Studies of ferroelectric and magnetic phase transitions in Pb(Fe0.5Nb0.5)1-xCexO3multiferroic ceramics

被引：1
作者：
Raevskaya, S. I. [1 ,2 ]
Titov, V. V. [1 ,2 ]
Raevski, I. P. [1 ,2 ]
Kubrin, S. P. [1 ,2 ]
Chou, C. -C. [3 ]
Shevtsova, S. I. [1 ,2 ,4 ]
Malitskaya, M. A. [1 ,2 ]
Zakharchenko, I. N. [1 ,2 ]
机构：
[1] Southern Fed Univ, Res Inst Phys, Stachki Ave 194, Rostov Na Donu 344090, Russia
[2] Southern Fed Univ, Phys Fac, Stachki Ave 194, Rostov Na Donu 344090, Russia
[3] Natl Taiwan Univ Sci & Technol, Taipei, Taiwan
[4] Southern Fed Univ, Inst Earth Sci, Rostov Na Donu, Russia
来源：
FERROELECTRICS | 2020年 / 567卷 / 01期
关键词：
Ferroelectric; lead iron niobate; multiferroic; Mossbauer effect; phase transition; CRYSTALS; PB(MG1/3NB2/3)O-3; MOSSBAUER; RELAXOR; CA;
D O I：
10.1080/00150193.2020.1791609
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Multiferroic Pb(Fe0.5Nb0.5)(1-x)CexO3(x = 0.025, 0.05, 0.075, 0.10) ceramic compositions were prepared by solid state synthesis and usual sintering. XRD studies have shown a formation of the perovskite structure in all the compositions studied. However a small amount of pyrochlore phase was detected in Ce-doped compositions with x >= 0.075. Scanning electron microscopy studies and elemental analysis have shown that at the boundaries of the large grains of nearly pure PbFe(0.5)Nb(0.5)O(3)there exist a lot of small submicron grains enriched by Ce. Concentration dependencies of the unit-cell parameter and temperatures of ferroelectric and magnetic phase transitions also imply that solubility of Ce in PFN does not exceed approximate to 2 at.%.
引用
收藏
页码：230 / 243
页数：14
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