Magnetic properties and magnetocaloric effect around phase boundary in La(FexAl1-x)(13) compounds
文献类型：期刊论文
| 作者 | Hu, FX ; Shen, BG ; Sun, JR ; Wang, GJ ; Gao, J |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2007 |
| 卷号 | 101期号:9 |
| ISSN号 | 0021-8979 |
| 中文摘要 | Magnetic properties and magnetocaloric effect (MCE) around phase boundary were investigated in La(FexAl1-x)(13) compounds. We tuned the Fe content from 0.86 to 0.89 and observed a gradual change from ferromagnetic (F) to weak antiferromagnetic (AF) state. A completely F ground state at x=0.86 is followed by the emergence of AF coupling at x=0.87 and 0.88, in which two spaced transitions appear, one at T-O from F to AF and the other at T-N from AF to paramagnetic state. Continuously increasing Fe to x=0.89 results in a completely AF ground state. The magnetic properties of sample x=0.89 is especially interesting under an increasing external field. The state under a field of around 3.2 T shows two successive transitions, predicting that two peaks may appear in the temperature dependent magnetic entropy change Delta S. Maxwell relation was employed to calculate Delta S. With the emergence and enhancement of AF coupling, the Delta S profile evolves from a single-peak shape at x=0.86 to a nearly constant-peak shape at x=0.87 and 0.88, and then to two-peak shape at x=0.89. The influence of Fe content on magnetic properties, metamagnetic transition behavior, and MCE is discussed. |
| 收录类别 | SCI |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/41300]  |
| 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 | Hu, FX,Shen, BG,Sun, JR,et al. Magnetic properties and magnetocaloric effect around phase boundary in La(FexAl1-x)(13) compounds[J]. JOURNAL OF APPLIED PHYSICS,2007,101(9). |
| APA | Hu, FX,Shen, BG,Sun, JR,Wang, GJ,&Gao, J.(2007).Magnetic properties and magnetocaloric effect around phase boundary in La(FexAl1-x)(13) compounds.JOURNAL OF APPLIED PHYSICS,101(9). |
| MLA | Hu, FX,et al."Magnetic properties and magnetocaloric effect around phase boundary in La(FexAl1-x)(13) compounds".JOURNAL OF APPLIED PHYSICS 101.9(2007). |
入库方式： OAI收割
来源：物理研究所
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