Phase-field model for epitaxial ferroelectric and magnetic nanocomposite thin films

2007 ◽  
Vol 90 (5) ◽  
pp. 052909 ◽  
Author(s):  
J. X. Zhang ◽  
Y. L. Li ◽  
D. G. Schlom ◽  
L. Q. Chen ◽  
F. Zavaliche ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Field ◽  
Field Model ◽  
Phase Field Model ◽  
Magnetic Nanocomposite ◽  
Nanocomposite Thin Films

Phase-Field Simulation of Domain Structure Evolution in Ferroelectric Thin Films

2000 ◽  
Vol 652 ◽  
Author(s):  
Y. L. Li ◽  
S. Y. Hu ◽  
Z. K. Liu ◽  
L. Q. Chen
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Domain Wall ◽  
Domain Structure ◽  
Phase Field ◽  
Field Model ◽  
Phase Field Model ◽  
Ferroelectric Thin Films ◽  
Structure Evolution ◽  
Field Simulation

ABSTRACTA phase-field model for predicting the domain structure evolution in constrained ferroelectric thin films is developed. It employs an analytical elastic solution derived for a constrained film with arbitrary eigenstrain distributions. In particular, the model is applied to the domain structure evolution during a cubic→tetragonal proper ferro- electric phase transition. The effect of substrate constraint on the volume fractions of domain variants, domain-wall orientations, and domain shapes is studied. It is shown that the predicted results agree very well with existing experimental observations in ferroelectric thin films.

scholarly journals Phase-field model for grain boundary grooving in multi-component thin films

2006 ◽  
Vol 14 (3) ◽  
pp. 433-443 ◽  
Author(s):  
Mathieu Bouville ◽  
Shenyang Hu ◽  
Long-Qing Chen ◽  
Dongzhi Chi ◽  
David J Srolovitz
Keyword(s):  
Thin Films ◽  
Grain Boundary ◽  
Phase Field ◽  
Field Model ◽  
Phase Field Model

Phase-field model of domain structures in ferroelectric thin films

2001 ◽  
Vol 78 (24) ◽  
pp. 3878-3880 ◽  
Author(s):  
Y. L. Li ◽  
S. Y. Hu ◽  
Z. K. Liu ◽  
L. Q. Chen
Keyword(s):  
Thin Films ◽  
Phase Field ◽  
Field Model ◽  
Phase Field Model ◽  
Ferroelectric Thin Films ◽  
Domain Structures

A Phase Field Model for grain Growth and Thermal Grooving in Thin Films with Orientation Dependent Surface Energy

2007 ◽  
Vol 129 ◽  
pp. 89-94 ◽  
Author(s):  
Nele Moelans ◽  
Bart Blanpain ◽  
Patrick Wollants
Keyword(s):  
Thin Films ◽  
Free Energy ◽  
Grain Boundary ◽  
Grain Growth ◽  
Phase Field ◽  
Field Model ◽  
Volume Diffusion ◽  
Phase Field Model ◽  
Orientation Dependence ◽  
Formation Mechanisms

A phase field model for simulating grain growth and thermal grooving in thin films is presented. Orientation dependence of the surface free energy and misorientation dependence of the grain boundary free energy are included in the model. Moreover, the model can treat different mechanisms for groove formation, namely through volume diffusion, surface diffusion, evaporation-condensation, or a combination of these mechanisms. The evolution of a groove between two grains has been simulated for different surface and grain boundary energies and different groove formation mechanisms.

scholarly journals Formation of polarization needle-like domain and its unusual switching in compositionally graded ferroelectric thin films: an improved phase field model

RSC Advances ◽  
2019 ◽  
Vol 9 (13) ◽  
pp. 7575-7586 ◽  
Author(s):  
Le Van Lich ◽  
Van-Hai Dinh
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Phase Field ◽  
Field Model ◽  
Phase Field Model ◽  
Ferroelectric Thin Film ◽  
Ferroelectric Thin Films ◽  
Switching Mechanism ◽  
New Phase

New phase field model to reveal switching mechanism of needle domain in compositionally graded ferroelectric thin film.

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