Rare earth effect on structural, magnetic and magnetocaloric properties of La0.75Ln0.05Sr0.2MnO3 manganites

被引：67
作者：
Elghoul, A. [1 ]
Krichene, A. [1 ]
Boudjada, N. Chniba [1 ,2 ]
Boujelben, W. [1 ]
机构：
[1] Univ Sfax, Fac Sci Sfax, Lab Phys Mat, BP 1171, Sfax 3000, Tunisia
[2] Inst Neel, BP 166, F-38042 Grenoble 9, France
来源：
CERAMICS INTERNATIONAL | 2018年 / 44卷 / 11期
关键词：
Manganite; Sol-gel; Magnetocaloric effect; Theoretical composite; COLOSSAL MAGNETORESISTANCE; TRANSPORT-PROPERTIES; POLYCRYSTALLINE; TRANSITION; EU; GD; RE; CA; SM;
D O I：
10.1016/j.ceramint.2018.04.075
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this work, we have investigated the rare earth substitution effect on structural, magnetic and magnetocaloric properties of La(0.75)Ln(0.05)Sr(0.2)MnO(3) polycrystalline manganites (Ln(=)La, Sm, Eu, Gd, Dy and Ho), synthesized using the sol-gel technique. Replacing La with other rare earth elements induces an enhancement of cationic mismatch inducing a structural transition from rhombohedral to orthorhombic symmetry for highly disordered samples. Temperature dependence of magnetization indicates that our samples undergo a paramagnetic-ferromagnetic transition with decreasing temperature. The Curie temperature values decrease with the mismatch increase, but Ho based sample shows a different behavior. The magnetic entropy change curves -Delta S(T) show a large magnetocaloric effect near room temperature. We have also improved the magnetocaloric effect by using theoretical calculation to get theoretical composites.
引用
收藏
页码：12723 / 12730
页数：8
相关论文
共 40 条
  • [1] Structural disorder effect on the structural and magnetic properties of Pr0.4Re0.1Sr0.5-yBayMnO3 manganites (Re = Pr, Sm, Eu, Gd, Dy and Ho)
    Bourouina, M.
    Krichene, A.
    Boudjada, N. Chniba
    Boujelben, W.
    [J]. CERAMICS INTERNATIONAL, 2017, 43 (15) : 12311 - 12320
  • [2] Effect of different synthesis techniques on structural, magnetic and magneto-transport properties of Pr0.7Sr0.3MnO3 manganite
    Chand, Umesh
    Yadav, Kamlesh
    Gaur, Anurag
    Varma, G. D.
    [J]. JOURNAL OF RARE EARTHS, 2010, 28 (05) : 760 - 764
  • [3] Effects of the A-site cation number on the properties of Ln5/8M3/8MnO3 manganites
    Collado, J. A.
    Garcia-Munoz, J. L.
    Aranda, M. A. G.
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 2010, 183 (05) : 1083 - 1089
  • [4] First order paramagnetic-ferromagnetic phase transition in Tb3+ doped La0.5Ca0.5MnO3 manganite
    Doshi, R. R.
    Solanki, P. S.
    Khachar, Uma
    Kuberkar, D. G.
    Krishna, P. S. R.
    Banerjee, A.
    Chaddah, P.
    [J]. PHYSICA B-CONDENSED MATTER, 2011, 406 (21) : 4031 - 4034
  • [5] Influence of Sm-doping on the structural, magnetic, and electrical properties of La0.8-xSmxSr0.2MnO3 (0 < x < 0.45) manganites
    Ehsani, M. H.
    Kameli, P.
    Razavi, F. S.
    Ghazi, M. E.
    Aslibeiki, B.
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2013, 579 : 406 - 414
  • [6] Electrical, magnetic and magnetocaloric properties of polycrystalline Pr0.63A0.07Sr0.3MnO3 (A=Pr, Sm and Bi)
    Elghoul, A.
    Krichene, A.
    Boujelben, W.
    [J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2016, 98 : 263 - 270
  • [7] Measurement of oxygen transport in La0.8Sr0.2MnO3 perovskite grains
    Fearn, S.
    Rossiny, J. C. H.
    Kilner, J. A.
    Evans, J. R. G.
    [J]. SOLID STATE IONICS, 2012, 211 : 51 - 57
  • [8] Field dependence of the magnetocaloric effect in materials with a second order phase transition:: A master curve for the magnetic entropy change
    Franco, V.
    Blazquez, J. S.
    Conde, A.
    [J]. APPLIED PHYSICS LETTERS, 2006, 89 (22)
  • [9] Synthesis of fine La0.8Sr0.2MnO3 powder by different ways
    Grossin, D
    Noudem, JG
    [J]. SOLID STATE SCIENCES, 2004, 6 (09) : 939 - 944
  • [10] Correlation between structural, transport, and magnetic properties in Sm1-xAxMnO3 (A=Sr,Ca)
    Hassen, A.
    Mandal, P.
    [J]. JOURNAL OF APPLIED PHYSICS, 2007, 101 (11)
1234