Coexistence of multiple morphotropic phase boundaries in strained La-doped BiFeO3 thin films

2021 ◽  
Vol 17 ◽  
pp. 100345
Author(s):  
Xiaozhe Yin ◽  
Chao Chen ◽  
Zhen Fan ◽  
Minghui Qin ◽  
Min Zeng ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Boundaries ◽  
Bifeo3 Thin Films ◽  
La Doped

scholarly journals Enhanced conductivity at orthorhombic–rhombohedral phase boundaries in BiFeO3 thin films

2016 ◽  
Vol 8 (8) ◽  
pp. e297-e297 ◽  
Author(s):  
Yooun Heo ◽  
Jin Hong Lee ◽  
Lin Xie ◽  
Xiaoqing Pan ◽  
Chan-Ho Yang ◽  
...  
Keyword(s):  
Thin Films ◽  
Rhombohedral Phase ◽  
Phase Boundaries ◽  
Bifeo3 Thin Films ◽  
Enhanced Conductivity

A Strain-Driven Antiferroelectric-to-Ferroelectric Phase Transition in La-Doped BiFeO3 Thin Films on Si

Nano Letters ◽  
2017 ◽  
Vol 17 (9) ◽  
pp. 5823-5829 ◽  
Author(s):  
Deyang Chen ◽  
Christopher T. Nelson ◽  
Xiaohong Zhu ◽  
Claudy R. Serrao ◽  
James D. Clarkson ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Ferroelectric Phase Transition ◽  
Ferroelectric Phase ◽  
Bifeo3 Thin Films ◽  
La Doped

Local electrical conduction in polycrystalline La-doped BiFeO3 thin films

2013 ◽  
Vol 24 (22) ◽  
pp. 225702 ◽  
Author(s):  
Ming-Xiu Zhou ◽  
Bo Chen ◽  
Hai-Bin Sun ◽  
Jian-Guo Wan ◽  
Zi-Wei Li ◽  
...  
Keyword(s):  
Thin Films ◽  
Electrical Conduction ◽  
Bifeo3 Thin Films ◽  
La Doped

scholarly journals High-performance ferroelectric non-volatile memory based on La-doped BiFeO3 thin films

RSC Advances ◽  
2020 ◽  
Vol 10 (31) ◽  
pp. 18039-18043
Author(s):  
Wanqiong Dai ◽  
Yuanxiang Li ◽  
Caihong Jia ◽  
Chaoyang Kang ◽  
Mengxin Li ◽  
...  
Keyword(s):  
Thin Films ◽  
Single Crystal ◽  
High Performance ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Single Crystal Substrate ◽  
Bifeo3 Thin Films ◽  
Crystal Substrate ◽  
Non Volatile Memory ◽  
La Doped

An ultrathin (6.2 nm) ferroelectric La0.1Bi0.9FeO3 (LBFO) film was epitaxially grown on a 0.7 wt% Nb-doped SrTiO3 (001) single-crystal substrate by carrying out pulsed laser deposition to form a Pt/La0.1Bi0.9FeO3/Nb-doped SrTiO3 heterostructure.

Preparation of La-doped BiFeO3 thin films with Fe2+ ions on Si substrates

2006 ◽  
Vol 99 (9) ◽  
pp. 094105 ◽  
Author(s):  
F. Gao ◽  
C. Cai ◽  
Y. Wang ◽  
S. Dong ◽  
X. Y. Qiu ◽  
...  
Keyword(s):  
Thin Films ◽  
Si Substrates ◽  
Bifeo3 Thin Films ◽  
La Doped

Piezoelectric Response and Polarization-Dependent Conductivity of Grain Boundaries in BiFeO3 Thin Films

2019 ◽  
Author(s):  
D.O. Alikin ◽  
Y. Fomichov ◽  
S.P. Reis ◽  
A.S. Abramov ◽  
D.S. Chezganov ◽  
...  
Keyword(s):  
Thin Films ◽  
Grain Boundaries ◽  
Piezoelectric Response ◽  
Bifeo3 Thin Films

scholarly journals Alkali-deficiency driven charged out-of-phase boundaries for giant electromechanical response

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Haijun Wu ◽  
Shoucong Ning ◽  
Moaz Waqar ◽  
Huajun Liu ◽  
Yang Zhang ◽  
...  
Keyword(s):  
Thin Films ◽  
Temperature Stability ◽  
Epitaxial Films ◽  
Polarization Rotation ◽  
Phase Boundaries ◽  
Film Properties ◽  
New Strategy ◽  
The Matrix ◽  
Opposing Effects ◽  
Severe Deterioration

AbstractTraditional strategies for improving piezoelectric properties have focused on phase boundary engineering through complex chemical alloying and phase control. Although they have been successfully employed in bulk materials, they have not been effective in thin films due to the severe deterioration in epitaxy, which is critical to film properties. Contending with the opposing effects of alloying and epitaxy in thin films has been a long-standing issue. Herein we demonstrate a new strategy in alkali niobate epitaxial films, utilizing alkali vacancies without alloying to form nanopillars enclosed with out-of-phase boundaries that can give rise to a giant electromechanical response. Both atomically resolved polarization mapping and phase field simulations show that the boundaries are strained and charged, manifesting as head-head and tail-tail polarization bound charges. Such charged boundaries produce a giant local depolarization field, which facilitates a steady polarization rotation between the matrix and nanopillars. The local elastic strain and charge manipulation at out-of-phase boundaries, demonstrated here, can be used as an effective pathway to obtain large electromechanical response with good temperature stability in similar perovskite oxides.

The role of intermediate S-polymorph towards high piezoelectricity in La-doped BiFeO3 epitaxial thin films

2021 ◽  
Vol 207 ◽  
pp. 116683
Author(s):  
Jun Young Lee ◽  
Gopinathan Anoop ◽  
Sanjith Unithrattil ◽  
WooJun Seol ◽  
Youngki Yeo ◽  
...  
Keyword(s):  
Thin Films ◽  
Epitaxial Thin Films ◽  
La Doped

scholarly journals Superconducting Sr2RuO4 Thin Films without Out-of-Phase Boundaries by Higher-Order Ruddlesden–Popper Intergrowth

Nano Letters ◽  
2021 ◽  
Author(s):  
Jinkwon Kim ◽  
Junsik Mun ◽  
Carla M. Palomares García ◽  
Bongju Kim ◽  
Robin S. Perry ◽  
...  
Keyword(s):  
Thin Films ◽  
Higher Order ◽  
Phase Boundaries
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