{"title":"Investigation of cation environments in polycrystalline and single crystal PMN-PT using electron spectroscopy","authors":"S. McBride, A. Bell","doi":"10.1109/ISAF.2002.1195965","DOIUrl":null,"url":null,"abstract":"The present study has been focused on ABO/sub 3/ type perovskite relaxor based ferroelectric single crystals and polycrystalline forms of Pb(Mg/sub 1/3/Nb/sub 2/3/)O/sub 3/-PbTiO/sub 3/. Electron spectroscopy techniques including X-ray Photoelectron Spectroscopy (XPS) and Electron Energy Loss Spectroscopy (EELS) in the TEM have been used to investigate chemical environments and oxidation states of the A and B site occupants. Shifts in electron binding energies over the reported values for the cations in their native oxides have been measured using XPS and the oxidation state confirmed using EELS. In conclusion, the reported shifts are attributed to electronic polarisation, the greatest shift being exhibited by Pb/sup 2+/.","PeriodicalId":415725,"journal":{"name":"Proceedings of the 13th IEEE International Symposium on Applications of Ferroelectrics, 2002. ISAF 2002.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2002-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 13th IEEE International Symposium on Applications of Ferroelectrics, 2002. ISAF 2002.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISAF.2002.1195965","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
The present study has been focused on ABO/sub 3/ type perovskite relaxor based ferroelectric single crystals and polycrystalline forms of Pb(Mg/sub 1/3/Nb/sub 2/3/)O/sub 3/-PbTiO/sub 3/. Electron spectroscopy techniques including X-ray Photoelectron Spectroscopy (XPS) and Electron Energy Loss Spectroscopy (EELS) in the TEM have been used to investigate chemical environments and oxidation states of the A and B site occupants. Shifts in electron binding energies over the reported values for the cations in their native oxides have been measured using XPS and the oxidation state confirmed using EELS. In conclusion, the reported shifts are attributed to electronic polarisation, the greatest shift being exhibited by Pb/sup 2+/.
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