Electric field induced cubic to monoclinic phase transition in multiferroic 0.65Bi(Ni1/2Ti1/2)O3-0.35PbTiO3 solid solution

被引：8

作者：

Pandey, Rishikesh ^{[1
]}

Singh, Akhilesh Kumar ^{[1
]}

机构：

[1] Banaras Hindu Univ, Sch Mat Sci & Technol, Indian Inst Technol, Varanasi 221005, Uttar Pradesh, India

来源：

APPLIED PHYSICS LETTERS | 2014年 / 105卷 / 16期

关键词：

POLARIZATION ROTATION; CRYSTALS; PBTIO3; ORIGIN;

D O I：

10.1063/1.4899058

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The results of x-ray diffraction studies on 0.65Bi(Ni1/2Ti1/2)O-3-0.35PbTiO(3) solid solution poled at various electric fields are presented. After poling, significant value of planar electromechanical coupling coefficient (k(P)) is observed for this composition having cubic structure in unpoled state. The cubic structure of 0.65Bi(Ni1/2Ti1/2)O-3-0.35PbTiO(3) transforms to monoclinic structure with space group Pm for the poling field >= 5 kV/cm. Large c-axis microscopic lattice strain (1.6%) is achieved at 30 kV/cm poling field. The variation of the c-axis strain and unit cell volume with poling field shows a drastic jump similar to that observed for strain versus electric field curve in (1 = x)Pb(Mg1/3Nb2/3)O-3-xPbTiO(3) and (1 = x)Pb(Zn1/3Nb2/3)O-3-xPbTiO(3). (C) 2014 AIP Publishing LLC.

引用

页数：4

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