Optimizing the growth of K(Ta0.6Nb0.4)O3 films using pulsed laser deposition and their electro-optic property

Yuji Sakurai; Xueyou Yuan; Shinya Kondo; Masahito Yoshino; Takanori Nagasaki; Tomoaki Yamada

doi:10.2109/JCERSJ2.21187

Optimizing the growth of K(Ta_0.6Nb_0.4)O₃ films using pulsed laser deposition and their electro-optic property

Yuji Sakurai, Xueyou Yuan, Shinya Kondo, Masahito Yoshino, Takanori Nagasaki, Tomoaki Yamada

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

1 Citation (Scopus)

Abstract

Deposition condition of (001)-epitaxial K(Ta_0.6Nb_0.4)O₃ (KTN) films on SrRuO₃/SrTiO₃ substrates by pulsed laser deposition was optimized. The optimized KTN film showed a saturated ferroelectric hysteresis loop with large withstand electric field, and the paraelectric to ferroelectric phase transition at room temperature (RT). Electro-optic (EO) property was characterized by modulation ellipsometry at RT, showing the maximum EO coefficient r_c of 42 pm/V, which is larger than the previously reported value for KTN thin films having the same composition. Our findings show the importance of the precise tuning of deposition condition to achieve the large EO response in KTN films, promoting the potential application as a light modulator in EO devices at ambient temperature in the future.

Original language	English
Pages (from-to)	424-428
Number of pages	5
Journal	Journal of the Ceramic Society of Japan
Volume	130
Issue number	7
DOIs	https://doi.org/10.2109/JCERSJ2.21187
Publication status	Published - Jul 1 2022

Keywords

Electro-optic effect
Ferroelectricity
PLD
Potassium tantalate-niobate
Thin films

ASJC Scopus subject areas

Ceramics and Composites
Chemistry(all)
Condensed Matter Physics
Materials Chemistry

Access to Document

10.2109/JCERSJ2.21187

Cite this

@article{bf60fedbcc5e4c288ffcd4728760d82b,

title = "Optimizing the growth of K(Ta0.6Nb0.4)O3 films using pulsed laser deposition and their electro-optic property",

abstract = "Deposition condition of (001)-epitaxial K(Ta0.6Nb0.4)O3 (KTN) films on SrRuO3/SrTiO3 substrates by pulsed laser deposition was optimized. The optimized KTN film showed a saturated ferroelectric hysteresis loop with large withstand electric field, and the paraelectric to ferroelectric phase transition at room temperature (RT). Electro-optic (EO) property was characterized by modulation ellipsometry at RT, showing the maximum EO coefficient rc of 42 pm/V, which is larger than the previously reported value for KTN thin films having the same composition. Our findings show the importance of the precise tuning of deposition condition to achieve the large EO response in KTN films, promoting the potential application as a light modulator in EO devices at ambient temperature in the future.",

keywords = "Electro-optic effect, Ferroelectricity, PLD, Potassium tantalate-niobate, Thin films",

author = "Yuji Sakurai and Xueyou Yuan and Shinya Kondo and Masahito Yoshino and Takanori Nagasaki and Tomoaki Yamada",

note = "Funding Information: Acknowledgement This work was supported partly by JST-CREST [Grant No. JPMJCR16Q4 (T.Y.)], JSPS KAKENHI [Grant No. 18H01474 (T.Y.), 19J12654 (S.K.)], the Murata Science Foundation (T.Y.), the Foundation of Public Interest of Tatematsu (T.Y.), and MEXT Element Strategy Initiative to Form Core Research Center (Grant No. JPMXP0112101001) (T.Y.). Publisher Copyright: {\textcopyright}2022 The Ceramic Society of Japan. All rights reserved.",

year = "2022",

month = jul,

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doi = "10.2109/JCERSJ2.21187",

language = "English",

volume = "130",

pages = "424--428",

journal = "Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan",

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publisher = "Ceramic Society of Japan/Nippon Seramikkusu Kyokai",

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TY - JOUR

T1 - Optimizing the growth of K(Ta0.6Nb0.4)O3 films using pulsed laser deposition and their electro-optic property

AU - Sakurai, Yuji

AU - Yuan, Xueyou

AU - Kondo, Shinya

AU - Yoshino, Masahito

AU - Nagasaki, Takanori

AU - Yamada, Tomoaki

N1 - Funding Information: Acknowledgement This work was supported partly by JST-CREST [Grant No. JPMJCR16Q4 (T.Y.)], JSPS KAKENHI [Grant No. 18H01474 (T.Y.), 19J12654 (S.K.)], the Murata Science Foundation (T.Y.), the Foundation of Public Interest of Tatematsu (T.Y.), and MEXT Element Strategy Initiative to Form Core Research Center (Grant No. JPMXP0112101001) (T.Y.). Publisher Copyright: ©2022 The Ceramic Society of Japan. All rights reserved.

PY - 2022/7/1

Y1 - 2022/7/1

N2 - Deposition condition of (001)-epitaxial K(Ta0.6Nb0.4)O3 (KTN) films on SrRuO3/SrTiO3 substrates by pulsed laser deposition was optimized. The optimized KTN film showed a saturated ferroelectric hysteresis loop with large withstand electric field, and the paraelectric to ferroelectric phase transition at room temperature (RT). Electro-optic (EO) property was characterized by modulation ellipsometry at RT, showing the maximum EO coefficient rc of 42 pm/V, which is larger than the previously reported value for KTN thin films having the same composition. Our findings show the importance of the precise tuning of deposition condition to achieve the large EO response in KTN films, promoting the potential application as a light modulator in EO devices at ambient temperature in the future.

AB - Deposition condition of (001)-epitaxial K(Ta0.6Nb0.4)O3 (KTN) films on SrRuO3/SrTiO3 substrates by pulsed laser deposition was optimized. The optimized KTN film showed a saturated ferroelectric hysteresis loop with large withstand electric field, and the paraelectric to ferroelectric phase transition at room temperature (RT). Electro-optic (EO) property was characterized by modulation ellipsometry at RT, showing the maximum EO coefficient rc of 42 pm/V, which is larger than the previously reported value for KTN thin films having the same composition. Our findings show the importance of the precise tuning of deposition condition to achieve the large EO response in KTN films, promoting the potential application as a light modulator in EO devices at ambient temperature in the future.

KW - Electro-optic effect

KW - Ferroelectricity

KW - PLD

KW - Potassium tantalate-niobate

KW - Thin films

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