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Role of defect structures in stabilization of ferroelectric phase in tin‐substituted lead zirconate titanate
Journal of the American Ceramic Society ( IF 3.5 ) Pub Date : 2018-02-20 , DOI: 10.1111/jace.15482
Adukkadan Anil 1 , Killimangalath Vani 1 , Viswanathan Kumar 1
Affiliation  

This study reports the influence of B‐site acceptor dopants, manganese and copper, on the sequence of phase transformations in antiferroelectric (AFE) Pb(Zr0.60Sn0.30Ti0.10)O3. The sequence of phase transformations below the Curie point have been examined by dielectric, polarization‐electric field and strain‐electric field studies. The parent compound and B‐site Cu2+‐doped composition exhibit the same sequence, FE ← AFE ← MCC with incommensuration in the multicell cubic (MCC) state, whereas in the case of B‐site Mn3+‐doped system, incommensuration is found to be suppressed and only ferroelectric (FE) phase is observed below the Curie point. The underlying mechanism is related to the nature of defect complexes present in the system through detailed Electron Paramagnetic Resonance studies.

中文翻译:

缺陷结构在锡取代锆钛酸铅钛酸盐中铁电相稳定中的作用

这项研究报告了B位受体掺杂剂,锰和铜对反铁电(AFE)Pb(Zr 0.60 Sn 0.30 Ti 0.10 Ti 0.10)O 3的相变顺序的影响。居里点以下的相变序列已通过介电,极化电场和应变电场研究进行了检验。母体化合物和B位掺杂Cu 2+的成分表现出相同的序列,即FE←AFE←MCC,在多晶胞立方(MCC)状态下存在不通量,而在B位Mn 3+的情况下在掺杂的系统中,发现不通量被抑制,并且仅在居里点以下观察到铁电(FE)相。通过详细的电子顺磁共振研究,其潜在机理与系统中存在的缺陷配合物的性质有关。
更新日期:2018-02-20
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