Effect of Mn doping on the acoustic and vibrational behaviors of lead-free piezoelectric (Na1/2Bi1/2)TiO3-xBaTiO(3) single crystal

doi:10.1016/j.cap.2019.08.001

	Effect of Mn doping on the acoustic and vibrational behaviors of lead-free piezoelectric (Na1/2Bi1/2)TiO3-xBaTiO(3) single crystal
	Oh, Soo Han; Lee, Byoung Wan; Jang, Moongyu; Ko, Jae-Hyeon; Li, Xiaobing; Luo, Haosu
刊名	CURRENT APPLIED PHYSICS
	2019-11-01
卷号	19 期号:11 页码:1195
关键词	NBT-BT Lead-free Relaxor Mn doping Light scattering
ISSN号	1567-1739
DOI	10.1016/j.cap.2019.08.001
文献子类	Article
英文摘要	The acoustic and vibrational properties of Mn-doped (Na1/2Bi1/2)TiO3-xBaTiO(3) with x=0.05 were investigated by using Brillouin and Raman spectroscopies and compared with those of undoped crystals. The mode frequency and the half width of the Brillouin doublet of the longitudinal acoustic mode showed more drastic changes near the dielectric maximum temperature compared to the broad and diffused changes of the undoped crystals, which indicates that Mn-doping induces polar domains larger than the typical polar nanoregions formed in undoped counterpart. The acoustic anomalies were most pronounced along the < 100> direction suggesting that the polarization fluctuations are anisotropic and largest along this direction. Temperature dependence of Raman spectra showed that there are two characteristics temperatures where mode splitting occurs due to local symmetry changes. The high-temperature anomaly was associated with the changes in the acoustic properties, while the low-temperature mode splitting was related to the dielectric anomaly near depolarization temperature.
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ELSEVIER
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/26753]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 GB/T 7714	Oh, Soo Han,Lee, Byoung Wan,Jang, Moongyu,et al. Effect of Mn doping on the acoustic and vibrational behaviors of lead-free piezoelectric (Na1/2Bi1/2)TiO3-xBaTiO(3) single crystal[J]. CURRENT APPLIED PHYSICS,2019,19(11):1195.
APA	Oh, Soo Han,Lee, Byoung Wan,Jang, Moongyu,Ko, Jae-Hyeon,Li, Xiaobing,&Luo, Haosu.(2019).Effect of Mn doping on the acoustic and vibrational behaviors of lead-free piezoelectric (Na1/2Bi1/2)TiO3-xBaTiO(3) single crystal.CURRENT APPLIED PHYSICS,19(11),1195.
MLA	Oh, Soo Han,et al."Effect of Mn doping on the acoustic and vibrational behaviors of lead-free piezoelectric (Na1/2Bi1/2)TiO3-xBaTiO(3) single crystal".CURRENT APPLIED PHYSICS 19.11(2019):1195.