Anomalous Thermal Expansion in (Pr,Ca)MnO3 due to Orbital Ordering

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dc.contributor.authorJussi Tikkanen
dc.contributor.authorSimo Kauhala
dc.contributor.authorHannu Huhtinen
dc.contributor.authorPetriina Paturi
dc.contributor.organizationfi=Wihurin fysiikantutkimuslaboratorio|en=Wihuri Physical Laboratory|
dc.contributor.organizationfi=fysiikan ja tähtitieteen laitos|en=Department of Physics and Astronomy|
dc.contributor.organization-code1.2.246.10.2458963.20.26581883332
dc.contributor.organization-code2606700
dc.contributor.organization-code2606701
dc.converis.publication-id2505080
dc.converis.urlhttps://research.utu.fi/converis/portal/Publication/2505080
dc.date.accessioned2022-10-28T13:25:50Z
dc.date.available2022-10-28T13:25:50Z
dc.description.abstract<p> The monoclinic lattice parameters of the perovskite manganites Pr<sub>(1-x)</sub>Ca<sub>x</sub>MnO<sub>3</sub> were systematically measured by XRD at the Ca doping levels x=0.4, 0.5 and 0.1 at temperatures from 83 K to 403 K. The orbital ordering transition observed around 250 K at x=0.4 and x=0.5, located by SQUID magnetometry, was associated with a transient cell volume expansion of order 0.1%, during which the CO-related monoclinic distortion set in. The anomalous cell expansion, arguably driven by electrostructural disorder, was of sufficient magnitude to locally dominate the thermal expansion.</p>
dc.format.pagerange475
dc.format.pagerange481
dc.identifier.jour-issn1875-3892
dc.identifier.olddbid182024
dc.identifier.oldhandle10024/165118
dc.identifier.urihttps://www.utupub.fi/handle/11111/39154
dc.identifier.urlhttp://www.sciencedirect.com/science/article/pii/S1875389215016983
dc.identifier.urnURN:NBN:fi-fe2021042714669
dc.language.isoen
dc.okm.affiliatedauthorTikkanen, Jussi
dc.okm.affiliatedauthorKauhala, Simo
dc.okm.affiliatedauthorHuhtinen, Hannu
dc.okm.affiliatedauthorPaturi, Petriina
dc.okm.discipline114 Physical sciencesen_GB
dc.okm.discipline114 Fysiikkafi_FI
dc.okm.internationalcopublicationnot an international co-publication
dc.okm.internationalityInternational publication
dc.okm.typeA1 ScientificArticle
dc.publisher.countryNetherlandsen_GB
dc.publisher.countryAlankomaatfi_FI
dc.publisher.country-codeNL
dc.relation.doi10.1016/j.phpro.2015.12.059
dc.relation.ispartofjournalPhysics Procedia
dc.relation.volume75
dc.source.identifierhttps://www.utupub.fi/handle/10024/165118
dc.titleAnomalous Thermal Expansion in (Pr,Ca)MnO3 due to Orbital Ordering
dc.year.issued2015

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