Colossal Strain Tuning of Ferroelectric Transitions in KNbO3 Thin Films

S Hazra, T Schwaigert, A Ross, H Lu… - Advanced …, 2024 - Wiley Online Library
Strong coupling between polarization (P) and strain (ɛ) in ferroelectric complex oxides offers
unique opportunities to dramatically tune their properties. Here colossal strain tuning of …

Sizing up (K 1− x Na x) NbO 3 films: a review of synthesis routes, properties & applications

SR Burns, MR Dolgos - New Journal of Chemistry, 2021 - pubs.rsc.org
Potassium sodium niobate,(K1− xNaxNbO3, KNN), is often discussed in the realm of lead-
free piezoelectrics due to the widespread restrictions on the use of hazardous lead in …

Achieving a high dielectric tunability in strain-engineered tetragonal K0.5Na0.5NbO3 films

L Hao, Y Yang, Y Huan, H Cheng, YY Zhao… - npj Computational …, 2021 - nature.com
Abstract Using a modified Landau-Devonshire type thermodynamic potential, we show that
dielectric tunability η of a tetragonal ferroelectric film can be analytically solved. At a given …

Applicability of coherent x-ray diffractive imaging to ferroelectric, ferromagnetic, and phase change materials

X Shi, J Shi, E Fohtung - Journal of Applied Physics, 2022 - pubs.aip.org
Rapid development in the field of ferroelectric and magnetic materials has attracted much
interest in the past decade. The underlying mechanisms of the fundamental phenomenon of …

[HTML][HTML] Ferroelectric domain structures and temperature-misfit strain phase diagrams of K1-xNaxNbO3 thin films: A phase-field study

B Wang, HN Chen, JJ Wang, LQ Chen - Applied Physics Letters, 2019 - pubs.aip.org
Potassium-sodium niobate K 1-x Na x NbO 3 (KNN) is one of the most promising lead-free
piezoelectric materials. While there have been many studies on the microstructures and …

Confinement of Electrons at the LaInO3/BaSnO3 Heterointerface

D Pfützenreuter, S Kim, H Cho… - Advanced Materials …, 2022 - Wiley Online Library
The properties of the conductance at the LaInO3/BaSnO3 heterointerface are reported. The
heterointerface is formed by covering the semi‐insulating BaSnO3: La thin films with 10 nm …

Phase-field simulation of domain size effect on dielectric and piezoelectric responses in K0. 5Na0. 5NbO3 epitaxial thin films with superdomain structures

MJ Zhou, B Wang, K Peng, HX Liu, LQ Chen, CW Nan - Acta Materialia, 2023 - Elsevier
Size effects of mesoscale ferroelectric domains on the macroscopic dielectric and
piezoelectric responses in domain-engineered bulk piezocrystals have been extensively …

Strain phase equilibria and phase‐field method of ferroelectric polydomain: A case study of monoclinic KxNa1 − xNbO3 thin films

B Wang, MJ Zhou, A Ladera… - Journal of the American …, 2024 - Wiley Online Library
Abstract Knowledge of the thermodynamic equilibria and domain structures of ferroelectrics
is critical to establishing their structure–property relationships that underpin their …

Tuning electrical properties and phase transitions through strain engineering in lead-free ferroelectric K0. 5Na0. 5NbO3-LiTaO3-CaZrO3 thin films

L Xu, F Chen, F **, D Lan, L Qu, K Zhang… - Applied Physics …, 2019 - pubs.aip.org
The effects of epitaxial strain on the properties of 0.95 (K 0.49 Na 0.49 Li 0.02)(Ta 0.2 Nb
0.8) O 3-0.05 CaZrO 3 (KNNLT-CZ) thin films are investigated. La 0.07 Sr 0.93 SnO 3 and …

Phase diagrams, superdomains, and superdomain walls in KxNa1-xNbO3 epitaxial thin films

MJ Zhou, B Wang, A Ladera, L Bogula, HX Liu… - Acta Materialia, 2021 - Elsevier
Abstract Domains and domain walls play a critical role in determining the functional
properties of ferroelectric thin films for various applications. Understanding the formation and …