@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",
issn = "1944-8244",
publisher = "American Chemical Society",
number = "48",
}