Effect of vanadium doping on structural, magnetic and magnetocaloric properties of La0.5Ca0.5MnO3

被引：34
作者：
Mansouri, M. [1 ]
Omrani, H. [1 ]
Cheikhrouhou-Koubaa, W. [1 ,2 ]
Koubaa, M. [1 ]
Madouri, A. [3 ]
Cheikhrouhou, A. [1 ]
机构：
[1] Sfax Univ, Fac Sci Sfax, Lab Phys Mat, Sfax 3000, Tunisia
[2] Ctr Rech Informat Multimedia & Traitement Numer D, Sakiet Ezzit 3021, Sfax, Tunisia
[3] CNRS, LPN, F-91460 Marcoussis, France
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2016年 / 401卷
关键词：
X-ray diffraction; Magnetization; Manganites; Magnetocaloric effect; ELECTRICAL-PROPERTIES; CRITICAL-BEHAVIOR; CHARGE; TEMPERATURE; PHASE; SUBSTITUTION; LANTHANUM; IMPACT; CO; CR;
D O I：
10.1016/j.jmmm.2015.10.066
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report the effect of vanadium doping on structural, magnetic and magnetocaloric properties of La0.5Ca0.5Mn1-xVxO3 (x=0.05; 0.1). Our samples were elaborated using the conventional solid state reaction method at high temperatures. X-Ray powder diffraction at room temperature indicates that our samples crystallize in the orthorhombic structure with Pbnm space group. Magnetic measurements reveal a paramagnetic-ferromagnetic transition with decreasing temperature. Magnetocaloric studies show that the maximum of the magnetic entropy change and the relative cooling power (RCP) are found to be 2.421 Kg(-1) K-1 and 162.751 Kg(-1) for x=0.05 and 3.121 Kg(-1) K-1 and 221.311 Kg(-1) for x=0.1 under a field change of 5 T. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：593 / 599
页数：7
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