{"title":"不同掺杂剂对PMN扩散相变和有序度的影响","authors":"Chude Feng, Yi Yang, Youhua Yu","doi":"10.1109/ISAF.2002.1195869","DOIUrl":null,"url":null,"abstract":"This work is based on PMN system. The influences of different dopants (Li/sup +/, Sr/sup 2+/, Y/sup 3+/) on diffuse dielectric properties and micro-structure were studied. HREM, SAED, Raman spectra and XPS were used to study small changes of ordering degree of PMN systems. The research proved that diffuse phase transition (DPT) is caused by the formation of ordered structure at B site (Mg/sup 2+/:Nb/sup 5+/=1:1). The degree of DPT can be contrasted from dielectric properties, and has direct relation with ordering degree of microstructure. It also showed when doping with element of one valence (Li/sup +/), the ordering degree of PMN lowered; when doping with Sr/sup 2+/ and Y/sup 3+/, the ordering degree enhanced to different extent.","PeriodicalId":415725,"journal":{"name":"Proceedings of the 13th IEEE International Symposium on Applications of Ferroelectrics, 2002. ISAF 2002.","volume":"54 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2002-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The effect of different dopants on diffuse phase transition and ordering degree in PMN\",\"authors\":\"Chude Feng, Yi Yang, Youhua Yu\",\"doi\":\"10.1109/ISAF.2002.1195869\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This work is based on PMN system. The influences of different dopants (Li/sup +/, Sr/sup 2+/, Y/sup 3+/) on diffuse dielectric properties and micro-structure were studied. HREM, SAED, Raman spectra and XPS were used to study small changes of ordering degree of PMN systems. The research proved that diffuse phase transition (DPT) is caused by the formation of ordered structure at B site (Mg/sup 2+/:Nb/sup 5+/=1:1). The degree of DPT can be contrasted from dielectric properties, and has direct relation with ordering degree of microstructure. It also showed when doping with element of one valence (Li/sup +/), the ordering degree of PMN lowered; when doping with Sr/sup 2+/ and Y/sup 3+/, the ordering degree enhanced to different extent.\",\"PeriodicalId\":415725,\"journal\":{\"name\":\"Proceedings of the 13th IEEE International Symposium on Applications of Ferroelectrics, 2002. ISAF 2002.\",\"volume\":\"54 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2002-05-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"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.2002.1195869\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","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.2002.1195869","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The effect of different dopants on diffuse phase transition and ordering degree in PMN
This work is based on PMN system. The influences of different dopants (Li/sup +/, Sr/sup 2+/, Y/sup 3+/) on diffuse dielectric properties and micro-structure were studied. HREM, SAED, Raman spectra and XPS were used to study small changes of ordering degree of PMN systems. The research proved that diffuse phase transition (DPT) is caused by the formation of ordered structure at B site (Mg/sup 2+/:Nb/sup 5+/=1:1). The degree of DPT can be contrasted from dielectric properties, and has direct relation with ordering degree of microstructure. It also showed when doping with element of one valence (Li/sup +/), the ordering degree of PMN lowered; when doping with Sr/sup 2+/ and Y/sup 3+/, the ordering degree enhanced to different extent.
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