Tunable exchange bias in hard/soft SmMnO3/alpha-Mn2O3 composite with AFM structures
文献类型：期刊论文
| 作者 | Shen, H; Feng, P; Jiang, GC; Wu, AH |
| 刊名 | PHYSICA B-CONDENSED MATTER
 |
| 出版日期 | 2020-05-15 |
| ISSN号 | 0921-4526 |
| DOI | 10.1016/j.physb.2020.412084 |
| 文献子类 | Article |
| 英文摘要 | Exchange bias effect was effectively generated in a novel hard/soft SmMnO3 (similar to 93%)/alpha-Mn2O3 (similar to 7%) composite, with two different antiferromagnetic (AFM) states. Below 40 K, the magnetization hysteresis loops exhibit both a negative horizontal shift and a positive vertical shift. The horizontal shift is attributed to the reversal of soft alpha-Mn2O3 biased by hard SmMnO3. The vertical shift originates from the different degree of magnetization reversal of Mn2O3 and SmMnO3. The vertical shift decreases with increasing measuring field and finally approaches zero, while the horizontal shift still exists. At 20 K and 10 K, both of the horizontal shift and the vertical shift increase gradually with increasing cooling field. The exchange bias effect is weakened at 30 K and finally vanishes at 40 K. All these rich features suggest that the exchange coupling can be effectively tuned in SmMnO3/alpha-Mn2O3 system. The possible mechanism of this interesting behaviour is also proposed. |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.sic.ac.cn/handle/331005/28065]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Shen, H,Feng, P,Jiang, GC,et al. Tunable exchange bias in hard/soft SmMnO3/alpha-Mn2O3 composite with AFM structures[J]. PHYSICA B-CONDENSED MATTER,2020. |
| APA | Shen, H,Feng, P,Jiang, GC,&Wu, AH.(2020).Tunable exchange bias in hard/soft SmMnO3/alpha-Mn2O3 composite with AFM structures.PHYSICA B-CONDENSED MATTER. |
| MLA | Shen, H,et al."Tunable exchange bias in hard/soft SmMnO3/alpha-Mn2O3 composite with AFM structures".PHYSICA B-CONDENSED MATTER (2020). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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