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Integrated Ferroelectrics
An International Journal
Volume 177, 2017 - Issue 1: Proceedings of the International Conference on Science and Technology of Emerging Materials (STEMa2016)
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Original Articles

Temperature dependent local structure in BaTiO3 single crystal

Phanupong PhaktaphaSchool of Physics, Institute of Science, and NANOTEC-SUT Center of Excellence on Advanced Functional Nanomaterials, Suranaree University of TechnologyNakhon Ratchasima, Thailand
,
Jaru JutimoosikSchool of Physics, Institute of Science, and NANOTEC-SUT Center of Excellence on Advanced Functional Nanomaterials, Suranaree University of TechnologyNakhon Ratchasima, Thailand
,
Atipong BootchanontDivision of Physics, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi (RMUTT), Pathumthani, Thailand
,
Pinit KidkhunthodSynchrotron Light Research Institute (Public Organization), Nakhon Ratchasima, Thailand
,
Saroj RujirawatSchool of Physics, Institute of Science, and NANOTEC-SUT Center of Excellence on Advanced Functional Nanomaterials, Suranaree University of TechnologyNakhon Ratchasima, Thailand
&
Rattikorn YimnirunSchool of Physics, Institute of Science, and NANOTEC-SUT Center of Excellence on Advanced Functional Nanomaterials, Suranaree University of TechnologyNakhon Ratchasima, ThailandCorrespondence[email protected]
Pages 74-78 | Received 12 May 2016, Accepted 06 Oct 2016, Published online: 21 Mar 2017
 
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ABSTRACT

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.

Funding

The authors acknowledge the NANOTEC-SUT Center of Excellence on Advanced Functional Nanomaterials, Suranaree University of Technology for partial financial support. RY and JJ also acknowledge a financial support for a Full-time Doctoral Researcher from Suranaree University of Technology (SUT) and Office of the Higher Education Commission under NRU Project of Thailand.

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