Particle dispersion and lattice distortion induced magnetic behavior of La1-xSrxMnO3 perovskite nanoparticles grown by salt-assisted solid-state synthesis

La1-xSrxMnO3 perovskites are of enormous current interest due to their superior magnetoresistance and application as cathode material for solid oxide fuel cells. However, practical applications of these perovskites critically depend on size, composition, and concentration of La3+ vacancies at their...

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Published in:Materials chemistry and physics 2020-05, Vol.246, p.122834, Article 122834
Main Authors: Ortiz-Quiñonez, Jose-Luis, García-González, Lorena, Cancino-Gordillo, Francisco Enrique, Pal, Umapada
Format: Article
Language:English
Subjects:
Annealing
Ball milling
Curie temperature
Distortion
Electrode materials
Ferromagnetism
Jahn-Teller effect
La0.7Sr0.3MnO3 particles
Lanthanum compounds
Lanthanum manganites
Lattice vacancies
Magnetic properties
Magnetoresistance
Magnetoresistivity
Manganese ions
Mechanosynthesis
Nanoparticles
Nanostructure
Oxidation
Perovskite structure
Perovskites
Solid oxide fuel cells
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Summary:La1-xSrxMnO3 perovskites are of enormous current interest due to their superior magnetoresistance and application as cathode material for solid oxide fuel cells. However, practical applications of these perovskites critically depend on size, composition, and concentration of La3+ vacancies at their surfaces. Here we present the fabrication of size controlled (90–255 nm average size), highly crystalline La1-xSrxMnO3 (x = 0, 0.3, 0.5, and 1) nanoparticles, simply by ball-milling of metal acetylacetonate precursors in NaCl and subsequent air-annealing. The size of the nanoparticles increased in the order LaMnO3+ δ 
ISSN:0254-0584
1879-3312
DOI:10.1016/j.matchemphys.2020.122834