1, L. Simonelli2, L. Maugeri1, M. Fratini1, A. Martinelli3, A. Palenzona3, M. Putti3, and N. L. Saini1 (2012)
Effect of Ru substitution on atomic displacements in the layered SmFe1-xRuxAsO0.85F0.15 superconductor
in Physical review. B, Condensed matter and materials physics
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- A. Iadecola1, B. Joseph1, L. Simonelli2, L. Maugeri1, M. Fratini1, A. Martinelli3, A. Palenzona3, M. Putti3, and N. L. Saini1 (literal)
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- 1Dipartimento di Fisica, Universitá di Roma \"La Sapienza\" - P. le Aldo Moro 2, 00185 Roma, Italy
2European Synchrotron Radiation Facility, BP220, F-38043 Grenoble Cedex, France
3CNR-SPIN and Universitá di Genova, via Dodecaneso 33, 16146 Genova, Italy (literal)
- Titolo
- Effect of Ru substitution on atomic displacements in the layered SmFe1-xRuxAsO0.85F0.15 superconductor (literal)
- Abstract
- The effect of Ru substitution on the local structure of layered SmFe1-xRuxAsO0.85F0.15 superconductor has been studied by As K- and Sm L3-edge x-ray-absorption spectroscopy. The extended x-ray-absorption fine-structure measurements reveal distinct Fe-As and Ru-As bond lengths in the Ru substituted samples with the latter being ~0.03 Å longer. Local disorder induced by the Ru substitution is mainly confined to the FeAs layer while the SmO spacer layer sustains a relative order, consistent with the x-ray-absorption near-edge structure spectra. The results suggest that, in addition to the order/disorder in the active FeAs layer, its coupling to the rare-earth-oxygen spacer layer needs to be considered for describing the electronic properties of these layered superconductors. (literal)
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