Sm/Ti co-substituted bismuth ferrite multiferroics: reciprocity between tetragonality and piezoelectricity,Physical Chemistry Chemical Physics

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Sm/Ti co-substituted bismuth ferrite multiferroics: reciprocity between tetragonality and piezoelectricity
Physical Chemistry Chemical Physics ( IF 2.9 ) Pub Date : 2017-09-05 00:00:00 , DOI: 10.1039/c7cp01849e
Pardeep K. Jha _{1,

2,

3,

4,

5} , Priyanka A. Jha _{4,

5,

6,

7} , Prabhakar Singh _{4,

5,

6,

7} , Rajeev Ranjan _{4,

8,

9,

10} , R. K. Dwivedi _{1,

2,

3,

4}

Affiliation

BiFeO₃ (BFO) systems co-modified with Ti, Sm and Sm–Ti have been investigated for piezoelectricity together with dielectric and multiferroic properties. Structural studies revealed the coexistence of orthorhombic and rhombohedral (R3c) phases for x > 0.12. Impurity phases were shown to have hardly any effect on the remanent magnetization, which rather depends on the Fe–O–Fe bond angle. The dielectric loss was reduced considerably by substitution. A correlation between the piezoelectric coefficient and tetragonality was observed in these samples. BFO co-substituted with Sm–Ti exhibited a high piezoelectric coefficient with better ferroic properties, which revealed a unique combination of green piezoelectricity and multiferroicity.

中文翻译：

Sm / Ti共取代的铋铁氧体铋铁氧体：四方性与压电性之间的互易性

已经研究了与Ti，Sm和Sm-Ti共改性的BiFeO ₃（BFO）系统的压电性以及介电和多铁性。结构研究表明，x > 0.12时，正交晶相和菱面体（R 3 c）相并存。结果表明，杂质相对剩磁几乎没有任何影响，而剩磁取决于Fe-O-Fe键角。通过取代，介电损耗大大降低。在这些样品中观察到压电系数与四方性之间的相关性。与Sm-Ti共取代的BFO表现出高压电系数和更好的铁性，这显示了绿色压电和多铁性的独特结合。

更新日期：2017-09-21

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