Temperature dependent local structure in BaTiO3 single crystal

被引：9

作者：

Phaktapha, Phanupong ^{[1
,2
]}

Jutimoosik, Jaru ^{[1
,2
]}

Bootchanont, Atipong ^{[3
]}

Kidkhunthod, Pinit ^{[4
]}

Rujirawat, Saroj ^{[1
,2
]}

Yimnirun, Rattikorn ^{[1
,2
]}

机构：

[1] Suranaree Univ Technol Nakhon Ratchasima, Inst Sci, Sch Phys, Nakhon Ratchasima, Thailand

[2] Suranaree Univ Technol Nakhon Ratchasima, NANOTEC SUT Ctr Excellence Adv Funct Nanomat, Nakhon Ratchasima, Thailand

[3] Rajamangala Univ Technol Thanyaburi RMUTT, Fac Sci & Technol, Div Phys, Pathum Thani, Thailand

[4] Synchrotron Light Res Inst Publ Org, Nakhon Ratchasima, Thailand

来源：

INTEGRATED FERROELECTRICS | 2017年 / 177卷 / 01期

关键词：

BaTiO3 single crystal; XANES; X-ray absorption;

D O I：

10.1080/10584587.2017.1285183

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The temperature dependent local structure of BaTiO3 single crystal was investigated by Synchrotron X-ray Absorption Spectroscopy (XAS) technique. From the X-ray Absorption Near-Edge Structure (XANES) measurements at Ti K-edge, it was seen that the local structure around Ti atom gradually changed with increasing temperature, showing the phase transition from tetragonal to cubic. A comparison between the measured and calculated XANES spectra revealed the gradual change of local structure as a result of the decreasing c/a ratio.

引用

页码：74 / 78

页数：5

共 11 条

[1] EXAFS Debye-Waller factor and thermal vibrations of crystals [J].