Magnetotransport properties of polycrystalline La0.75Ho0.05Sr0.2MnO3

被引：5
|
作者：
Elghoul, A. [1 ]
Krichene, A. [1 ]
Chniba Boudjada, N. [1 ,2 ]
Boujelben, W. [1 ]
机构：
[1] Univ Sfax, Fac Sci Sfax, Lab Phys Mat, Sfax 3000, Tunisia
[2] Inst Neel, F-38042 Grenoble 9, France
来源：
BULLETIN OF MATERIALS SCIENCE | 2021年 / 44卷 / 04期
关键词：
Manganite; electrical resistivity; magnetoresistance; percolation model; MAGNETOCALORIC PROPERTIES; MAGNETIC-PROPERTIES; TRANSPORT; MAGNETORESISTANCE; SITE; GD; SUBSTITUTION; TEMPERATURE; BEHAVIOR; X=0;
D O I：
10.1007/s12034-021-02565-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, we have tried to simulate both temperature and magnetic field dependence of electrical resistivity for polycrystalline La0.75Ho0.05Sr0.2MnO3. The studied sample was elaborated by sol-gel method. The energy-dispersive X-ray confirms the presence of Ho element. The temperature dependence of resistivity in the whole temperature range (100-300 K) was successfully fitted by phenomenological percolation model, testifying the percolative nature of the electrical transition. The evolution of the volume fraction of the ferromagnetic phase is in agreement with the magnetic properties. The magnetic field dependence of resistivity follows the recently established universal behaviour of resistivity, which may confirm the validity of this model.
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页数：6
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