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Title: The coexistence of negative and positive electrocaloric effect in the ferroelectric thin film for solid-state refrigeration
Author: Li, B.; Wang, J. B.; Zhong, X. L. (...)
Source: Europhysics Letters, 2013, 102: 47004
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The coexistence of the negative and positive electrocaloric effect in ferroelectric thin films for solid-state refrigeration
×÷Õß:Li, B (Li, B.)[ 1 ] ; Wang, JB (Wang, J. B.); Zhong, XL (Zhong, X. L.); Wang, F (Wang, F.); Zeng, YK (Zeng, Y. K.); Zhou, YC (Zhou, Y. C.)
EPL
¾í: 102  ÆÚ: 4
ÎÄÏ׺Å: 47004
DOI: 10.1209/0295-5075/102/47004
³ö°æÄê: MAY 2013
²é¿´ÆÚ¿¯ÐÅÏ¢
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The coexistence of the negative and positive electrocaloric effect (ECE) caused by an applied electric field direction different from the dipole direction of 180 degrees domain structures is firstly found in ferroelectric thin films using the phase-field-based simulation. The calculation results reveal that a negative adiabatic temperature change (Delta T = -3.4K) and a positive adiabatic temperature change (Delta T = 3.1K) coexist in the PbTiO3 thin film with 180 degrees domain structures under the dimensional electric field Delta E = 0.1. The coexistence of negative and positive ECE in a thin film can provide a new way to design solid-state refrigerators. Copyright (C) EPLA, 2013
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KeyWords PlusEROVSKITES
×÷ÕßÐÅÏ¢
ͨѶ×÷ÕßµØÖ·: Li, B (ͨѶ×÷Õß)
ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ        Xiangtan Univ, Key Lab Low Dimens Mat & Applicat Technol, Minist Educ, Xiangtan 411105, Hunan, Peoples R China.
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ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ        [ 1 ] Xiangtan Univ, Key Lab Low Dimens Mat & Applicat Technol, Minist Educ, Xiangtan 411105, Hunan, Peoples R China
ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ        [ 2 ] Xiangtan Univ, Fac Mat Optoelect & Phys, Xiangtan 411105, Hunan, Peoples R China
µç×ÓÓʼþµØÖ·:jbwang@xtu.edu.cn; xlzhong@xtu.edu.cn
»ù½ð×ÊÖúÖÂл
»ù½ð×ÊÖú»ú¹¹        ÊÚȨºÅ
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
Foundation for the Author of National Excellent Doctoral Dissertation of PR China        
201143
Innovation Fund Project for Graduate Student of Hunan Province        
CX2012B246
²é¿´»ù½ð×ÊÖúÐÅÏ¢   
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EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY, 6 RUE DES FRERES LUMIERE, MULHOUSE, 68200, FRANCE
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Ñо¿·½Ïòhysics
Web of Science Àà±ðhysics, Multidisciplinary
ÎÄÏ×ÐÅÏ¢
ÎÄÏ×ÀàÐÍ:Article
ÓïÖÖ:English
Èë²ØºÅ: WOS:000321118600032
ISSN: 0295-5075
ÆÚ¿¯ÐÅÏ¢
Impact Factor (Ó°ÏìÒò×Ó): Journal Citation Reports®
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IDS ºÅ: 173YF
Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 27
Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 1
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