Identifying phase transition behavior in Bi1/2Na1/2TiO3-BaTiO3 single crystals by piezoresponse force microscopy

被引：29

作者：

Lee, Hyun-Young ^{[1
]}

Wang, Ke ^{[1
]}

Yao, Fang-Zhou ^{[1
]}

Sun, Wei ^{[1
]}

Zhou, Zhen ^{[1
]}

Zhang, Mao-Hua ^{[1
]}

Li, Xiaobing ^{[2
]}

Luo, Haosu ^{[2
]}

Lee, Jae-Shin ^{[3
]}

Li, Jing-Feng ^{[1
]}

机构：

[1] Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Funct Mat & Devices, 215 Chengbei Rd, Shanghai 201800, Peoples R China

[3] Univ Ulsan, Sch Mat Sci & Engn, Ulsan 44610, South Korea

来源：

JOURNAL OF APPLIED PHYSICS | 2017年 / 121卷 / 17期

关键词：

FREE PIEZOELECTRIC CERAMICS; ELECTRICAL-PROPERTIES; FERROELECTRIC MATERIALS; RELAXOR FERROELECTRICS; RAMAN-SPECTROSCOPY; THIN-FILMS; SYSTEM; POLARIZATION;

D O I：

10.1063/1.4982910

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using piezoresponse force microscopy (PFM) and Raman spectroscopy, we studied the local temperature-dependent piezoelectric properties and phase structures of 0.95(Bi0.5Na0.5)TiO(3-)0.05BaTiO(3) (BNT-BT) single crystals. Local-area PFM revealed non-ergodic relaxor behavior around 160 degrees C. Switching spectroscopy-PFM (SS-PFM) results also supported the transition around 160 degrees C, with a gradual decrease in hysteresis width and nucleation bias. Moreover, Raman spectroscopy provided structural evidence of a phase transition in the same temperature region. These results are consistent with other theories of phase transitions in BNT-BT-based materials and verify the existence of a phase transition from a non-ergodic relaxor to ergodic relaxor of BNT-5.0%BT near 160 degrees C. Published by AIP Publishing.

引用

页数：7

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