Title :
Combustion Synthesis and Characterization of Sm1–xTbxFeO3 Powder
Author :
Wei Li ; Jiayue Xu ; Hui Shen
Author_Institution :
Sch. of Mater. Sci. & Eng., Inst. of Crystal Growth, Shanghai, China
Abstract :
A series of orthorhombic perovskite Sm1-xTbxFeO3 (x = 0, 0.3, 0.35, 0.4, 0.45, and 0.5) powder was readily prepared by sol-gel combustion process. The Tb-doping effects on the structure, morphology, and magnetic properties of SmFeO3 have been studied in detail. Pure phase SmFeO3 was obtained when calcinated at 900 °C for 3 h. By Tb doping, the synthesis temperature of orthorhombic perovskite-type Sm1-xTbxFeO3 powder increased to 1100 °C. Moreover, the ferromagnetic (FM) interactions within the system are effectively enhanced, while the anti-FM coupling is greatly weakened, which is ascribed to the exchange coupling between Tb and Fe ions.
Keywords :
calcination; combustion synthesis; doping profiles; exchange interactions (electron); ferrites; ferromagnetic materials; samarium compounds; sol-gel processing; terbium compounds; Sm1-xTbxFeO3; calcination; doping effects; exchange coupling; ferromagnetic interaction; magnetic properties; morphological properties; orthorhombic perovskite powder; sol-gel combustion process; structural properties; temperature 900 degC; time 3 h; Combustion; Couplings; Doping; Magnetic properties; Nanoparticles; Powders; X-ray scattering; Doping; Magnetic propery; Orthoferrites; Perovskite; magnetic property; orthoferrites; perovskite;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2015.2434731
