Magnetic and reversible magnetocaloric properties of (Gd1-xDyx)(4)Co-3 ferrimagnets
文献类型：期刊论文
| 作者 | Zhang, Q.1; Li, B.; Zhao, X. G.; Zhang, Z. D. |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2009-03-01 |
| 卷号 | 105期号:5页码:4 |
| 关键词 | cobalt alloys dysprosium alloys entropy ferrimagnetic materials gadolinium alloys magnetic cooling magnetic structure magnetic transition temperature |
| ISSN号 | 0021-8979 |
| DOI | 10.1063/1.3075627 |
| 通讯作者 | Zhang, Q.(qzhangemail@gmail.com) |
| 英文摘要 | Magnetic properties and magnetocaloric effect of the ferrimagnetic compounds Gd4Co3 and (Gd0.9Dy0.1)(4)Co-3 have been studied. In Gd4Co3, two successive magnetic-entropy changes occur due to a spin-reorientation transition at T-SR=163 K and a ferrimagnetic-magnetic ordering transition at T-C=220 K. For a field change from 0 to 5 T, -Delta S-M(max) at T-C is 5.74 J/kg K, the full width at half maximum (delta T-FWHM) of the -Delta S-M versus T curve has a high value of 131 K, and the refrigerant capacity is as high as 575 J/kg. T-C can easily be tuned by Dy substitution for Gd and the magnetic-entropy change is increased simultaneously. -Delta S-M(max) of (Gd0.9Dy0.1)(4)Co-3 at T-C=145 K for the same field change has increased to 8.47 J/kg K. Our studies suggest that the successive magnetic transitions could enlarge the temperature interval, which makes this type of material meaningful for magnetic refrigeration in wider temperature regions than conventional materials. |
| 资助项目 | National Natural Science Foundation of China[30331030] ; National Natural Science Foundation of China[50831006] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000264156300057 |
| 出版者 | AMER INST PHYSICS |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/95949]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhang, Q. |
| 作者单位 | 1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Q.,Li, B.,Zhao, X. G.,et al. Magnetic and reversible magnetocaloric properties of (Gd1-xDyx)(4)Co-3 ferrimagnets[J]. JOURNAL OF APPLIED PHYSICS,2009,105(5):4. |
| APA | Zhang, Q.,Li, B.,Zhao, X. G.,&Zhang, Z. D..(2009).Magnetic and reversible magnetocaloric properties of (Gd1-xDyx)(4)Co-3 ferrimagnets.JOURNAL OF APPLIED PHYSICS,105(5),4. |
| MLA | Zhang, Q.,et al."Magnetic and reversible magnetocaloric properties of (Gd1-xDyx)(4)Co-3 ferrimagnets".JOURNAL OF APPLIED PHYSICS 105.5(2009):4. |
入库方式： OAI收割
来源：金属研究所
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