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Title: Effect of surface tension on electrocaloric effects in ferroelectric nanostructures with vortex domain structure Author: Li, B.; Wang, J. B.; Zhong, X. L. (...) Source: Journal of Applied Physics, 2013, 114: 44301 |
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baiyuefei
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风雪
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【答案】应助回帖
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蓝的蓝: 金币+5 2014-08-27 08:15:22
oven1986: LS-EPI+1, 感谢应助！ 2014-08-30 00:18:06
蓝的蓝: 金币+5 2014-08-27 08:15:22
oven1986: LS-EPI+1, 感谢应助！ 2014-08-30 00:18:06
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Effect of surface tension on electrocaloric effects in the ferroelectric nanomaterial with vortex domain structures 作者:Li, B (Li, B.)[ 1,2 ] ; Wang, JB (Wang, J. B.)[ 1,2 ] ; Zhong, XL (Zhong, X. L.)[ 1,2 ] ; Wang, F (Wang, F.)[ 1,2 ] ; Wang, LJ (Wang, L. J.)[ 1,2 ] ; Zhou, YC (Zhou, Y. C.)[ 1,2 ] JOURNAL OF APPLIED PHYSICS 卷: 114 期: 4 文献号: UNSP 044301 DOI: 10.1063/1.4813508 出版年: JUL 28 2013 查看期刊信息 摘要 The influence of intrinsic surface tension on the electrocaloric effect (ECE) in the ferroelectric nanomaterial with vortex domain structures is studied by using the phase field method. The calculation results show that a giant adiabatic temperature change (Delta T = 5.8 K) related to the toroidal moment change appears in the PbTiO3 (PTO) ferroelectric nanoparticle with the surface tension coefficient mu = 5 N/m under the vorticity vector of curled electric field (Q(1) = 0 mV/angstrom(2), Delta Q(1) = 0.9 mV/angstrom(2)) at room temperature. The magnitude of the adiabatic temperature change decreases with the increase in surface tension. The decrease in size is found to enhance the ECE of PTO nanoparticle with vortex domain structures when the surface tension is not considered. (C) 2013 AIP Publishing LLC. 关键词 KeyWords Plus:FIELD; SIZE; TEMPERATURE 作者信息 通讯作者地址: Wang, JB (通讯作者) Xiangtan Univ, Minist Educ, Key Lab Low Dimens Mat & Applicat Technol, Xiangtan 411105, Hunan, Peoples R China. 地址: [ 1 ] Xiangtan Univ, Minist Educ, Key Lab Low Dimens Mat & Applicat Technol, Xiangtan 411105, Hunan, Peoples R China [ 2 ] Xiangtan Univ, Fac Mat Optoelect & Phys, Xiangtan 411105, Hunan, Peoples R China 电子邮件地址:jbwang@xtu.edu.cn; xlzhong@xtu.edu.cn 基金资助致谢 基金资助机构 授权号 National Natural Science Foundation of China 11072208 11272274 11032010 Hunan Provincial Natural Science Foundation of China 12JJ1007 Specialized Research Fund for the Doctoral Program of Higher Education 20114301110004 Innovation Fund Project for Graduate Student of Hunan Province CX2012B246 查看基金资助信息 出版商 AMER INST PHYSICS, CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA 类别 / 分类 研究方向  hysicsWeb of Science 类别 hysics, Applied文献信息 文献类型:Article 语种:English 入藏号: WOS:000322539300078 ISSN: 0021-8979 期刊信息 Impact Factor (影响因子): Journal Citation Reports® 其他信息 IDS 号: 193DZ Web of Science 核心合集中的 "引用的参考文献 |
3楼2014-08-26 17:36:36
baiyuefei
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2楼2014-08-26 17:36:18
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