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Effects of oxygen vacancies on polarization stability of barium titanate
Wang J(王军); Shen YG; Song F(宋凡); Ke FJ(柯孚久); Bai YL(白以龙); Lu CS; Ke, FJ (reprint author), Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China.
Source PublicationSCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
2016-03
Volume59Issue:3Pages:634602
ISSN1674-7348
AbstractOxygen vacancy, a kind of native point defects in ferroelectric ceramics, usually causes an increase of the dielectric loss. Based on experimental observations, it is believed that all of the oxygen vacancies are an unfavorable factor for energy saving. By using molecular dynamics simulations, we show that the increase of coercive and saturated electric fields is due to the difficulty to switch local polarization near an oxygen vacancy, and so that a ferroelectric device has to sustain the rising consumption of energy. The simulation results also uncover how oxygen vacancies influence ferroelectric properties.
KeywordFerroelectricity Hysteresis Oxygen Vacancy Molecular Dynamics Simulation
DOI10.1007/s11433-015-5754-8
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Indexed BySCI ; EI ; CSCD
Language英语
WOS IDWOS:000369369600010
WOS KeywordMECHANICAL-PROPERTIES ; BONE ; NANOCOMPOSITES ; COMPOSITES ; NANOSCALE ; NACRE ; MODEL
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
Funding OrganizationThis work was supported by the National Natural Science Foundation of China (Grant Nos. 11172024 and 11232013), the National Key Basic Research Program of China (Grant No. 2012CB937500), and the Research Grant Council of the Hong Kong Special Administrative Region, China (Grant No. 9042201 (CityU 11211015)). Computations were supported by resources provided by the Pawsey Supercomputing Centre with funding from the Australian Government and the Government of Western Australia, the LNMGrid of the State Key Laboratory of Nonlinear Mechanics and the ScGrid of Supercomputing Center, Computer Network Information Center of the Chinese Academy of Sciences.
DepartmentLNM材料的分子/细观统计力学行为
Classification二类
RankingTrue
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58678
Collection非线性力学国家重点实验室
Corresponding AuthorKe, FJ (reprint author), Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China.
Recommended Citation
GB/T 7714
Wang J,Shen YG,Song F,et al. Effects of oxygen vacancies on polarization stability of barium titanate[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2016,59(3):634602.
APA Wang J.,Shen YG.,Song F.,Ke FJ.,Bai YL.,...&Ke, FJ .(2016).Effects of oxygen vacancies on polarization stability of barium titanate.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,59(3),634602.
MLA Wang J,et al."Effects of oxygen vacancies on polarization stability of barium titanate".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 59.3(2016):634602.
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