Pressure and doping dependent anisotropic compressibility of the SmFeAsO1 xFx(x = 0.0–0.17) system

dc.contributor.author	Καλαμιώτου, Μαρία	el
dc.contributor.author	Λαμπάκης, Δημήτριος A.	el
dc.contributor.author	Σιρανίδη, Ε.	el
dc.contributor.author	Karpinski, J.	en
dc.contributor.author	Zhigadlo, N.D.	en
dc.date.accessioned	2015-05-24T10:30:09Z
dc.date.available	2015-05-24T10:30:09Z
dc.date.issued	2015-05-24
dc.identifier.uri	http://hdl.handle.net/11400/11031
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://www.sciencedirect.com/science/article/pii/S0921453412003334	en
dc.subject	Hydrostatic pressure
dc.subject	Synchrotron powder diffraction
dc.subject	Υδροστατική πίεση
dc.subject	Synchrotron περίθλαση ενέργειας
dc.title	Pressure and doping dependent anisotropic compressibility of the SmFeAsO1 xFx(x = 0.0–0.17) system	en
heal.type	journalArticle
heal.classification	Technology
heal.classification	Biomedical engineering
heal.classification	Τεχνολογία
heal.classification	Βιοϊατρική τεχνολογία
heal.classificationURI	http://zbw.eu/stw/descriptor/10470-6
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85014237
heal.classificationURI	N/A-Τεχνολογία
heal.classificationURI	N/A-Βιοϊατρική τεχνολογία
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85063491
heal.contributorName	Λιαροκάπης, Ευθύμιος	el
heal.identifier.secondary	doi:10.1016/j.physc.2012.09.003
heal.language	en
heal.access	campus
heal.recordProvider	Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2012
heal.bibliographicCitation	Calamiotou, M., Lampakis, D., Siranidi, E., Karpinski, J., Zhigadlo, N., et al. (December 2012). Pressure and doping dependent anisotropic compressibility of the SmFeAsO1 xFx(x = 0.0–0.17) system. Physica C: Superconductivity. 483. pp. 136-139. Elsevier B.V: 2012. Available from: http://www.sciencedirect.com/science/article/pii/S0921453412003334 [Accessed 11/09/2012]	en
heal.abstract	We have measured by synchrotron powder diffraction the hydrostatic pressure dependence of the structural parameters of the SmFeAsO1−xFx for four doping values (from x = 0.0 to 0.17) in order to investigate lattice modifications that might be related to doping. The response of the lattice to the applied hydrostatic pressure is anisotropic with the linear compressibility kc, along the c-axis being a factor of 2.5 greater than the corresponding ka along the a-axis, while bulk modulus increases slightly in the optimally doped compound. The analysis of the data indicates that the anisotropic compressibility of the SmFeAsO1−xFx system is doping dependent, with an increasing deviation from a linear relation between the a- and c-axis with doping, which peaks in the x = 0.17 compound with the highest Tc value studied. The width of the superconducting FeAs4 layer in this compound exhibits a non-monotonic pressure dependence, which is not evident in the non-superconducting one. This unequal compression of the subunits of the cell apparently modifies the distribution of the carriers and affects the transition temperature. Our results agree with previous measurements for the highest doping level, and furthermore provide an indication about the connection of doping with lattice anomalies.	en
heal.publisher	Elsevier B.V.	en
heal.journalName	Physica C: Superconductivity	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	false