Giant anisotropy of the magnetoresistance and the 'spin valve' effect in antiferromagnetic Nd(2-x)Ce(x)CuO(4)
文献类型：期刊论文
| 作者 | Wu, T ; Wang, CH ; Wu, G ; Fang, DF ; Luo, JL ; Liu, GT ; Chen, XH |
| 刊名 | JOURNAL OF PHYSICS-CONDENSED MATTER
 |
| 出版日期 | 2008 |
| 卷号 | 20期号:27 |
| 关键词 | NONCOLLINEAR MAGNETIC-STRUCTURE NEUTRON-DIFFRACTION PHASE-TRANSITIONS ND2CUO4 PR2CUO4 CU ND YBA2CU3O6+X EXCITATIONS SCATTERING |
| ISSN号 | 0953-8984 |
| 通讯作者 | Chen, XH: Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China. |
| 中文摘要 | Electrical resistivity, dc magnetization, ac magnetic susceptibility, and magnetic relaxation studies of polycrystalline Pr(0.2)La(0.8)Fe(11.4)Al(1.6) compound have been carried out. On the basis of the measurements of isofield magnetization and ac magnetic susceptibility, we provide evidence for phase coexistence (the appearance of the ferromagnetic phase in the antiferromagnetic matrix) rather than a spin glass, resulting in a cusp observed at similar to 70 K in the zero-field-cooled thermal magnetization curve under low fields. The ferromagnetic clusters or nuclei appear randomly in the antiferromagnetic matrix according to the electrical resistivity results. An excellent magnetic-resistive correspondence is observed under medium fields. Under these fields large relaxation effects are presented in the vicinity of the phase transition temperature. Nonuniform variation of the relaxation rate with temperature gives a clear picture of the nucleation and growth of phases. Distinct metastable behavior is shown during the phase transition, which brings about the step-like behavior in the various magnetization curves. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/38719]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wu, T,Wang, CH,Wu, G,et al. Giant anisotropy of the magnetoresistance and the 'spin valve' effect in antiferromagnetic Nd(2-x)Ce(x)CuO(4)[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2008,20(27). |
| APA | Wu, T.,Wang, CH.,Wu, G.,Fang, DF.,Luo, JL.,...&Chen, XH.(2008).Giant anisotropy of the magnetoresistance and the 'spin valve' effect in antiferromagnetic Nd(2-x)Ce(x)CuO(4).JOURNAL OF PHYSICS-CONDENSED MATTER,20(27). |
| MLA | Wu, T,et al."Giant anisotropy of the magnetoresistance and the 'spin valve' effect in antiferromagnetic Nd(2-x)Ce(x)CuO(4)".JOURNAL OF PHYSICS-CONDENSED MATTER 20.27(2008). |
入库方式： OAI收割
来源：物理研究所
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