Optically tuned dielectric property of ferroelectric PZT/STO/PT superlattice by THz spectroscopy

Jie Ji; Furi Ling; Siyan Zhou; Dan Li; Chunya Luo; Liang Wu; Jianquan Yao

doi:10.1016/j.jallcom.2017.01.334

Optically tuned dielectric property of ferroelectric PZT/STO/PT superlattice by THz spectroscopy

Jie Ji
, Furi Ling (Corresponding author)
, Siyan Zhou
, Dan Li
, Chunya Luo
, Liang Wu
, Jianquan Yao

Onderzoeksoutput: Bijdrage aan tijdschrift › Tijdschriftartikel › Academic › peer review

5 Citaten (Scopus)

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The dielectric spectra of ferroelectric Pb(Zr_0.52Ti_0.48)O₃/SrTiO₃/PbTiO₃(PZT/STO/PT) superlattice under an external optical field were investigated at room temperature by time-domain terahertz (THz) spectroscopy. Results showed that the real and imaginary part of permittivity were increased roughly upon application of an external optical field, and tuned by 78.16% and 85.65% respectively. It could be interpreted as softening of the soft mode and increasing of the damping coefficient and oscillator strength. Furthermore, the central mode was observed in the tricolor thin film, and the frequency of the central mode was also increased along with the optical power.

Originele taal-2	Engels
Pagina's (van-tot)	517-522
Aantal pagina's	6
Tijdschrift	Journal of Alloys and Compounds
Volume	703
DOI's	https://doi.org/10.1016/j.jallcom.2017.01.334
Status	Gepubliceerd - 5 mei 2017
Extern gepubliceerd	Ja

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Publisher Copyright:
© 2017 Elsevier B.V.

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10.1016/j.jallcom.2017.01.334

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@article{eb7aa191ef6c4d359479766fe6080fd2,

title = "Optically tuned dielectric property of ferroelectric PZT/STO/PT superlattice by THz spectroscopy",

abstract = "The dielectric spectra of ferroelectric Pb(Zr0.52Ti0.48)O3/SrTiO3/PbTiO3(PZT/STO/PT) superlattice under an external optical field were investigated at room temperature by time-domain terahertz (THz) spectroscopy. Results showed that the real and imaginary part of permittivity were increased roughly upon application of an external optical field, and tuned by 78.16\% and 85.65\% respectively. It could be interpreted as softening of the soft mode and increasing of the damping coefficient and oscillator strength. Furthermore, the central mode was observed in the tricolor thin film, and the frequency of the central mode was also increased along with the optical power.",

keywords = "Dielectric characterization, Ferroelectric superlattice, Soft mode, THz",

author = "Jie Ji and Furi Ling and Siyan Zhou and Dan Li and Chunya Luo and Liang Wu and Jianquan Yao",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

month = may,

day = "5",

doi = "10.1016/j.jallcom.2017.01.334",

language = "English",

volume = "703",

pages = "517--522",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Optically tuned dielectric property of ferroelectric PZT/STO/PT superlattice by THz spectroscopy

AU - Ji, Jie

AU - Ling, Furi

AU - Zhou, Siyan

AU - Li, Dan

AU - Luo, Chunya

AU - Wu, Liang

AU - Yao, Jianquan

PY - 2017/5/5

Y1 - 2017/5/5

N2 - The dielectric spectra of ferroelectric Pb(Zr0.52Ti0.48)O3/SrTiO3/PbTiO3(PZT/STO/PT) superlattice under an external optical field were investigated at room temperature by time-domain terahertz (THz) spectroscopy. Results showed that the real and imaginary part of permittivity were increased roughly upon application of an external optical field, and tuned by 78.16% and 85.65% respectively. It could be interpreted as softening of the soft mode and increasing of the damping coefficient and oscillator strength. Furthermore, the central mode was observed in the tricolor thin film, and the frequency of the central mode was also increased along with the optical power.

AB - The dielectric spectra of ferroelectric Pb(Zr0.52Ti0.48)O3/SrTiO3/PbTiO3(PZT/STO/PT) superlattice under an external optical field were investigated at room temperature by time-domain terahertz (THz) spectroscopy. Results showed that the real and imaginary part of permittivity were increased roughly upon application of an external optical field, and tuned by 78.16% and 85.65% respectively. It could be interpreted as softening of the soft mode and increasing of the damping coefficient and oscillator strength. Furthermore, the central mode was observed in the tricolor thin film, and the frequency of the central mode was also increased along with the optical power.

KW - Dielectric characterization

KW - Ferroelectric superlattice

KW - Soft mode

KW - THz

UR - https://www.scopus.com/pages/publications/85012173236

U2 - 10.1016/j.jallcom.2017.01.334

DO - 10.1016/j.jallcom.2017.01.334

M3 - Article

AN - SCOPUS:85012173236

SN - 0925-8388

VL - 703

SP - 517

EP - 522

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Optically tuned dielectric property of ferroelectric PZT/STO/PT superlattice by THz spectroscopy

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