文献类型：期刊文献

英文题名：Structural, magnetic properties and large cryogenic magnetocaloric effect (MCE) in RE2MgTiO6 (RE = Tb, Dy, Ho and Er) double perovskite (DP) oxides

作者：Jia, Youshun[1];Wang, Jiaxin[1];Wang, Ziao[1];Chen, Xinjie[1];Wang, Jinliang[2]

机构：[1]Qilu Univ Technol, Shandong Acad Sci, Biol Engn Technol Innovat Ctr Shandong Prov, Heze Branch, Heze 274000, Peoples R China;[2]Guangdong Ocean Univ, Sch Mech Engn, Zhanjiang 524088, Peoples R China

年份：2024

卷号：50

期号：3

起止页码：4600

外文期刊名：CERAMICS INTERNATIONAL

收录：SCI-EXPANDED(收录号：WOS:001145633800001)、、EI(收录号：20235115231674)、Scopus(收录号：2-s2.0-85179667799)、WOS

基金：This work was supported by the Talent Research Project from Qilu University of Technology (Shandong Academy of Sciences) (2023RCKY069) and Science, Education, and Industry Integration Innovation Pilot Project from Qilu University of Technology (Shandong Academy of Sciences) (2022JBZ02-06) .

语种：英文

外文关键词：Double perovskite oxides; Magnetic properties; Magnetocaloric effect; Cryogenic magnetic refrigeration

外文摘要：We have systematically studied the crystal structure, cryogenic magnetic properties and MCE in RE2MgTiO6 (RE = Tb, Dy, Ho and Er) DP oxides. The four RE2MgTiO6 samples are all found to crystallize in a monoclinic DP structure (P21/n space group). The Ne ' el temperature (TN) are found to be 4.7, 4.5, 3.1 and 2.1 K for RE2MgTiO6 (RE = Tb, Dy, Ho and Er) DP oxides, respectively. Moreover, the maximum magnetic entropy change (-Delta SMmax) together with relative cooling power (RCP) near TN under a magnetic field change (Delta H) of 0-7 T are evaluted to be 16.85, 360.59 for Tb2MgTiO6, 17.72, 381.05 for Dy2MgTiO6, 15.92, 398.14 for Ho2MgTiO6 and 22.95 J/kg K, 459.09 J/kg for Er2MgTiO6, respectively. The excellent cryogenic MCE suggest that RE2MgTiO6 (RE = Tb, Dy, Ho and Er) DP oxides can be used as a promising candidate material for cryogenic magnetic refrigeration.