Room-temperature large magnetocaloric effect and critical behavior in La0.6Dy0.1Sr0.3MnO3

doi:10.1016/j.ceramint.2016.02.035

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	Room-temperature large magnetocaloric effect and critical behavior in La0.6Dy0.1Sr0.3MnO3
	Xu, Lisha 1; Chen, Lili 1; Fan, Jiyu 1; Baerner, Klaus 2; Zhang, Lei3 ; Zhu, Yan 1; Pi, Li3 ; Zhang, Yuheng3 ; Shi, Daning 1
	2016-05-15
发表期刊	CERAMICS INTERNATIONAL
摘要	The effect of dysprosium incorporation in La0.7Sr0.3MnO3 perovskite manganite on its magnetic properties, magnetocaloric effect and critical behavior was investigated. The temperature dependent magnetization data exhibit a sharp paramagnetic-ferromagnetic transition at T-c=307 K, which nature has been identified to be a second-order transition by the scaling laws for magnetocaloric effect. The maximum magnetic entropy change and the relative cooling power are found to be, respectively, 8.314 J/kg K and 187 J/kg for a 5 T magnetic field change without a hysteresis loss, making this material a promising candidate for magnetic refrigeration at room temperature. To study the critical behavior of the paramagnetic-ferromagnetic transition, some related critical exponents (beta, gamma, and delta) have been also calculated. The values of critical exponents indicate that the present phase transition does not belong to the common transition classes but shows some abnormal variation. We suggest that the induced lattice disordering and magnetic disordering due to Dysprosium incorporation are essential reasons for the presence of a large magnetocaloric effect and of an anomalous ferromagnetic phase transition in the present material (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
文章类型	Article
关键词	Manganite Magnetocaloric Effect Phase Transitions
WOS标题词	Science & Technology ; Technology
DOI	10.1016/j.ceramint.2016.02.035
关键词[WOS]	MAGNETIC ENTROPY CHANGE ; MAGNETORESISTANCE ANOMALIES ; SINGLE-CRYSTAL ; MANGANITE ; TRANSITION ; REFRIGERATION ; LA1-XSRXMNO3 ; ALLOYS
收录类别	SCI
语种	英语
项目资助者	National Nature Science Foundation of China(11574322 ; National Nature Science Foundation of China(11574322 ; National Nature Science Foundation of China(11574322 ; National Nature Science Foundation of China(11574322 ; Foundation for Users with Potential of Hefei Science Center (CAS)(2015HSC-UP001) ; Foundation for Users with Potential of Hefei Science Center (CAS)(2015HSC-UP001) ; Foundation for Users with Potential of Hefei Science Center (CAS)(2015HSC-UP001) ; Foundation for Users with Potential of Hefei Science Center (CAS)(2015HSC-UP001) ; 11204131 ; 11204131 ; 11204131 ; 11204131 ; 11204270 ; 11204270 ; 11204270 ; 11204270 ; U1332140) ; U1332140) ; U1332140) ; U1332140)
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:000374075300048
引用统计	被引频次：47[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/22361
专题	中科院强磁场科学中心
作者单位	1.Nanjing Univ Aeronaut & Astronaut, Dept Appl Phys, Nanjing 210016, Jiangsu, Peoples R China 2.Univ Gottingen, Dept Phys, Tammanstr 1, D-37077 Gottingen, Germany 3.Chinese Acad Sci, High Magnet Field Lab, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Xu, Lisha,Chen, Lili,Fan, Jiyu,et al. Room-temperature large magnetocaloric effect and critical behavior in La0.6Dy0.1Sr0.3MnO3[J]. CERAMICS INTERNATIONAL,2016,42(7):8234-8239.
APA	Xu, Lisha.,Chen, Lili.,Fan, Jiyu.,Baerner, Klaus.,Zhang, Lei.,...&Shi, Daning.(2016).Room-temperature large magnetocaloric effect and critical behavior in La0.6Dy0.1Sr0.3MnO3.CERAMICS INTERNATIONAL,42(7),8234-8239.
MLA	Xu, Lisha,et al."Room-temperature large magnetocaloric effect and critical behavior in La0.6Dy0.1Sr0.3MnO3".CERAMICS INTERNATIONAL 42.7(2016):8234-8239.

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