Habit modification of nearly perfect single crystals of potassium dihydrogen phosphate (KDP) by trivalent manganese ions studied using synchrotron radiation X-ray multiple diffraction in Renninger scanning mode

dc.creatorLai, X
dc.creatorRoberts, KJ
dc.creatorAvanci, LH
dc.creatorCardoso, LP
dc.creatorSasaki, JM
dc.date2003
dc.dateOCT
dc.date2014-11-15T14:11:48Z
dc.date2015-11-26T16:11:37Z
dc.date2014-11-15T14:11:48Z
dc.date2015-11-26T16:11:37Z
dc.date.accessioned2018-03-28T23:00:06Z
dc.date.available2018-03-28T23:00:06Z
dc.identifierJournal Of Applied Crystallography. Blackwell Munksgaard, v. 36, n. 1230, n. 1235, 2003.
dc.identifier0021-8898
dc.identifierWOS:000185178600017
dc.identifier10.1107/S0021889803014766
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/79987
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/79987
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/79987
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1267129
dc.descriptionThe X-ray multiple diffraction technique using synchrotron radiation is applied in the preliminary study of the habit modification of KDP samples as induced by incorporation of the trivalent transition metal cation Mn3+. High-resolution Renninger scans of pure and doped KDP were carried out using 400 as the primary reflection, echoing the fact that these impurity species were segregated in the {100} growth sector. The analysis of the Renninger scans of the doped KDP crystals is consistent with the presence of the impurity species chemically bound within the KDP crystal structure, as confirmed through the suppression of the huge observed peak asymmetry, characteristic of perfect crystals. In addition, an extra Renninger-scan peak measured for the doped material is indicative of the impurity atoms occupying interstitial crystallographic sites in the lattice, a result consistent with X-ray standing-wave measurements. Renninger-scan reflection curve widths and lattice parameter measurements reveal the decrease in crystalline perfection ( increased mosaic spread, eta) and lattice contraction of ca 0.4% in the a and c lattice directions at the surface plane for the Mn3+-doped KDP samples in comparison with the undoped crystals.
dc.description36
dc.description5
dc.description1230
dc.description1235
dc.languageen
dc.publisherBlackwell Munksgaard
dc.publisherCopenhagen
dc.publisherDinamarca
dc.relationJournal Of Applied Crystallography
dc.relationJ. Appl. Crystallogr.
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectPhase Problem
dc.subjectEpitaxial Layers
dc.subjectReflections
dc.subjectMechanism
dc.subjectExamine
dc.subjectGrowth
dc.subjectImages
dc.subjectFaces
dc.subjectAdp
dc.titleHabit modification of nearly perfect single crystals of potassium dihydrogen phosphate (KDP) by trivalent manganese ions studied using synchrotron radiation X-ray multiple diffraction in Renninger scanning mode
dc.typeArtículos de revistas


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