Magnetic properties and magnetocaloric effect of Nd(Mn(1-x)Fe(x))(2)Ge(2) compounds
文献类型：期刊论文
| 作者 | Y. Q. Chen ; J. Luo ; J. K. Liang ; J. B. Li ; G. H. Rao |
| 刊名 | Journal of Alloys and Compounds
 |
| 出版日期 | 2010 |
| 卷号 | 489期号:1页码:13-19 |
| 关键词 | Metals and alloys Magnetocaloric X-ray diffraction room-temperature applications neutron-diffraction phase-transitions crystal-structure solid-solution refrigeration silicides mn 0-less-than-or-equal-to-x-less-than-or-equal-to-1 mnas1-xsbx |
| ISSN号 | 0925-8388 |
| 中文摘要 | Polycrystalline Nd(Mn(1-x)Fe(x))(2)Ge(2) (0 <= x <= 1) compounds have been prepared by arc-melting. X-ray powder diffraction analysis shows that all samples crystallize in the ThCr(2)Si(2)-type structure with the space group 14/mmm. The substitution of Fe for Mn results in decreases of the lattice constants a, c and the unit-cell volume V. Magnetic properties and magnetocaloric effect of the compounds Nd(Mn(0.9)Fe(0.1))(2)Ge(2) and Nd(Mn(0.8)Fe(0.2))(2)Ge(2) have been studied by magnetic measurements. A spin reorientation transition at about 188 K is observed for Nd(Mn(0.9)Fe(0.1))(2)Ge(2). The Nd(Mn(0.8)Fe(0.2))(2)Ge(2) compound shows more complicated magnetic behavior, which is characterized by four magnetic ordering states below room temperature. The maximum values of the magnetic entropy change are 2.35 and 1.84 J kg(-1) K(-1) for x = 0.1 and 0.2, respectively, under the applied field changing from 0 to 5T. The relative cooling powers of Nd(Mn(0.9)Fe(0.1))(2)Ge(2) and Nd(Mn(0.8)Fe(0.2))(2)Ge(2) are 145.9 and 133.8 J kg(-1) under an applied field change of 5T. (C) 2009 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31038]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Y. Q. Chen,J. Luo,J. K. Liang,et al. Magnetic properties and magnetocaloric effect of Nd(Mn(1-x)Fe(x))(2)Ge(2) compounds[J]. Journal of Alloys and Compounds,2010,489(1):13-19. |
| APA | Y. Q. Chen,J. Luo,J. K. Liang,J. B. Li,&G. H. Rao.(2010).Magnetic properties and magnetocaloric effect of Nd(Mn(1-x)Fe(x))(2)Ge(2) compounds.Journal of Alloys and Compounds,489(1),13-19. |
| MLA | Y. Q. Chen,et al."Magnetic properties and magnetocaloric effect of Nd(Mn(1-x)Fe(x))(2)Ge(2) compounds".Journal of Alloys and Compounds 489.1(2010):13-19. |
入库方式： OAI收割
来源：金属研究所
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