A comparative study of the structural, magnetic transport and electrochemical properties of La0.7Sr0.3MnO3 synthesized by different chemical routes

被引:11
作者
Navin, Kumar [1 ]
Kurchania, Rajnish [1 ]
机构
[1] MANIT, Nanosci & Engn Ctr, Dept Phys, Funct Nanomat Lab, Bhopal 462003, India
来源
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2020年 / 126卷 / 02期
关键词
LSMO nanoparticles; Sol-gel; Magnetoresistance; Supercapacitance; OPTICAL-PROPERTIES; LAMNO3; PEROVSKITE; OXYGEN VACANCIES; PARTICLE-SIZE; NANOPARTICLES; PERFORMANCE; MANGANITES; FUEL;
D O I
10.1007/s00339-019-3269-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A comparative study of the structural, magnetic, transport and electrochemical properties of the La0.7Sr0.3MnO3 (LSMO) synthesized by sol-gel, solution combustion and solid-state reaction has been discussed in details. Synthesis process controls the structure and morphology of the material which determine the overall characteristics of the material. The sol-gel and solution combustion method provide nanocrystalline material with an average particle size of 23.03 nm 17.9 nm, respectively; while, microcrystalline material with an average particle size of 160 nm is synthesized by solid-state reaction method. The magnetic properties of the material are improved with an increase in particle size from nanoscale to microscale, while resistivity increases with a reduction in the size of the material. The LSMO synthesized by the sol-gel method shows the highest magnetoresistance of 32.3% at 10 K with a 1T magnetic field. The solution combustion method provides LSMO nanoparticles with large surface area and porosity which results in its better electrochemical behavior as compared to the LSMO synthesized by sol-gel and solid-state reaction.
引用
收藏
页数:13
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