Surface and size effects on ferroelectric films with domain structures

1995 ◽  
Vol 51 (8) ◽  
pp. 5311-5314 ◽  
Author(s):  
Y. G. Wang ◽  
W. L. Zhong ◽  
P. L. Zhang
Keyword(s):  
Size Effects ◽  
Ferroelectric Films ◽  
Domain Structures

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.

Lateral size effects on cells in ferroelectric films

1995 ◽  
Vol 51 (23) ◽  
pp. 17235-17238 ◽  
Author(s):  
Y. G. Wang ◽  
W. L. Zhong ◽  
P. L. Zhang
Keyword(s):  
Size Effects ◽  
Lateral Size ◽  
Ferroelectric Films

Supression of size effects in ferroelectric films

2000 ◽  
Vol 28 (1-4) ◽  
pp. 175-192 ◽  
Author(s):  
Seshu B. Desu ◽  
Orest G. Vendik
Keyword(s):  
Size Effects ◽  
Ferroelectric Films

scholarly journals Theoretical Methods of Domain Structures in Ultrathin Ferroelectric Films: A Review

Materials ◽  
2014 ◽  
Vol 7 (9) ◽  
pp. 6502-6568 ◽  
Author(s):  
Jianyi Liu ◽  
Weijin Chen ◽  
Biao Wang ◽  
Yue Zheng
Keyword(s):  
Ferroelectric Films ◽  
Theoretical Methods ◽  
Domain Structures

Size effects on phase transitions in ferroelectric films

1994 ◽  
Vol 189 (1-2) ◽  
pp. 121-126 ◽  
Author(s):  
W.L. Zhong ◽  
Y.G. Wang ◽  
P.L. Zhang
Keyword(s):  
Phase Transitions ◽  
Size Effects ◽  
Ferroelectric Films

Electrostatic Model for the Dielectric Permittivity of Ferroelectric Films with 90° Domain Structures

2003 ◽  
Vol 42 (Part 1, No. 9B) ◽  
pp. 6183-6187 ◽  
Author(s):  
Dan Ricinschi ◽  
Yoshihiro Ishibashi ◽  
Masanori Okuyama
Keyword(s):  
Dielectric Permittivity ◽  
Electrostatic Model ◽  
Ferroelectric Films ◽  
Domain Structures

Size Effects on Polarization in Epitaxial Ferroelectric Films and the Concept of Ferroelectric Tunnel Junctions Including First Results

2001 ◽  
Vol 688 ◽  
Author(s):  
H. Kohlstedt ◽  
N. A. Pertsev ◽  
R. Waser
Keyword(s):  
Size Effect ◽  
Size Effects ◽  
Field Effect ◽  
Misfit Strain ◽  
Misfit Dislocations ◽  
Spatial Correlations ◽  
Static Properties ◽  
Ferroelectric Films ◽  
First Results ◽  
Film Substrate

AbstractExtrinsic and intrinsic size effects on the spontaneous polarization of epitaxial ferroelectric films are discussed. The extrinsic effect of electrostatic origin is attributed to the presence of nonferroelectric subsurface layers in the film. Theoretical studies of this depolarizing-field effect are reviewed. It is concluded that, for perovskite ferroelectrics sandwiched between electrodes with a perovskite structure, the depolarizing-field effect on the static properties should be negligible. The extrinsic size effect is also attributed to the thickness dependence of the film in-plane lattice strain Sm, which is due to the generation of misfit dislocations in the epitaxy. Variation of the film polarization with the misfit strain Sm is described by a nonlinear thermodynamic theory, which allows for the mechanical film/substrate interaction. The intrinsic effect of the film surfaces, which is associated with spatial correlations of the ferroelectric polarization, is simultaneously taken into account via the concept of extrapolation length δ. It is shown that, in films grown on compressive substrates (Sm < 0), the strain-induced increase of the mean polarization prevails over the negative intrinsic size effect (δ > 0). As a result, well below the transition temperature, ferroelectricity may be present even in nanometer-thick epitaxial layers. Motivated by this result, we propose the concept of ferroelectric tunnel junction. First results on tunnelling through ultrathin barriers of perovskite ferroelectrics are presented.

Size effects in nanostructured ferroelectric films

2007 ◽  
Vol 33 (3) ◽  
pp. 231-234 ◽  
Author(s):  
O. G. Vendik ◽  
N. Yu. Medvedeva ◽  
S. P. Zubko
Keyword(s):  
Size Effects ◽  
Ferroelectric Films
Sign in / Sign up

Export Citation Format

Share Document