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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
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
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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 hysics
Web 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
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