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

Polarization-switching pathway determined electrical transport behaviors in rhombohedral BiFeO3 thin films

Nanoscale ◽  
2021 ◽  
Author(s):  
Jing Wang ◽  
Huayu Yang ◽  
Yue Wang ◽  
Yuanyuan Fan ◽  
Di Liu ◽  
...  
Keyword(s):  
Thin Films ◽  
Atomic Force Microscopy ◽  
Electrical Transport ◽  
Point Contact ◽  
Rhombohedral Phase ◽  
Polarization Switching ◽  
Force Microscopy ◽  
Atomic Force ◽  
Bifeo3 Thin Films ◽  
Piezoelectric Force Microscopy

We investigate the polarization-switching pathway dependent electrical transport behaviors in rhombohedral-phase BiFeO3 thin films with a point contact geometry. By combining conducting-atomic force microscopy and piezoelectric force microscopy, we simultaneously...

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

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.

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

Domain structure and leakage mechanism of BiFeO3 thin films deposited at different temperatures

2014 ◽  
Vol 25 (7) ◽  
pp. 2998-3002 ◽  
Author(s):  
Huiqin Li ◽  
Jingsong Liu ◽  
Qilong Liao ◽  
Wanli Zhang ◽  
Shuren Zhang
Keyword(s):  
Thin Films ◽  
Domain Structure ◽  
Bifeo3 Thin Films ◽  
Leakage Mechanism ◽  
Different Temperatures

Cr doping-induced structural phase transition, optical tuning and magnetic enhancement in BiFeO3 thin films

2017 ◽  
Vol 186 ◽  
pp. 198-201 ◽  
Author(s):  
Benlong Guo ◽  
Hongmei Deng ◽  
Xuezhen Zhai ◽  
Wenliang Zhou ◽  
Xiankuan Meng ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Structural Phase Transition ◽  
Structural Phase ◽  
Bifeo3 Thin Films ◽  
Magnetic Enhancement ◽  
Cr Doping

Phase transition and piezoelectricity of sol–gel-processed Sm-doped BiFeO3 thin films on Pt(111)/Ti/SiO2/Si substrates

2015 ◽  
Vol 3 (9) ◽  
pp. 2115-2122 ◽  
Author(s):  
Wei Sun ◽  
Jing-Feng Li ◽  
Qi Yu ◽  
Li-Qian Cheng
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Sol Gel ◽  
Orthorhombic Phase ◽  
High Quality ◽  
Si Substrates ◽  
Bifeo3 Thin Films ◽  
Gel Processing

We prepared high-quality Bi1−xSmxFeO3 films on Pt(111)/Ti/SiO2/Si substrates by sol–gel processing and found rhombohedral–orthorhombic phase transition with enhanced piezoelectricity.

Ultrafast Dynamics of BiFeO3 Thin Films Studied by Dual-Color Femtosecond Spectroscopy

2010 ◽  
Vol 24 (1-2) ◽  
pp. 731-734 ◽  
Author(s):  
L. Y. Chen ◽  
J. C. Yang ◽  
H. C. Shih ◽  
C. W. Liang ◽  
T.-Y. Wu ◽  
...  
Keyword(s):  
Thin Films ◽  
Femtosecond Spectroscopy ◽  
Ultrafast Dynamics ◽  
Bifeo3 Thin Films ◽  
Dual Color

Optical properties of epitaxial BiFeO3 thin films

2010 ◽  
Vol 100 (4) ◽  
pp. 1217-1220 ◽  
Author(s):  
V. Železný ◽  
D. Chvostová ◽  
L. Pajasová ◽  
I. Vrejoiu ◽  
M. Alexe
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Bifeo3 Thin Films
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