Title :
Mechanical properties of ferroelectric 180 degree domain structure under different strain rates
Author :
Tian, Xiao-bao ; Yang, Xin-hua ; Cao, Wei-zhong
Author_Institution :
Sch. of Civil Eng. & Mech., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
Dynamic mechanical properties of domain structure in BaTiO3 nano-film are investigated using molecular dynamics simulation method based on a shell model. The evolution of the 180 degree domain structure in BaTiO3 nano-films is simulated under different strain rates. Stress-strain curves of the BaTiO3 nano-film under different strain rates are obtained. The strain rate effect is not found in the BaTiO3 nano-film without lattice defect.
Keywords :
barium compounds; electric domains; ferroelectric thin films; molecular dynamics method; nanostructured materials; stress-strain relations; BaTiO3; ferroelectric 180 degree domain structure; mechanical properties; molecular dynamics simulation; nanofilm; shell model; strain rate effect; stress-strain curves; Barium; Computational modeling; Lattices; Nanostructures; Strain; Titanium compounds; barium titanate; core-shell model; molecular dynamics simulation; strain rates;
Conference_Titel :
Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA), 2010 Symposium on
Conference_Location :
Xiamen
Print_ISBN :
978-1-4244-9822-2
DOI :
10.1109/SPAWDA.2010.5744325
