Domain evolution of tetragonal Pb(ZrxTi1−x) O3 piezoelectric thin films on SrTiO3 (100) surfaces: combined effects of misfit strain and Zr/Ti ratio

2014 ◽  
Vol 2 (29) ◽  
pp. 5836-5841 ◽  
Author(s):  
Qi Yu ◽  
Jing-Feng Li ◽  
Fang-Yuan Zhu ◽  
Jiangyu Li
Keyword(s):  
Thin Films ◽  
Misfit Strain ◽  
Epitaxial Thin Films ◽  
Combined Effects ◽  
Piezoelectric Thin Films ◽  
Domain Evolution ◽  
Ferroelectric Domains ◽  
Substrate Constraint

The ferroelectric domains of tetragonal Pb(ZrxTi1−x)O3 epitaxial thin films have been studied comprehensively to reveal their piezoelectric responses under substrate constraint.

Crossover between Mott and Efros-Shklovskii variable-range hopping in Sr2IrO4 epitaxial thin films by misfit strain and isovalent doping

2019 ◽  
Vol 126 (18) ◽  
pp. 185101 ◽  
Author(s):  
M. Souri ◽  
J. G. Connell ◽  
J. Nichols ◽  
J. Terzic ◽  
G. Cao ◽  
...  
Keyword(s):  
Thin Films ◽  
Misfit Strain ◽  
Epitaxial Thin Films ◽  
Variable Range Hopping ◽  
Variable Range ◽  
Isovalent Doping

scholarly journals Misfit Strain Induced Interface Structure in PMN-PT Epitaxial Thin Films

Materia Japan ◽  
2019 ◽  
Vol 58 (2) ◽  
pp. 97-97
Author(s):  
Takanori Kiguchi ◽  
Takahisa Shiraishi ◽  
Toyohiko J. Konno ◽  
Cangyu Fan
Keyword(s):  
Thin Films ◽  
Misfit Strain ◽  
Interface Structure ◽  
Epitaxial Thin Films

Misfit Strain Relaxation by Secondary Phase Formation in Multiferroic BiFeO3 Epitaxial Thin Films

2009 ◽  
Vol 1199 ◽  
Author(s):  
Xue Wang ◽  
Yinlian Zhu ◽  
Xiuliang Ma ◽  
Can Wang ◽  
Huibin Lu
Keyword(s):  
Thin Films ◽  
Strain Relaxation ◽  
Compositional Analysis ◽  
Secondary Phase ◽  
Misfit Strain ◽  
Dark Field ◽  
Misfit Dislocations ◽  
Epitaxial Thin Films ◽  
Annular Dark Field ◽  
Parasitic Phase

AbstractMicrostructures of BiFeO3 (BFO) thin films epitaxially grown on SrRuO3 (SRO) buffered SrTiO3 (STO) (001) substrates by laser molecular beam epitaxy were investigated by means of transmission electron microscopy (TEM). The results showed that the films grown under the oxygen pressures of 1Pa and 0.3Pa, respectively, contain parasitic phase embedded in the BFO phase. The parasitic phase was revealed to be poor in Bi and rich in Fe by high-angle annular dark-field (HAADF) imaging and energy dispersive X-ray spectroscopy (EDS) compositional analysis. In combination with selected area electron diffraction patterns, the parasitic phase was determined to be α-Fe2O3. By lowering oxygen pressure, the density and the size of α-Fe2O3 phase increases whereas the regularity decreases. High resolution TEM images showed that approximately periodic misfit dislocations exist at the interface between the α-Fe2O3 phase and the BFO matrix, indicating that the α-Fe2O3 particles are semi-coherently embedded in the BFO films. Less misfit dislocations were detected at the interfaces between the BFO films and the SRO/STO substrates, implying that the misfit strains in the films may be fully relaxed by the formation of α-Fe2O3 phase.

Use of misfit strain to remove dislocations from epitaxial thin films

1976 ◽  
Vol 33 (2) ◽  
pp. 253-266 ◽  
Author(s):  
J.W. Matthews ◽  
A.E. Blakeslee ◽  
S. Mader
Keyword(s):  
Thin Films ◽  
Misfit Strain ◽  
Epitaxial Thin Films

Pyroelectric Properties of Ferroelectric Thin Films: Effect of Internal Stresses

2003 ◽  
Vol 784 ◽  
Author(s):  
A. Sharma ◽  
Z.–G. Ban ◽  
S. P. Alpay
Keyword(s):  
Thin Films ◽  
Paraelectric Phase ◽  
Misfit Strain ◽  
Pyroelectric Coefficient ◽  
Ferroelectric Thin Films ◽  
Internal Stresses ◽  
Misfit Dislocations ◽  
Epitaxial Thin Films ◽  
Substrate Selection ◽  
Pyroelectric Response

ABSTRACTA thermodynamic model is employed to analyze the effect of internal stresses on the pyroelectric response of ferroelectric thin films. The pyroelectric coefficient as a function of the misfit strain is calculated for (001) Ba0.6Sr0.4TiO3 epitaxial thin films by taking into account formation of misfit dislocations that relieve epitaxial stresses during deposition. It is shown that the pyroelectric response is highly dependent on the misfit strain in epitaxial thin films. Enhanced pyroelectric coefficient can be achieved by adjusting the misfit strain via substrate selection and film thickness especially in the vicinity of the ferroelectric to paraelectric phase transformation.

Domain Evolution and Piezoelectric Response across Thermotropic Phase Boundary in (K,Na)NbO3-Based Epitaxial Thin Films

2017 ◽  
Vol 9 (15) ◽  
pp. 13315-13322 ◽  
Author(s):  
Jin Luo ◽  
Wei Sun ◽  
Zhen Zhou ◽  
Yu Bai ◽  
Zhan Jie Wang ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Boundary ◽  
Piezoelectric Response ◽  
Epitaxial Thin Films ◽  
Domain Evolution

Integration and Optimisation of PZT Piezoelectric Thin Films in Micro and Nano Dimensional Structures

2009 ◽  
Vol 1 (3) ◽  
pp. 214-225 ◽  
Author(s):  
D. Remiens ◽  
C. Soyer ◽  
D. Troadec ◽  
D. Deresmes ◽  
D. Jenkins ◽  
...  
Keyword(s):  
Thin Films ◽  
Piezoelectric Thin Films
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