Magnetic properties and magnetocaloric effect in Ho6-xErxMnBi2 compounds
文献类型:期刊论文
作者 | Wang, F ; Zhang, J ; Yuan, FY ; Cao, Y ; Gao, CJ ; Hao, YM ; Shen, J ; Sun, JR ; Shen, BG |
刊名 | JOURNAL OF APPLIED PHYSICS
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出版日期 | 2010 |
卷号 | 107期号:9 |
关键词 | ROOM-TEMPERATURE APPLICATIONS ENTROPY CHANGE REFRIGERATION TRANSITION |
ISSN号 | 0021-8979 |
通讯作者 | Wang, F: Tian Jin Univ Sci & Technol, Tianjin 300222, Peoples R China. |
中文摘要 | Magnetic properties and magnetocaloric effect of compounds Ho6-xErxMnBi2 (x=0,3,6) are investigated experimentally. All the compounds crystallize in the hexagonal Zr6CoAs2-type structure and show a sharp drop in the magnetization around their respective magnetic ordering temperature, which is 201 K (x=0), 147 K (x=3), and 98 K (x=6), respectively. Either thermal or magnetic hysteresis around the phase transition is not observed, suggesting a second order phase transition nature. The magnetic entropy change (Delta S-m) calculated from the Maxwell relation using the collected magnetization data is 10.6 (x=6), 7.3 (x=3), and 5.0 J kg(-1) K-1 (x=0), respectively. The shape of the Delta S-m-T curve has a good symmetry below and above the magnetic ordering temperature, and the value of the magnetic entropy change increases monotonously with increasing field change. The calorimetric technique has also been used for Er6MnBi2 to check the credibility of the magnetic method. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3359812] |
收录类别 | SCI |
语种 | 英语 |
公开日期 | 2013-09-18 |
源URL | [http://ir.iphy.ac.cn/handle/311004/41302] ![]() |
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 | Wang, F,Zhang, J,Yuan, FY,et al. Magnetic properties and magnetocaloric effect in Ho6-xErxMnBi2 compounds[J]. JOURNAL OF APPLIED PHYSICS,2010,107(9). |
APA | Wang, F.,Zhang, J.,Yuan, FY.,Cao, Y.,Gao, CJ.,...&Shen, BG.(2010).Magnetic properties and magnetocaloric effect in Ho6-xErxMnBi2 compounds.JOURNAL OF APPLIED PHYSICS,107(9). |
MLA | Wang, F,et al."Magnetic properties and magnetocaloric effect in Ho6-xErxMnBi2 compounds".JOURNAL OF APPLIED PHYSICS 107.9(2010). |
入库方式: OAI收割
来源:物理研究所
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