Pressure dependence of crystal structure of Cu2O by TOF powder neutron diffraction

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dc.contributor.authorIshikawa, Yen_AU
dc.contributor.authorSakuma, Ten_AU
dc.contributor.authorTakahashi, Hen_AU
dc.contributor.authorDanilkin, SAen_AU
dc.date.accessioned2016-08-29T00:56:11Zen_AU
dc.date.available2016-08-29T00:56:11Zen_AU
dc.date.issued2014-09-01en_AU
dc.date.statistics2016-08-29en_AU
dc.description.abstractNeutron diffraction measurements were performed on powder Cu2O with different samples that are pressure released after a pressing force of 295 K with iMATERIA (IBARAKI Materials Designed Diffractometer) installed at MLF in J-PARC. Peak widths of Bragg lines increased depending on the pressing force. To clarify the relation between the crystallite size and the microstrain effect, Rietveld refinement analysis on a TOF neutron diffraction pattern of Cu2O was performed by assuming a cubic cuprite type structure (space group Pn-3m). Strain and crystallite size effects were estimated from Lorentzian terms in the Pseudo-Voigt profile function with a pair of Back-to-Back exponential types based on the Stephenes model. It is considered that the increasing peak width according to the dependence of pressing force is mainly derived from strain effects. And this result is consistent with the previous studies of Ag2O where the Williamson–Hall plot method by X-ray diffraction was applied. © 2013, Elsevier B.V.en_AU
dc.identifier.citationIshikawa, Y., Sakuma, T., Takahashi, H., & Danilkin, S. A. (2014). Pressure dependence of crystal structure of Cu2O by TOF powder neutron diffraction. Solid State Ionics, 262(0), 622-624. doi: http://dx.doi.org/10.1016/j.ssi.2013.11.034en_AU
dc.identifier.govdoc7043en_AU
dc.identifier.issn0167-2738en_AU
dc.identifier.journaltitleSolid State Ionicsen_AU
dc.identifier.pagination622-624en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.ssi.2013.11.034en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/7401en_AU
dc.identifier.volume262en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectNeutron diffractionen_AU
dc.subjectCrystal structureen_AU
dc.subjectBragg curveen_AU
dc.subjectPressure dependenceen_AU
dc.subjectStrainsen_AU
dc.titlePressure dependence of crystal structure of Cu2O by TOF powder neutron diffractionen_AU
dc.typeJournal Articleen_AU
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