scholarly journals Domain structures of ferroelectric films under different electrical boundary conditions

AIP Advances ◽  
2015 ◽  
Vol 5 (10) ◽  
pp. 107206 ◽  
Author(s):  
Z. D. Zhou ◽  
D. Y. Wu
Keyword(s):  
Boundary Conditions ◽  
Ferroelectric Films ◽  
Domain Structures ◽  
Electrical Boundary Conditions

scholarly journals Mobile and immobile boundaries in ferroelectric films

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
P. Yudin ◽  
K. Shapovalov ◽  
T. Sluka ◽  
J. Peräntie ◽  
H. Jantunen ◽  
...  
Keyword(s):  
Long Range ◽  
Domain Walls ◽  
Ferroelectric Properties ◽  
Practical Importance ◽  
Dynamic Responses ◽  
Ferroelectric Films ◽  
Domain Structures ◽  
Mobile Interfaces ◽  
Ferroelastic Domains ◽  
Viable Method

AbstractThe intrinsic mobile interfaces in ferroelectrics—the domain walls can drive and enhance diverse ferroelectric properties, essential for modern applications. Control over the motion of domain walls is of high practical importance. Here we analyse theoretically and show experimentally epitaxial ferroelectric films, where mobile domain walls coexist and interact with immobile growth-induced interfaces—columnar boundaries. Whereas these boundaries do not disturb the long-range crystal order, they affect the behaviour of domain walls in a peculiar selective manner. The columnar boundaries substantially modify the behaviour of non-ferroelastic domains walls, but have negligible impact on the ferroelastic ones. The results suggest that introduction of immobile boundaries into ferroelectric films is a viable method to modify domain structures and dynamic responses at nano-scale that may serve to functionalization of a broader range of ferroelectric films where columnar boundaries naturally appear as a result of the 3D growth.

scholarly journals Non-reciprocal behavior of one-dimensional piezoelectric structures with space-time modulated electrical boundary conditions

2019 ◽  
Vol 126 (14) ◽  
pp. 145108 ◽  
Author(s):  
C. Croënne ◽  
J. O. Vasseur ◽  
O. Bou Matar ◽  
A.-C. Hladky-Hennion ◽  
B. Dubus
Keyword(s):  
Boundary Conditions ◽  
Space Time ◽  
One Dimensional ◽  
Electrical Boundary Conditions ◽  
Piezoelectric Structures

scholarly journals Optimization of a Tunable Piezoelectric Resonator Using Phononic Crystals with Periodic Electrical Boundary Conditions

2015 ◽  
Vol 70 ◽  
pp. 258-261 ◽  
Author(s):  
Marie-Fraise Ponge ◽  
Bertrand Dubus ◽  
Christian Granger ◽  
Jérôme Vasseur ◽  
Mai Pham Thi ◽  
...  
Keyword(s):  
Boundary Conditions ◽  
Phononic Crystals ◽  
Piezoelectric Resonator ◽  
Electrical Boundary Conditions

scholarly journals Properties ofPb(Zr,Ti)O3ultrathin films under stress-free and open-circuit electrical boundary conditions

2004 ◽  
Vol 70 (22) ◽  
Author(s):  
Emad Almahmoud ◽  
Yulia Navtsenya ◽  
Igor Kornev ◽  
Huaxiang Fu ◽  
L. Bellaiche
Keyword(s):  
Boundary Conditions ◽  
Open Circuit ◽  
Electrical Boundary Conditions

scholarly journals Computer simulation of the structural phase transitions in thin ferroelectric films

2017 ◽  
Vol 07 (01) ◽  
pp. 1750004 ◽  
Author(s):  
O. G. Maksimova ◽  
A. V. Maksimov ◽  
O. S. Baruzdina
Keyword(s):  
Phase Transition ◽  
Phase Transitions ◽  
Boundary Conditions ◽  
Order Parameter ◽  
Mixed Boundary ◽  
Structural Phase ◽  
Film Surface ◽  
Mixed Boundary Conditions ◽  
Structural Phase Transitions ◽  
Ferroelectric Films

The influence of free surface and depolarizing field on structural phase transitions in thin ferroelectric films from an ordered state to a disordered one is investigated. The dependences of the order parameter on the distance from the free film surface are calculated. It is shown that with the presence of the depolarizing field and in its absence, the effective thickness of the surface layer depends on the temperature. Nearby the phase transition point, the thickness increases indefinitely. Calculations considering depolarizing field showed that the phase transition points for the bulk ferroelectrics and the film under given boundary conditions coincide. Also shown that in the absence of depolarizing field with mixed boundary conditions, the film thickness does not affect the order parameter, and in presence of the field, this influence is observed.

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