Institutional Repository of Chinese Acad Sci, High Field Magnet Lab,Hefei 230031, Anhui, Peoples R China
| Evidence of emerging Griffiths singularity in La-0.5 Sr-0.5 MnO3 nanocrystalline probed by magnetization and electron paramagnetic resonance | |
Zhang, Xiyuan1; Fan, Jiyu1; Xu, Lisa1; Tong, Wei2 ; Hu, Dazhi1; He, Xun3; Zhang, Lei2; Pi, Li2; Zhang, Yuheng2
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| 2016-06-01 | |
| 发表期刊 | MATERIALS CHEMISTRY AND PHYSICS
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| 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. |
| 文章类型 | Article |
| 关键词 | Magnetic Materials Electron Resonance Magnetic Properties Phase Transitions |
| WOS标题词 | Science & Technology ; Technology |
| DOI | 10.1016/j.matchemphys.2016.02.068 |
| 关键词[WOS] | SPIN DYNAMICS ; TEMPERATURE ; MANGANITES ; PHASE ; PEROVSKITES ; TRANSITION ; BEHAVIOR ; FILMS |
| 收录类别 | SCI |
| 语种 | 英语 |
| 项目资助者 | 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) |
| WOS研究方向 | Materials Science |
| WOS类目 | Materials Science, Multidisciplinary |
| WOS记录号 | WOS:000374612000008 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.hfcas.ac.cn:8080/handle/334002/22372 |
| 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, 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. |
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| Evidence of emerging（931KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
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