Magnetic properties of lanthanum orthoferrite fine powders prepared by different chemical routes

Journal of Chemical Sciences

P Murugavel¹  V Ponnambalam¹  A R Raju1¹  Benedict Ita1¹ 

[1] Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560 064, India$$

关键词: Lanthanum iron oxide;    nanoparticles;    sol-gel synthesis;    nebulized spray pyrolysis;    magnetization.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

Fine powders of lanthanum iron oxide, LaFeO3, have been prepared by solid state reaction as well as sol-gel synthesis and nebulized spray pyrolysis. Structures, morphologies and magnetic susceptibility measurements of these powders have been examined. The powders prepared by all the three low-temperature routes contain nearly spherical particles with an average diameter of 40 nm. These samples show a lower Neel temperature than the powder prepared by solid state reaction besides showing much lower magnetic susceptibility at low temperatures.

【 授权许可】

Unknown