Structure and cryogenic magnetocaloric effects of NaREO2 (RE = Er, Ho) compounds

doi:10.1016/j.ceramint.2023.12.350

IMR OpenIR

	Structure and cryogenic magnetocaloric effects of NaREO2 (RE = Er, Ho) compounds
	Wang, Zhishuai 1; Zhang, Hui 2; Sun, Naikun 1; Wang, Hao 1; Guo, Jie 2,3; Zhao, Xinguo 2; Huang, Jiaohong 4; Li, Bing 2; Zhang, Zhidong 2
通讯作者	Sun, Naikun(naikunsun@163.com) ; Zhao, Xinguo(xgzhao@imr.ac.cn)
	2024-04-01
发表期刊	CERAMICS INTERNATIONAL
ISSN	0272-8842
卷号	50 期号:7 页码:10385-10391
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.
关键词	NaErO 2 and NaHoO 2 compounds Cryogenic Magnetic refrigeration Magnetocaloric effect Rare-earth based magnetic materials
资助者	National Natural Science Foundation of China
DOI	10.1016/j.ceramint.2023.12.350
收录类别	SCI
语种	英语
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
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:001196900800001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/185326
专题	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.