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Growth of Ca$_2$MnO$_4$ Ruddlesden-Popper structured thin films using combinatorial substrate epitaxy

hal.structure.identifierLaboratoire de cristallographie et sciences des matériaux [CRISMAT]
dc.contributor.authorLACOTTE, Morgane
hal.structure.identifierLaboratoire de cristallographie et sciences des matériaux [CRISMAT]
dc.contributor.authorDAVID, Adrien
hal.structure.identifierLaboratoire de cristallographie et sciences des matériaux [CRISMAT]
dc.contributor.authorPRAVARTHANA, Dhanapal
hal.structure.identifierCentre de recherche sur les Ions, les MAtériaux et la Photonique [CIMAP - UMR 6252]
dc.contributor.authorGRYGIEL, Clara
hal.structure.identifierCarnegie Mellon University [Pittsburgh] [CMU]
dc.contributor.authorROHRER, Gregory S.
hal.structure.identifierCarnegie Mellon University [Pittsburgh] [CMU]
dc.contributor.authorSALVADOR, Paul A.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorVELÁZQUEZ, Matias
hal.structure.identifierEDAX Application Laboratory
dc.contributor.authorDE KLOE, R.
hal.structure.identifierLaboratoire de cristallographie et sciences des matériaux [CRISMAT]
dc.contributor.authorPRELLIER, Wilfrid
dc.date.issued2014
dc.identifier.issn0021-8979
dc.description.abstractEnThe local epitaxial growth of pulsed laser deposited Ca$_2$MnO$_4$ films on polycrystalline spark plasma sintered Sr$_2$TiO$_4$ substrates was investigated to determine phase formation and preferred epitaxial orientation relationships ($ORs$) for isostructural Ruddlesden-Popper (RP) heteroepitaxy, further developing the high-throughput synthetic approach called Combinatorial Substrate Epitaxy (CSE). Both grazing incidence X-ray diffraction and electron backscatter diffraction (EBSD) patterns of the film and substrate were indexable as single-phase RP-structured compounds. The optimal growth temperature (between 650 $^{\circ}$C and 800 $^{\circ}$C) was found to be 750 $^{\circ}$C using the maximum value of the average image quality (IQ) of the backscattered diffraction patterns. Films grew in a grain-over-grain pattern such that each Ca$_2$MnO$_4$ grain had a single $OR$ with the Sr$_2$TiO$_4$ grain on which it grew. Three primary $ORs$ described 47 out of 49 grain pairs that covered nearly all of RP orientation space. The first $OR$, found for 20 of the 49, was the expected RP unit-cell over RP unit-cell $OR$, expressed as [100][001]$_{film}$||[100][001]$_{sub}$. The other two $ORs$ were essentially rotated from the first by 90$^{\circ}$, with one (observed for 17 of 49 pairs) being rotated about the [100] and the other (observed for 10 of 49 pairs) being rotated about the [110] (and not exactly by 90$^{\circ}$). These results indicate that only a small number of $ORs$ are needed to describe isostructural RP heteroepitaxy and further demonstrate the potential of CSE in the design and growth of a wide range of complex functional oxides.
dc.language.isoen
dc.publisherAmerican Institute of Physics
dc.title.enGrowth of Ca$_2$MnO$_4$ Ruddlesden-Popper structured thin films using combinatorial substrate epitaxy
dc.typeArticle de revue
dc.identifier.doi10.1063/1.4905012
dc.subject.halChimie/Matériaux
dc.identifier.arxiv1412.2598
bordeaux.journalJournal of Applied Physics
bordeaux.page245303 (8 p.)
bordeaux.volume116
bordeaux.issue24
bordeaux.peerReviewedoui
hal.identifierhal-01101849
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01101849v1
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