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  4. 中科院强磁场科学中心
Evidence of emerging Griffiths singularity in La-0.5 Sr-0.5 MnO3 nanocrystalline probed by magnetization and electron paramagnetic resonance

文献类型：期刊论文

作者Zhang, Xiyuan1; Fan, Jiyu1; Xu, Lisa1; Tong, Wei2; Hu, Dazhi1; He, Xun3; Zhang, Lei2; Pi, Li2; Zhang, Yuheng2
刊名MATERIALS CHEMISTRY AND PHYSICS
出版日期2016-06-01
卷号175期号:无页码:62-67
关键词Magnetic Materials Electron Resonance Magnetic Properties Phase Transitions
DOI10.1016/j.matchemphys.2016.02.068
文献子类Article
英文摘要We present an investigation of Griffiths singularity in La-0.5 Sr-0.5 MnO3 nanocrystalline by means of magnetic susceptibility and electron paramagnetic resonance (EPR). An unusual platform was found in paramagnetic region. Based on the analysis of EPR spectrum and magnetization variation across the whole temperature range of phase transition, we confirm it is due to the presence of Griffiths singularity rather than a superparamagnetic state in the nanocrystalline system. Such a singularity phase is constituted with some correlated ferromagnetic clusters which embed in paramagnetic matrix. Although they form ferromagnetic spin correlation, the system do not yield any spontaneous magnetization. According to core-shell model, the emergence of Griffiths singularity can be considered due to the presence of local ferromagnetic fluctuations originated from surface spin disorder as the sample size is confined to nanoscale. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词SPIN DYNAMICS ; TEMPERATURE ; MANGANITES ; PHASE ; PEROVSKITES ; TRANSITION ; BEHAVIOR ; FILMS
WOS研究方向Materials Science
语种英语
WOS记录号WOS:000374612000008
资助机构Jiangsu Innovation Program for Graduate Education(KYZZ-0090) ; Jiangsu Innovation Program for Graduate Education(KYZZ-0090) ; Jiangsu Innovation Program for Graduate Education(KYZZ-0090) ; Jiangsu Innovation Program for Graduate Education(KYZZ-0090) ; Jiangsu Innovation Program for Graduate Education(KYZZ-0090) ; Jiangsu Innovation Program for Graduate Education(KYZZ-0090) ; Jiangsu Innovation Program for Graduate Education(KYZZ-0090) ; Jiangsu Innovation Program for Graduate Education(KYZZ-0090) ; National Nature Science Foundation of China(U1332140 ; National Nature Science Foundation of China(U1332140 ; National Nature Science Foundation of China(U1332140 ; National Nature Science Foundation of China(U1332140 ; National Nature Science Foundation of China(U1332140 ; National Nature Science Foundation of China(U1332140 ; National Nature Science Foundation of China(U1332140 ; National Nature Science Foundation of China(U1332140 ; 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) ; 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) ; 11574322) ; 11574322) ; 11574322) ; 11574322) ; 11574322) ; 11574322) ; 11574322) ; 11574322) ; Jiangsu Innovation Program for Graduate Education(KYZZ-0090) ; Jiangsu Innovation Program for Graduate Education(KYZZ-0090) ; Jiangsu Innovation Program for Graduate Education(KYZZ-0090) ; Jiangsu Innovation Program for Graduate Education(KYZZ-0090) ; Jiangsu Innovation Program for Graduate Education(KYZZ-0090) ; Jiangsu Innovation Program for Graduate Education(KYZZ-0090) ; Jiangsu Innovation Program for Graduate Education(KYZZ-0090) ; Jiangsu Innovation Program for Graduate Education(KYZZ-0090) ; National Nature Science Foundation of China(U1332140 ; National Nature Science Foundation of China(U1332140 ; National Nature Science Foundation of China(U1332140 ; National Nature Science Foundation of China(U1332140 ; National Nature Science Foundation of China(U1332140 ; National Nature Science Foundation of China(U1332140 ; National Nature Science Foundation of China(U1332140 ; National Nature Science Foundation of China(U1332140 ; 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) ; 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) ; 11574322) ; 11574322) ; 11574322) ; 11574322) ; 11574322) ; 11574322) ; 11574322) ; 11574322)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/22372]  
专题合肥物质科学研究院_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, High Field Magnet Lab, Hefei 230031, Peoples R China
3.Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Xiyuan,Fan, Jiyu,Xu, Lisa,et al. Evidence of emerging Griffiths singularity in La-0.5 Sr-0.5 MnO3 nanocrystalline probed by magnetization and electron paramagnetic resonance[J]. MATERIALS CHEMISTRY AND PHYSICS,2016,175(无):62-67.
APA Zhang, Xiyuan.,Fan, Jiyu.,Xu, Lisa.,Tong, Wei.,Hu, Dazhi.,...&Zhang, Yuheng.(2016).Evidence of emerging Griffiths singularity in La-0.5 Sr-0.5 MnO3 nanocrystalline probed by magnetization and electron paramagnetic resonance.MATERIALS CHEMISTRY AND PHYSICS,175(无),62-67.
MLA Zhang, Xiyuan,et al."Evidence of emerging Griffiths singularity in La-0.5 Sr-0.5 MnO3 nanocrystalline probed by magnetization and electron paramagnetic resonance".MATERIALS CHEMISTRY AND PHYSICS 175.无(2016):62-67.

入库方式： OAI收割

来源：合肥物质科学研究院

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