by Simonelli, L., Al-Zein, A., Sala, M. Moretti, Joseph, B. and Iadecola, A., Bendele, M., Martinelli, A., Palenzona, A. and Putti, M., Monaco, G. and Saini, N. L.
Abstract:
We have studied the electronic and magnetic properties of SmFe1-xRuxAsO0.85F0.15 (x = 0, 0.05, 0.25, 0.33, 0.5) by high-resolution x-ray absorption and x-ray emission spectroscopy. The local Fe magnetic moment (mu) tends to decrease for a small Ru substitution, but it shows a clear increase with further substitution. It appears that impurity scattering prevails in reducing the mu with small Ru substitution due to an extended Ru d-band. A nanoscale phase separation, that decouples the FeAs layers from the spacer layers, drives the increase of mu at higher Ru substitution. The results provide important information on nanoscale phase separation due to isoelectronic substitution in the active layers of iron-based 1111-superconductors and its effect on the local magnetic properties.
Reference:
Study of the electronic and magnetic properties as a function of isoelectronic substitution in SmFe1-xRuxAsO0.85F0.15 (Simonelli, L., Al-Zein, A., Sala, M. Moretti, Joseph, B. and Iadecola, A., Bendele, M., Martinelli, A., Palenzona, A. and Putti, M., Monaco, G. and Saini, N. L.), In JOURNAL OF PHYSICS-CONDENSED MATTER, IOP PUBLISHING LTD, volume 26, 2014.
Bibtex Entry:
@article{ ISI:000330719100020, Author = {Simonelli, L. and Al-Zein, A. and Sala, M. Moretti and Joseph, B. and Iadecola, A. and Bendele, M. and Martinelli, A. and Palenzona, A. and Putti, M. and Monaco, G. and Saini, N. L.}, Title = {{Study of the electronic and magnetic properties as a function of isoelectronic substitution in SmFe1-xRuxAsO0.85F0.15}}, Journal = {{JOURNAL OF PHYSICS-CONDENSED MATTER}}, Year = {{2014}}, Volume = {{26}}, Number = {{6}}, Month = {{FEB 12}}, Abstract = {{We have studied the electronic and magnetic properties of SmFe1-xRuxAsO0.85F0.15 (x = 0, 0.05, 0.25, 0.33, 0.5) by high-resolution x-ray absorption and x-ray emission spectroscopy. The local Fe magnetic moment (mu) tends to decrease for a small Ru substitution, but it shows a clear increase with further substitution. It appears that impurity scattering prevails in reducing the mu with small Ru substitution due to an extended Ru d-band. A nanoscale phase separation, that decouples the FeAs layers from the spacer layers, drives the increase of mu at higher Ru substitution. The results provide important information on nanoscale phase separation due to isoelectronic substitution in the active layers of iron-based 1111-superconductors and its effect on the local magnetic properties.}}, Publisher = {{IOP PUBLISHING LTD}}, Address = {{TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND}}, Type = {{Article}}, Language = {{English}}, Affiliation = {{Simonelli, L (Corresponding Author), European Synchrotron Radiat Facil, BP 220, F-38043 Grenoble, France. Simonelli, L.; Al-Zein, A.; Sala, M. Moretti; Monaco, G., European Synchrotron Radiat Facil, F-38043 Grenoble, France. Joseph, B.; Iadecola, A.; Bendele, M.; Saini, N. L., Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy. Iadecola, A., Elettra Sincrotrone Trieste SCpA, Trieste, Italy. Martinelli, A.; Palenzona, A.; Putti, M., CNR SPIN, I-16152 Genoa, Italy. Palenzona, A., Univ Genoa, Dipartimento Chim & Chim Ind, I-16146 Genoa, Italy. Putti, M., Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy.}}, DOI = {{10.1088/0953-8984/26/6/065701}}, Article-Number = {{065701}}, ISSN = {{0953-8984}}, EISSN = {{1361-648X}}, Research-Areas = {{Physics}}, Web-of-Science-Categories = {{Physics, Condensed Matter}}, Author-Email = {{Lsimonelli@cells.es}}, ResearcherID-Numbers = {{Sala, Marco Moretti/H-1034-2014 Martinelli, Alberto/AAW-9157-2020 Joseph, Boby/A-4797-2009 Putti, Marina/N-2844-2014 Zein, Ali Al/F-4393-2019 Monaco, Giulio/AAW-4387-2020 Moretti, Marco/AAF-9255-2019 Joseph, Boby/AAF-8305-2020 Simonelli, Laura/I-1963-2015 Bendele, Markus/M-4208-2013}}, ORCID-Numbers = {{Sala, Marco Moretti/0000-0002-9744-9976 Martinelli, Alberto/0000-0001-8391-3486 Joseph, Boby/0000-0002-3334-7540 Putti, Marina/0000-0002-4529-1708 Monaco, Giulio/0000-0003-2497-6422 Moretti, Marco/0000-0002-9744-9976 Joseph, Boby/0000-0002-3334-7540 Bendele, Markus/0000-0001-8122-9779}}, Number-of-Cited-References = {{40}}, Times-Cited = {{2}}, Usage-Count-Last-180-days = {{0}}, Usage-Count-Since-2013 = {{19}}, Journal-ISO = {{J. Phys.-Condes. Matter}}, Doc-Delivery-Number = {{304BB}}, Unique-ID = {{ISI:000330719100020}}, DA = {{2020-12-22}}, }
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