Phonon behaviors and dielectric functions in Bi                         0.5                         Na                         0.5                         TiO                         3                         -based ceramics by Raman scattering and optical ellipsometry

Shan Jiao; Fangfang Chen; Yi Zhang; Zhigao Hu; Zhihua Duan; Feifei Wang; Dazhi Sun

doi:10.1111/jace.16175

Phonon behaviors and dielectric functions in Bi _0.5 Na _0.5 TiO ₃ -based ceramics by Raman scattering and optical ellipsometry

Shan Jiao
, Fangfang Chen
, Yi Zhang
, Zhigao Hu
, Zhihua Duan^*
, Feifei Wang
, Dazhi Sun

^*Corresponding author for this work

School of Physics and Electronic Science

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

The dielectric functions and lattice vibrations of (0.935-x)Bi _0.5 Na _0.5 TiO ₃ -0.065BaTiO ₃ -xSrTiO ₃ (BNBSTx) ceramics were investigated by temperature-dependent spectroscopic ellipsometry and Raman scattering. Based on the analysis of dielectric functions with the Tauc-Lorentz dispersion model, it was found that the band gap and the temperature coefficient increased with the addition of SrTiO ₃ . Moreover, the frequency, intensity and/or full width at half maximum of phonon modes related to Bi and Ti-localized phonon modes exhibited local maximum/minimum around the depolarization temperature and permittivity-maximum temperature, which indicated the ongoing structural transformation. In addition, the Sr introduction affected the TiO ₆ tilting and the off-center displacement of Ti ⁴⁺ . These results seem to be significant for the enhanced response functions with the addition of SrTiO ₃ in BNBSTx ceramics.

Original language	English
Pages (from-to)	2791-2799
Number of pages	9
Journal	Journal of the American Ceramic Society
Volume	102
Issue number	5
DOIs	https://doi.org/10.1111/jace.16175
State	Published - May 2019

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10.1111/jace.16175

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Jiao, S., Chen, F., Zhang, Y., Hu, Z., Duan, Z., Wang, F., & Sun, D. (2019). Phonon behaviors and dielectric functions in Bi _0.5 Na _0.5 TiO ₃ -based ceramics by Raman scattering and optical ellipsometry Journal of the American Ceramic Society, 102(5), 2791-2799. https://doi.org/10.1111/jace.16175

Jiao, Shan ; Chen, Fangfang ; Zhang, Yi et al. / Phonon behaviors and dielectric functions in Bi _0.5 Na _0.5 TiO ₃ -based ceramics by Raman scattering and optical ellipsometry In: Journal of the American Ceramic Society. 2019 ; Vol. 102, No. 5. pp. 2791-2799.

@article{a08bb2d58ae44e2292203db02061b6a9,

title = " Phonon behaviors and dielectric functions in Bi 0.5 Na 0.5 TiO 3 -based ceramics by Raman scattering and optical ellipsometry ",

abstract = " The dielectric functions and lattice vibrations of (0.935-x)Bi 0.5 Na 0.5 TiO 3 -0.065BaTiO 3 -xSrTiO 3 (BNBSTx) ceramics were investigated by temperature-dependent spectroscopic ellipsometry and Raman scattering. Based on the analysis of dielectric functions with the Tauc-Lorentz dispersion model, it was found that the band gap and the temperature coefficient increased with the addition of SrTiO 3 . Moreover, the frequency, intensity and/or full width at half maximum of phonon modes related to Bi and Ti-localized phonon modes exhibited local maximum/minimum around the depolarization temperature and permittivity-maximum temperature, which indicated the ongoing structural transformation. In addition, the Sr introduction affected the TiO 6 tilting and the off-center displacement of Ti 4+ . These results seem to be significant for the enhanced response functions with the addition of SrTiO 3 in BNBSTx ceramics.",

author = "Shan Jiao and Fangfang Chen and Yi Zhang and Zhigao Hu and Zhihua Duan and Feifei Wang and Dazhi Sun",

note = "Publisher Copyright: {\textcopyright} 2018 The American Ceramic Society",

year = "2019",

month = may,

doi = "10.1111/jace.16175",

language = "英语",

volume = "102",

pages = "2791--2799",

journal = "Journal of the American Ceramic Society",

issn = "0002-7820",

publisher = "Wiley-Blackwell",

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Jiao, S, Chen, F, Zhang, Y, Hu, Z, Duan, Z, Wang, F & Sun, D 2019, ' Phonon behaviors and dielectric functions in Bi _0.5 Na _0.5 TiO ₃ -based ceramics by Raman scattering and optical ellipsometry ', Journal of the American Ceramic Society, vol. 102, no. 5, pp. 2791-2799. https://doi.org/10.1111/jace.16175

Phonon behaviors and dielectric functions in Bi _0.5 Na _0.5 TiO ₃ -based ceramics by Raman scattering and optical ellipsometry . / Jiao, Shan; Chen, Fangfang; Zhang, Yi et al.
In: Journal of the American Ceramic Society, Vol. 102, No. 5, 05.2019, p. 2791-2799.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Phonon behaviors and dielectric functions in Bi 0.5 Na 0.5 TiO 3 -based ceramics by Raman scattering and optical ellipsometry

AU - Jiao, Shan

AU - Chen, Fangfang

AU - Zhang, Yi

AU - Hu, Zhigao

AU - Duan, Zhihua

AU - Wang, Feifei

AU - Sun, Dazhi

PY - 2019/5

Y1 - 2019/5

N2 - The dielectric functions and lattice vibrations of (0.935-x)Bi 0.5 Na 0.5 TiO 3 -0.065BaTiO 3 -xSrTiO 3 (BNBSTx) ceramics were investigated by temperature-dependent spectroscopic ellipsometry and Raman scattering. Based on the analysis of dielectric functions with the Tauc-Lorentz dispersion model, it was found that the band gap and the temperature coefficient increased with the addition of SrTiO 3 . Moreover, the frequency, intensity and/or full width at half maximum of phonon modes related to Bi and Ti-localized phonon modes exhibited local maximum/minimum around the depolarization temperature and permittivity-maximum temperature, which indicated the ongoing structural transformation. In addition, the Sr introduction affected the TiO 6 tilting and the off-center displacement of Ti 4+ . These results seem to be significant for the enhanced response functions with the addition of SrTiO 3 in BNBSTx ceramics.

AB - The dielectric functions and lattice vibrations of (0.935-x)Bi 0.5 Na 0.5 TiO 3 -0.065BaTiO 3 -xSrTiO 3 (BNBSTx) ceramics were investigated by temperature-dependent spectroscopic ellipsometry and Raman scattering. Based on the analysis of dielectric functions with the Tauc-Lorentz dispersion model, it was found that the band gap and the temperature coefficient increased with the addition of SrTiO 3 . Moreover, the frequency, intensity and/or full width at half maximum of phonon modes related to Bi and Ti-localized phonon modes exhibited local maximum/minimum around the depolarization temperature and permittivity-maximum temperature, which indicated the ongoing structural transformation. In addition, the Sr introduction affected the TiO 6 tilting and the off-center displacement of Ti 4+ . These results seem to be significant for the enhanced response functions with the addition of SrTiO 3 in BNBSTx ceramics.

UR - https://www.scopus.com/pages/publications/85056133744

U2 - 10.1111/jace.16175

DO - 10.1111/jace.16175

M3 - 文章

AN - SCOPUS:85056133744

SN - 0002-7820

VL - 102

SP - 2791

EP - 2799

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

IS - 5

ER -

Jiao S, Chen F, Zhang Y, Hu Z, Duan Z, Wang F et al. Phonon behaviors and dielectric functions in Bi _0.5 Na _0.5 TiO ₃ -based ceramics by Raman scattering and optical ellipsometry Journal of the American Ceramic Society. 2019 May;102(5):2791-2799. doi: 10.1111/jace.16175

Phonon behaviors and dielectric functions in Bi _0.5 Na _0.5 TiO ₃ -based ceramics by Raman scattering and optical ellipsometry

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