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Short-range antiferromagnetic correlations and large magnetic entropy change in (La0.5Pr0.5)(0.67)Ca0.33MnO3
Chen, Lili1; Fan, Jiyu1; Tong, Wei2; Hu, Dazhi1; Zhang, Lei2; Ling, Langsheng2; Pi, Li2; Zhang, Yuheng2; Yang, Hao1
2018
发表期刊JOURNAL OF MATERIALS SCIENCE
卷号53期号:1页码:323-332
摘要We report a detailed study of magnetic properties in manganite (La0.5Pr0.5)(0.67)Ca0.33MnO3. In contrast to the usual beliefs, it shows an abnormal upturn deviation from the Curie-Weiss law on the inverse susceptibility curve. Such a non-Griffiths-like phase is further confirmed from the inverse double integrated intensities of electron paramagnetic resonance spectrum. Because La ions are substituted by Pr ions with 50% concentrations, the ratio of three ions (La, Pr, Ca) is close to 1 on A-site sublattice. As a result, some short-range antiferromagnetic (CO AFM) phases come into being in the system due to the existence of localized charge ordering states. Therefore, the upturn deviation from Curie-Weiss law originates from the appearance of short-range CO AFM correlations above . Additionally, a magnetic field-driven-metamagnetic transition is found, which gives a main contribution for the large magnetic entropy change (MEC) observed in this sample. Both the Arrott plot and the renormalized MEC curves testify that this transition belongs to first-order magnetic transition. The insignificant hysteresis loop indicate that the inevitable thermal hysteresis can be ignored in the present first-order material implying that it is a potential candidate for the cryogenic temperature magnetic refrigeration.
文章类型Article
WOS标题词Science & Technology ; Technology
资助者National Nature Science Foundation of China(U1632122 ; National Key Research and Development Program of China(2017YFA0403502) ; Fundamental Research Funds for the Central Universities(NE2016102 ; Foundation of Graduate Innovation Center In NUAA(kfjj20160804) ; 11574322) ; NP2017103) ; National Nature Science Foundation of China(U1632122 ; National Key Research and Development Program of China(2017YFA0403502) ; Fundamental Research Funds for the Central Universities(NE2016102 ; Foundation of Graduate Innovation Center In NUAA(kfjj20160804) ; 11574322) ; NP2017103)
DOI10.1007/s10853-017-1518-3
关键词[WOS]PHASE-SEPARATION ; MAGNETORESISTANCE ; RESISTIVITY ; TRANSITIONS ; MANGANITES ; TRANSPORT ; PHYSICS ; MODELS ; FILMS
收录类别SCI
语种英语
资助者National Nature Science Foundation of China(U1632122 ; National Key Research and Development Program of China(2017YFA0403502) ; Fundamental Research Funds for the Central Universities(NE2016102 ; Foundation of Graduate Innovation Center In NUAA(kfjj20160804) ; 11574322) ; NP2017103) ; National Nature Science Foundation of China(U1632122 ; National Key Research and Development Program of China(2017YFA0403502) ; Fundamental Research Funds for the Central Universities(NE2016102 ; Foundation of Graduate Innovation Center In NUAA(kfjj20160804) ; 11574322) ; NP2017103)
WOS研究方向Materials Science
WOS类目Materials Science, Multidisciplinary
WOS记录号WOS:000412900500017
引用统计
文献类型期刊论文
条目标识符http://ir.hfcas.ac.cn:8080/handle/334002/33784
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.Chinese Acad Sci, Anhui Key Lab Condensed Matter Phys Extreme Condi, High Field Magnet Lab, Hefei 230031, Anhui, Peoples R China
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Chen, Lili,Fan, Jiyu,Tong, Wei,et al. Short-range antiferromagnetic correlations and large magnetic entropy change in (La0.5Pr0.5)(0.67)Ca0.33MnO3[J]. JOURNAL OF MATERIALS SCIENCE,2018,53(1):323-332.
APA Chen, Lili.,Fan, Jiyu.,Tong, Wei.,Hu, Dazhi.,Zhang, Lei.,...&Yang, Hao.(2018).Short-range antiferromagnetic correlations and large magnetic entropy change in (La0.5Pr0.5)(0.67)Ca0.33MnO3.JOURNAL OF MATERIALS SCIENCE,53(1),323-332.
MLA Chen, Lili,et al."Short-range antiferromagnetic correlations and large magnetic entropy change in (La0.5Pr0.5)(0.67)Ca0.33MnO3".JOURNAL OF MATERIALS SCIENCE 53.1(2018):323-332.
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