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Exploiting Magnetism and Magnetocaloric Effect in Nd0.55Sr0.45Mn0.98Ga0.02O3
Yu, Bo1; Han, Hui2; Lan, Xiufeng1; Zhang, Weichun1; Zhang, Lei2; Fan, Jiyu1
2017-08-01
发表期刊JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
卷号30期号:8页码:2227-2232
摘要We report results of the magnetization and magnetocaloric effect in lightly Ga-doped perovskite manganites Nd0.55Sr0.45Mn0.98Ga0.02O3. It undergoes a second-order paramagnetic to ferromagnetic transition at T-C = 250 K and shows a strong ferromagnetic properties below TC. However, an obvious upward deviation from the Curie-Weiss law far above TC indicates the existence of non-Griffiths-like behavior in paramagnetic phase. Together with the measurements of isothermal magnetization around the Curie temperature, the unsaturated magnetization curves under high magnetic field of 7.0 T imply that the Ga-substitution causes the formation of antiferromagnetic phase due to some localized charge order phases generated in this composition. Based on the data of isothermal magnetization measured around TC and Maxwell relation, we have calculated the maximum isothermal magnetic entropy change of 6.23 J/kg K for Delta mu H-0= 7.0 T magnetic field variation. Though only a moderate magnetic entropy change were obtained, a considerable large relative cooling power of 260 J/kg for Delta mu H-0= 7.0 T and 182 J/kg for Delta mu H-0 = 5.0 T were found in this sample, this ensure it to be a potential candidate material to be applied in the magnetic refrigeration.
文章类型Article
关键词Manganite Magnetocaloric Effect Phase Transitions
WOS标题词Science & Technology ; Physical Sciences
资助者National Nature Science Foundation of China(11574322 ; National Nature Science Foundation of China(11574322 ; Foundation for Users with Potential of Hefei Science Center (CAS)(2015HSC-UP001) ; Foundation for Users with Potential of Hefei Science Center (CAS)(2015HSC-UP001) ; U1332140) ; U1332140) ; National Nature Science Foundation of China(11574322 ; National Nature Science Foundation of China(11574322 ; Foundation for Users with Potential of Hefei Science Center (CAS)(2015HSC-UP001) ; Foundation for Users with Potential of Hefei Science Center (CAS)(2015HSC-UP001) ; U1332140) ; U1332140)
DOI10.1007/s10948-017-4046-0
关键词[WOS]PHASE-SEPARATION ; MAGNETORESISTANCE ; RESISTIVITY ; MODELS ; FILMS
收录类别SCI
语种英语
资助者National Nature Science Foundation of China(11574322 ; National Nature Science Foundation of China(11574322 ; Foundation for Users with Potential of Hefei Science Center (CAS)(2015HSC-UP001) ; Foundation for Users with Potential of Hefei Science Center (CAS)(2015HSC-UP001) ; U1332140) ; U1332140) ; National Nature Science Foundation of China(11574322 ; National Nature Science Foundation of China(11574322 ; Foundation for Users with Potential of Hefei Science Center (CAS)(2015HSC-UP001) ; Foundation for Users with Potential of Hefei Science Center (CAS)(2015HSC-UP001) ; U1332140) ; U1332140)
WOS研究方向Physics
WOS类目Physics, Applied ; Physics, Condensed Matter
WOS记录号WOS:000405603000024
引用统计
文献类型期刊论文
条目标识符http://ir.hfcas.ac.cn:8080/handle/334002/33546
专题中科院强磁场科学中心
作者单位1.Nanjing Univ Aeronaut & Astronaut, Dept Appl Phys, Nanjing 210016, Jiangsu, Peoples R China
2.Chinese Acad Sci, High Magnet Field Lab, Hefei 230031, Peoples R China
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GB/T 7714
Yu, Bo,Han, Hui,Lan, Xiufeng,et al. Exploiting Magnetism and Magnetocaloric Effect in Nd0.55Sr0.45Mn0.98Ga0.02O3[J]. JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM,2017,30(8):2227-2232.
APA Yu, Bo,Han, Hui,Lan, Xiufeng,Zhang, Weichun,Zhang, Lei,&Fan, Jiyu.(2017).Exploiting Magnetism and Magnetocaloric Effect in Nd0.55Sr0.45Mn0.98Ga0.02O3.JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM,30(8),2227-2232.
MLA Yu, Bo,et al."Exploiting Magnetism and Magnetocaloric Effect in Nd0.55Sr0.45Mn0.98Ga0.02O3".JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM 30.8(2017):2227-2232.
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