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Title: Effects of oxygen vacancies on polarization stability of barium titanate
Author: Wang J(王军); Shen YG; Song F(宋凡); Ke FJ(柯孚久); Bai YL(白以龙); Lu CS
Source: SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
Issued Date: 2016-03
Volume: 59, Issue:3, Pages:634602
Abstract: Oxygen 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.
Keyword: ferroelectricity ; hysteresis ; oxygen vacancy ; molecular dynamics simulation
Language: 英语
Indexed Type: SCI ; EI ; CSCD
Corresponding Author: Ke, FJ (reprint author), Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China.
Correspondent Email: kefj@lnm.imech.ac.cn
DOI: 10.1007/s11433-015-5754-8
Related URLs: 查看原文
DOC Type: 期刊论文
WOS Subject: Physics, Multidisciplinary
WOS Subject Extended: Physics
WOS Keyword Plus: MECHANICAL-PROPERTIES ; BONE ; NANOCOMPOSITES ; COMPOSITES ; NANOSCALE ; NACRE ; MODEL
WOS ID: WOS:000369369600010
ISSN: 1674-7348
Funder: This 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.
Rank: [Wang, Jun; Song, Fan; Bai, YiLong] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China; [Shen, YaoGen] City Univ Hong Kong, Dept Mech & Biomed Engn, Hong Kong, Hong Kong, Peoples R China; [Ke, FuJiu] Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China; [Lu, ChunSheng] Curtin Univ, Dept Mech Engn, Perth, WA 6845, Australia
Department: LNM材料的分子/细观统计力学行为
Classification: 二类
First Institution (Yes or Not): True
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/58678
Appears in Collections:非线性力学国家重点实验室_期刊论文

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Recommended Citation:
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.
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