Ferroelectric Polarization Rotation in Order–Disorder-Type LiNbO3 Thin Films

Tae Sup Yoo; Sang A Lee; Changjae Roh; Seunghun Kang; Daehee Seol; Xinwei Guan; Jong-Seong Bae; Jiwoong Kim; Young-Min Kim; Hu Young Jeong; Seunggyo Jeong; Ahmed Yousef Mohamed; Deok-Yong Cho; Ji Young Jo; Sungkyun Park; Tao Wu; Yunseok Kim; Jongseok Lee; Woo Seok Choi

doi:10.1021/acsami.8b12900

Ferroelectric Polarization Rotation in Order–Disorder-Type LiNbO3 Thin Films

Tae Sup Yoo, Sang A Lee, Changjae Roh, Seunghun Kang, Daehee Seol, Xinwei Guan, Jong-Seong Bae, Jiwoong Kim, Young-Min Kim, Hu Young Jeong, Seunggyo Jeong, Ahmed Yousef Mohamed, Deok-Yong Cho, Ji Young Jo, Sungkyun Park, Tao Wu, Yunseok Kim, Jongseok Lee, Woo Seok Choi

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15 Scopus citations

Abstract

The direction of ferroelectric polarization is prescribed by the symmetry of the crystal structure. Therefore, rotation of the polarization direction is largely limited, despite the opportunity it offers in understanding important dielectric phenomena such as piezoelectric response near the morphotropic phase boundaries and practical applications such as ferroelectric memory. In this study, we report the observation of continuous rotation of ferroelectric polarization in order-disorder-type LiNbO3 thin films. The spontaneous polarization could be tilted from an out-of-plane to an in-plane direction in the thin film by controlling the Li vacancy concentration within the hexagonal lattice framework. Partial inclusion of monoclinic-like phase is attributed to the breaking of macroscopic inversion symmetry along different directions and the emergence of ferroelectric polarization along the in-plane direction.

Original language	English (US)
Pages (from-to)	41471-41478
Number of pages	8
Journal	ACS Applied Materials & Interfaces
Volume	10
Issue number	48
DOIs	https://doi.org/10.1021/acsami.8b12900
State	Published - Nov 8 2018

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We thank J. Lee for insightful discussion. This work was supported by Basic Science Research Programs through the National Research Foundation of Korea (NRF) (NRF-2017R1A2B4011083, NRF-2016R1A6A3A11934867 (S.A.L.), NRF-2015R1A5A1009962 (C.R. and J.L.), NRF-2014R1A4A1008474 (S.K., D.S., and Y.K.), NRF-2018R1D1A1B07045663 (J.K. and S.P.), NRF-2015R1C1A1A02037514 (D.-Y.C.), NRF-2016R1D1A1A02937051 (J.Y.J.), and NRF-2015M3D1A1070672 (Y.M.K.). Y.M.K. was also supported by the Institute for Basic Science (IBS-R011-D1)).

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https://repository.kaust.edu.sa/bitstream/10754/630198/1/LNO%20draft.pdf

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Yoo, T. S., Lee, S. A., Roh, C., Kang, S., Seol, D., Guan, X., Bae, J.-S., Kim, J., Kim, Y.-M., Jeong, H. Y., Jeong, S., Mohamed, A. Y., Cho, D.-Y., Jo, J. Y., Park, S., Wu, T., Kim, Y., Lee, J., & Choi, W. S. (2018). Ferroelectric Polarization Rotation in Order–Disorder-Type LiNbO3 Thin Films. ACS Applied Materials & Interfaces, 10(48), 41471-41478. https://doi.org/10.1021/acsami.8b12900

@article{416b0e4f88c44a8496d47859335e5405,

title = "Ferroelectric Polarization Rotation in Order–Disorder-Type LiNbO3 Thin Films",

abstract = "The direction of ferroelectric polarization is prescribed by the symmetry of the crystal structure. Therefore, rotation of the polarization direction is largely limited, despite the opportunity it offers in understanding important dielectric phenomena such as piezoelectric response near the morphotropic phase boundaries and practical applications such as ferroelectric memory. In this study, we report the observation of continuous rotation of ferroelectric polarization in order-disorder-type LiNbO3 thin films. The spontaneous polarization could be tilted from an out-of-plane to an in-plane direction in the thin film by controlling the Li vacancy concentration within the hexagonal lattice framework. Partial inclusion of monoclinic-like phase is attributed to the breaking of macroscopic inversion symmetry along different directions and the emergence of ferroelectric polarization along the in-plane direction.",

author = "Yoo, {Tae Sup} and Lee, {Sang A} and Changjae Roh and Seunghun Kang and Daehee Seol and Xinwei Guan and Jong-Seong Bae and Jiwoong Kim and Young-Min Kim and Jeong, {Hu Young} and Seunggyo Jeong and Mohamed, {Ahmed Yousef} and Deok-Yong Cho and Jo, {Ji Young} and Sungkyun Park and Tao Wu and Yunseok Kim and Jongseok Lee and Choi, {Woo Seok}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: We thank J. Lee for insightful discussion. This work was supported by Basic Science Research Programs through the National Research Foundation of Korea (NRF) (NRF-2017R1A2B4011083, NRF-2016R1A6A3A11934867 (S.A.L.), NRF-2015R1A5A1009962 (C.R. and J.L.), NRF-2014R1A4A1008474 (S.K., D.S., and Y.K.), NRF-2018R1D1A1B07045663 (J.K. and S.P.), NRF-2015R1C1A1A02037514 (D.-Y.C.), NRF-2016R1D1A1A02937051 (J.Y.J.), and NRF-2015M3D1A1070672 (Y.M.K.). Y.M.K. was also supported by the Institute for Basic Science (IBS-R011-D1)).",

year = "2018",

month = nov,

day = "8",

doi = "10.1021/acsami.8b12900",

language = "English (US)",

volume = "10",

pages = "41471--41478",

journal = "ACS Applied Materials & Interfaces",

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Yoo, TS, Lee, SA, Roh, C, Kang, S, Seol, D, Guan, X, Bae, J-S, Kim, J, Kim, Y-M, Jeong, HY, Jeong, S, Mohamed, AY, Cho, D-Y, Jo, JY, Park, S, Wu, T, Kim, Y, Lee, J & Choi, WS 2018, 'Ferroelectric Polarization Rotation in Order–Disorder-Type LiNbO3 Thin Films', ACS Applied Materials & Interfaces, vol. 10, no. 48, pp. 41471-41478. https://doi.org/10.1021/acsami.8b12900

TY - JOUR

T1 - Ferroelectric Polarization Rotation in Order–Disorder-Type LiNbO3 Thin Films

AU - Yoo, Tae Sup

AU - Lee, Sang A

AU - Roh, Changjae

AU - Kang, Seunghun

AU - Seol, Daehee

AU - Guan, Xinwei

AU - Bae, Jong-Seong

AU - Kim, Jiwoong

AU - Kim, Young-Min

AU - Jeong, Hu Young

AU - Jeong, Seunggyo

AU - Mohamed, Ahmed Yousef

AU - Cho, Deok-Yong

AU - Jo, Ji Young

AU - Park, Sungkyun

AU - Wu, Tao

AU - Kim, Yunseok

AU - Lee, Jongseok

AU - Choi, Woo Seok

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: We thank J. Lee for insightful discussion. This work was supported by Basic Science Research Programs through the National Research Foundation of Korea (NRF) (NRF-2017R1A2B4011083, NRF-2016R1A6A3A11934867 (S.A.L.), NRF-2015R1A5A1009962 (C.R. and J.L.), NRF-2014R1A4A1008474 (S.K., D.S., and Y.K.), NRF-2018R1D1A1B07045663 (J.K. and S.P.), NRF-2015R1C1A1A02037514 (D.-Y.C.), NRF-2016R1D1A1A02937051 (J.Y.J.), and NRF-2015M3D1A1070672 (Y.M.K.). Y.M.K. was also supported by the Institute for Basic Science (IBS-R011-D1)).

PY - 2018/11/8

Y1 - 2018/11/8

N2 - The direction of ferroelectric polarization is prescribed by the symmetry of the crystal structure. Therefore, rotation of the polarization direction is largely limited, despite the opportunity it offers in understanding important dielectric phenomena such as piezoelectric response near the morphotropic phase boundaries and practical applications such as ferroelectric memory. In this study, we report the observation of continuous rotation of ferroelectric polarization in order-disorder-type LiNbO3 thin films. The spontaneous polarization could be tilted from an out-of-plane to an in-plane direction in the thin film by controlling the Li vacancy concentration within the hexagonal lattice framework. Partial inclusion of monoclinic-like phase is attributed to the breaking of macroscopic inversion symmetry along different directions and the emergence of ferroelectric polarization along the in-plane direction.

AB - The direction of ferroelectric polarization is prescribed by the symmetry of the crystal structure. Therefore, rotation of the polarization direction is largely limited, despite the opportunity it offers in understanding important dielectric phenomena such as piezoelectric response near the morphotropic phase boundaries and practical applications such as ferroelectric memory. In this study, we report the observation of continuous rotation of ferroelectric polarization in order-disorder-type LiNbO3 thin films. The spontaneous polarization could be tilted from an out-of-plane to an in-plane direction in the thin film by controlling the Li vacancy concentration within the hexagonal lattice framework. Partial inclusion of monoclinic-like phase is attributed to the breaking of macroscopic inversion symmetry along different directions and the emergence of ferroelectric polarization along the in-plane direction.

UR - http://hdl.handle.net/10754/630198

UR - https://pubs.acs.org/doi/full/10.1021/acsami.8b12900

UR - http://www.scopus.com/inward/record.url?scp=85057556400&partnerID=8YFLogxK

U2 - 10.1021/acsami.8b12900

DO - 10.1021/acsami.8b12900

M3 - Article

C2 - 30406659

SN - 1944-8244

VL - 10

SP - 41471

EP - 41478

JO - ACS Applied Materials & Interfaces

JF - ACS Applied Materials & Interfaces

IS - 48

ER -

Ferroelectric Polarization Rotation in Order–Disorder-Type LiNbO3 Thin Films

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