Magnetization jumps and exchange bias induced by a partially disordered antiferromagnetic state in (FeTiO3)(0.9)-(Fe2O3)(0.1)
文献类型：期刊论文
| 作者 | Song, P ; Li, GK ; Ma, L ; Zhen, CM ; Hou, DL ; Wang, WH ; Liu, EK ; Chen, JL ; Wu, GH |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2014 |
| 卷号 | 115期号:21 |
| ISSN号 | 0021-8979 |
| 通讯作者 | Ma, L (reprint author), Hebei Normal Univ, Hebei Adv Thin Films Lab, Dept Phys, Shijiazhuang 050024, Peoples R China. |
| 中文摘要 | Magnetization jumps (MJs) and the exchange bias (EB) effect are simultaneously observed in the mixed-spin oxide (FeTiO3)(0.9)-(Fe2O3)(0.1) at 2.0 K. Dc and ac susceptibility measurements confirm a reentrant spin glass phase with a partially disordered antiferromagnetic (PDA) state below the irreversibility temperature (T-ir = 60 K). Antiferromagnetic (AFM) Fe3+ clusters are nested in AFM Fe2+ lattices forming a triangular lattice, in which 2/3 of the magnetic moments order antiferromagnetically with each other leaving the remaining 1/3 "confused." This geometric frustration in the triangular lattice leads to a PDA state that is the ground state of the AFM triangular configuration. The PDA state, in the presence of a critical trigger field, evolves into a ferromagnetic (FM) state, and induces the AFM spins of the Fe2+ ions to enter a FM state, resulting in the MJs. Meanwhile, the FM spins of Fe2+ can serve as the pinned phase, and the AFM spins of Fe3+ can serve as the pinning phase, resulting in the EB effect. Thus, we point out that the PDA state is very likely to be at the origin of the MJs and the EB effect. (C) 2014 AIP Publishing LLC. |
| 资助信息 | Hebei province post-doctoral research project; National Natural Science Foundation of China [51101049, 51271071]; Hebei Science Foundation [A2014205051, E2012205057, A2013205101, 12965136D] |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59148]  |
| 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 | Song, P,Li, GK,Ma, L,et al. Magnetization jumps and exchange bias induced by a partially disordered antiferromagnetic state in (FeTiO3)(0.9)-(Fe2O3)(0.1)[J]. JOURNAL OF APPLIED PHYSICS,2014,115(21). |
| APA | Song, P.,Li, GK.,Ma, L.,Zhen, CM.,Hou, DL.,...&Wu, GH.(2014).Magnetization jumps and exchange bias induced by a partially disordered antiferromagnetic state in (FeTiO3)(0.9)-(Fe2O3)(0.1).JOURNAL OF APPLIED PHYSICS,115(21). |
| MLA | Song, P,et al."Magnetization jumps and exchange bias induced by a partially disordered antiferromagnetic state in (FeTiO3)(0.9)-(Fe2O3)(0.1)".JOURNAL OF APPLIED PHYSICS 115.21(2014). |
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来源：物理研究所
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