典型文献
Enhanced low-field magnetocaloric effect in Nb and Al co-substituted EuTiO3 compounds
文献摘要：
The magnetic ground state switching between antiferromagnetic(AFM)and ferromagnetic(FM)states in EuTiO3 provides the feasibility of regulating its magnetic properties and magnetocaloric effect.First-principles calculations demonstrate that the magnetic ground states for EuTi0.875Nb0.0625Al0.0625O3,EuTi0.8125Nb0.125Al0.0625O3,and EuTi0.75Nb0.125Al0.125O3 are FM coupling.Experimental results also exhibit the FM coupling domination in these compounds,accompanied by a significantly enhanced low mag-netic field magnetocaloric effect.The maximum magnetic entropy change of all the samples surpasses 15 J kg-1 K-1 with a field change of 1 T,which is 1.4 times as large as that of bulk EuTiO3.Especially,the maximum refrigerating capacity for EuTi0.8125Nb0.125Al0.0625O3 compound is evaluated to be 88.1 J kg-1,more than three times of that of EuTiO3.The remarkable magnetocaloric performances prove Nb and Al co-substituted EuTiO3 compounds to be competitive candidates for magnetic refrigeration in the liquid helium temperature regime.
文献关键词：
中图分类号：
作者姓名：
Huicai Xie;Wenxia Su;Haiming Lu;Zhaojun Mo;Dunhui Wang;Hao Sun;Lu tian;Xinqiang Gao;Zhenxing Li;Jun Shen
作者机构：
Ganjiang Innovation Academy,Chinese Academy of Sciences,Ganzhou 341000,China;Faculty of Materials Metallurgy and Chemistry,Jiangxi University of Science and Technology,Ganzhou 341000,China;National Laboratory of Solid State Microstructures,Jiangsu Provincial Key Laboratory for Nanotechnology,School of Physics,Nanjing University,Nanjing 210093,China;Key Laboratory of Cryogenics,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China
文献出处：
引用格式：
[1]Huicai Xie;Wenxia Su;Haiming Lu;Zhaojun Mo;Dunhui Wang;Hao Sun;Lu tian;Xinqiang Gao;Zhenxing Li;Jun Shen-.Enhanced low-field magnetocaloric effect in Nb and Al co-substituted EuTiO3 compounds)[J].材料科学技术（英文版）,2022(23):128-135
A类：
EuTiO3,EuTi0,875Nb0,0625Al0,0625O3,8125Nb0,125Al0,75Nb0,125O3,refrigerating
B类：
Enhanced,low,field,magnetocaloric,effect,substituted,compounds,ground,switching,between,antiferromagnetic,AFM,states,provides,feasibility,regulating,its,properties,First,principles,calculations,demonstrate,that,are,coupling,Experimental,results,also,exhibit,domination,these,accompanied,by,significantly,enhanced,maximum,entropy,change,samples,surpasses,which,is,times,large,bulk,Especially,capacity,evaluated,more,than,three,remarkable,performances,prove,competitive,candidates,refrigeration,liquid,helium,temperature,regime
AB值：
0.375104
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