First-order magnetic transition, magnetocaloric effect and moment formation in MnFe(P,Ge) magnetocaloric materials revisited by x-ray magnetic circular dichroism
文献类型：期刊论文
| 作者 | Wurentuya, B.1,2,3; Yibole, H.2; Guillou, F.2; Ou, Zhiqiang2; Zhang, Zhidong1,3; Tegus, O.2 |
| 刊名 | PHYSICA B-CONDENSED MATTER
 |
| 出版日期 | 2018-09-01 |
| 卷号 | 544页码:66-72 |
| 关键词 | Magnetocaloric effect Magnetic phase transition XMCD |
| ISSN号 | 0921-4526 |
| DOI | 10.1016/j.physb.2018.05.002 |
| 通讯作者 | Tegus, O.(tegusph@imnu.edu.cn) |
| 英文摘要 | Fe2P-based materials are attracting great interest for their giant magnetocaloric effect making them highly promising candidates for a new energy efficient-magnetic cooling technology. In light of recent results reported in the MnFe(P,Si) and MnFe(P,Si,B) series, here we revisit the effect of Ge substitution for P. By fixing the Mn/Fe ratio to unity while exploring a large range of Ge content, we isolate the effect Ge plays as metalloid element. In contrast to other metalloids (like Si, B or As), Ge substitution for P is found to spectacularly increase the Curie temperature, while preserving the first-order character of the transition. As a consequence, Ge substitution for P provides a mean to achieve giant magnetocaloric performances up to high temperatures (at least 465 K). In addition, the moment formation in MnFe(P,Ge) is investigated using an element specific and orbital selective magnetization probe, x-ray magnetic circular dichroism. The magnetic moments carried by Mn atoms are found to be significantly larger than that of Fe, providing a direct experimental support to reported band structure calculations and neutron diffraction experiments. |
| 资助项目 | National Natural Science Foundation of China[51161017] ; National Natural Science Foundation of China[51531008] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000434382300010 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/128349]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Tegus, O. |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 2.Inner Mongolia Normal Univ, Coll Phys & Elect Informat, Hohhot 010022, Peoples R China 3.Univ Chinese Acad Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wurentuya, B.,Yibole, H.,Guillou, F.,et al. First-order magnetic transition, magnetocaloric effect and moment formation in MnFe(P,Ge) magnetocaloric materials revisited by x-ray magnetic circular dichroism[J]. PHYSICA B-CONDENSED MATTER,2018,544:66-72. |
| APA | Wurentuya, B.,Yibole, H.,Guillou, F.,Ou, Zhiqiang,Zhang, Zhidong,&Tegus, O..(2018).First-order magnetic transition, magnetocaloric effect and moment formation in MnFe(P,Ge) magnetocaloric materials revisited by x-ray magnetic circular dichroism.PHYSICA B-CONDENSED MATTER,544,66-72. |
| MLA | Wurentuya, B.,et al."First-order magnetic transition, magnetocaloric effect and moment formation in MnFe(P,Ge) magnetocaloric materials revisited by x-ray magnetic circular dichroism".PHYSICA B-CONDENSED MATTER 544(2018):66-72. |
入库方式： OAI收割
来源：金属研究所
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