Low-field large reversible magnetocaloric effect in the RNi2Si2 (R=Dy, Ho, Er) compounds
文献类型：期刊论文
| 作者 | Zuo, WL ; Hu, FX ; Jirong, S ; Shen, BG |
| 刊名 | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
 |
| 出版日期 | 2013 |
| 卷号 | 344页码:96 |
| 关键词 | RNi2Si2 compound Magnetocaloric effect Magnetic entropy change |
| ISSN号 | 0304-8853 |
| 通讯作者 | Zuo, WL (reprint author), Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100190, Peoples R China. |
| 中文摘要 | The magnetocaloric effect (MCE) of RNi2Si2 (R=Dy, Ho, Er) compounds with the ThCr2Si2-type body-centered tetragonal structure are investigated. RNi2Si2 compounds are antiferromagnetic (AFM) with Neel temperature T-N = 6.5 K, 4.9 K, and 3.5 K, respectively. A field-induced metamagnetic transition from AFM-to-ferromagnetic (FM) state is found below T-N, which leads to a large MCE around the T-N. The maximal values of magnetic entropy change (Delta S-M) for RNi2Si2 (R=Dy, Ho, Er) reach -6.9, -10.9, and -15.1 Jkg(-1) K-1 and -21.3, -21.7, and -21.3 Jkg(-1) K-1 without thermal and magnetic hysteresis losses for the field changes of 0-2 T and 0-5 T, respectively. The large Delta S-M is associated with the field-induced first-order AFM-FM metamagnetic transition and low critical field. The excellent MCE under low field change without hysteresis loss suggests that RNi2Si2 (R=Dy, Ho, Er) can be an appropriate candidate for magnetic refrigerant in liquid helium temperature ranges. (C) 2013 Elsevier B.V. All rights reserved. |
| 资助信息 | National Natural Science Foundation of China; Hi-Tech Research and Development program of China; Key Research Program of the Chinese Academy of Sciences; National Basic Research of China |
| 语种 | 英语 |
| 公开日期 | 2014-01-16 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57174]  |
| 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 | Zuo, WL,Hu, FX,Jirong, S,et al. Low-field large reversible magnetocaloric effect in the RNi2Si2 (R=Dy, Ho, Er) compounds[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2013,344:96. |
| APA | Zuo, WL,Hu, FX,Jirong, S,&Shen, BG.(2013).Low-field large reversible magnetocaloric effect in the RNi2Si2 (R=Dy, Ho, Er) compounds.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,344,96. |
| MLA | Zuo, WL,et al."Low-field large reversible magnetocaloric effect in the RNi2Si2 (R=Dy, Ho, Er) compounds".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 344(2013):96. |
入库方式： OAI收割
来源：物理研究所
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