Study of field-induced phase transitions in 0.68PbMg1/3Nb2/3O3-0.32PbTiO3 relaxor single crystal by polarized micro-Raman spectroscopy

被引：11

作者：

Chen, Chao ^{[1
,2
,3
]}

Deng, Hao ^{[1
,3
]}

Li, Xiaobing ^{[1
]}

Zhang, Haiwu ^{[1
,3
]}

Huang, Ting ^{[4
]}

Lin, Di ^{[1
]}

Wang, Sheng ^{[1
]}

Zhao, Xiangyong ^{[1
]}

Hu, Zhigao ^{[4
]}

Luo, Haosu ^{[1
]}

机构：

[1] Univ Chinese Acad Sci, Key Lab Inorgan Funct Mat & Devices, Shanghai Inst Ceram, Shanghai 201800, Peoples R China

[2] Jingdezhen Ceram Inst, Dept Mat Sci & Engn, Jiangxi Key Lab Adv Ceram Mat, Jingdezhen 333001, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[4] E China Normal Univ, Dept Elect Engn, Shanghai 200241, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2014年 / 105卷 / 10期

关键词：

SCATTERING; PBTIO3;

D O I：

10.1063/1.4894418

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Polarized Raman spectroscopy has been performed to investigate the effects of the electric field on 0.68PbMg(1/3)Nb(2/3)O(3)-0.32PbTiO(3) (PMN-32PT) relaxor single crystal. Based on the group theory analysis, the Raman modes of PMN-32PT single crystal at zero-field are assigned to the monoclinic structure. The electric-field-evolution of Raman spectra reveal that a structural transition to tetragonal phase is initiated at a threshold electric field E-1 and completed at higher field E-2. In the intermediate field range from E-1 to E-2, the structure of the crystal is determined to be a coexistence of monoclinic and tetragonal phases. These results of the Raman spectra allow us to better understand the field-induced ultrahigh macroscopic strain in the relaxor ferroelectrics. (C) 2014 AIP Publishing LLC.

引用

页数：4

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