Structure and cryogenic magnetocaloric effects of NaREO2 (RE = Er, Ho) compounds
文献类型：期刊论文
| 作者 | Wang, Zhishuai1; Zhang, Hui2; Sun, Naikun1; Wang, Hao1; Guo, Jie2,3; Zhao, Xinguo2; Huang, Jiaohong4; Li, Bing2; Zhang, Zhidong2 |
| 刊名 | CERAMICS INTERNATIONAL
 |
| 出版日期 | 2024-04-01 |
| 卷号 | 50期号:7页码:10385-10391 |
| 关键词 | NaErO 2 and NaHoO 2 compounds Cryogenic Magnetic refrigeration Magnetocaloric effect Rare-earth based magnetic materials |
| ISSN号 | 0272-8842 |
| DOI | 10.1016/j.ceramint.2023.12.350 |
| 通讯作者 | Sun, Naikun(naikunsun@163.com) ; Zhao, Xinguo(xgzhao@imr.ac.cn) |
| 英文摘要 | Rare-earth (RE) based oxides have presented great application prospects in low-temperature magnetic refrigeration technology. Thus far, studies on magnetic and especially magnetocaloric properties of alkali-metal RE oxides are limited, largely due to the difficulty in synthesizing these oxides. In this work, NaREO2 (RE = Er, Ho) compounds with both the rhombohedral (R 3 m space group) and cubic (Fm 3 m space group) structures were prepared by a facile ball-milling-aided sintering approach. The cubic structural compounds exhibit a spherical microstructure composed of vertically-grown irregular hexahedra, which sharply contrast with a loose lamellar microstructure of the rhombohedral structural compound. The as-prepared NaHoO2 or NaErO2 compound exhibits an antiferromagnetic ordering of RE3+ moments at a temperature of 2.4 K or lower than 2 K respectively. An excellent comprehensive magnetic refrigeration performance at cryogenic temperatures in a low magnetic field change of 0-20 kOe was obtained in these compounds, including a complete reversibility of the magnetocaloric effect, a maximal magnetic-entropy change Delta SM at 2 K of 12 J/kg center dot K for the rhombohedral NaErO2 and a relative cooling power (RCP) of 79.7 J/kg for the cubic NaHoO2. |
| 资助项目 | National Natural Science Foundation of China[52171187] ; National Natural Science Foundation of China[52271192] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001196900800001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Sun, Naikun; Zhao, Xinguo |
| 作者单位 | 1.Shenyang Ligong Univ, Sch Sci, Shenyang 110159, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 4.Baotou Res Inst Rare Earths, Baotou 014030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Zhishuai,Zhang, Hui,Sun, Naikun,et al. Structure and cryogenic magnetocaloric effects of NaREO2 (RE = Er, Ho) compounds[J]. CERAMICS INTERNATIONAL,2024,50(7):10385-10391. |
| APA | Wang, Zhishuai.,Zhang, Hui.,Sun, Naikun.,Wang, Hao.,Guo, Jie.,...&Zhang, Zhidong.(2024).Structure and cryogenic magnetocaloric effects of NaREO2 (RE = Er, Ho) compounds.CERAMICS INTERNATIONAL,50(7),10385-10391. |
| MLA | Wang, Zhishuai,et al."Structure and cryogenic magnetocaloric effects of NaREO2 (RE = Er, Ho) compounds".CERAMICS INTERNATIONAL 50.7(2024):10385-10391. |
入库方式： OAI收割
来源：金属研究所
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