Effect of Ce doping on the magnetic properties of LaFeO3 nanofibers

Background LaFeO 3 has unique physicochemical properties and exhibits great application potential in fields such as catalysis, sensors, energy conversion and storage, as well as magnetic storage. LaFeO 3 possesses fascinating magnetic characteristics. Ce doping in LaFeO 3 can bring about changes in the physicochemical properties. Method A simple electrospinning and annealing way were used to fabricate Ce-doped LaFeO 3 nanofibers, such as La 0.9Ce 0.1 FeO 3 , La 0.8 Ce 0.2 FeO 3 , and La 0.7 Ce 0.3 FeO 3 . The perovskite orthorhombic structures of the fabricated samples were revealed by Rietveld refined XRD patterns. The magnetic characteristics of these fabricated nanofibers were clarified by a Quantum Design SQUID vibrating sample magnetometer. Significant finding Magnetic properties indicated that LaFeO 3 nanofibers featured the coexistence of weak ferromagnetism and antiferromagnetism. An appropriate amount of Ce doping can notably enhance the ferromagnetism, with the magnetization increasing significantly. The internal mechanism through which Ce doping influenced the magnetism of LaFeO 3 nanofibers was thoroughly explored, providing a crucial theoretical basis and experimental reference for the optimal design and extensive application of LaFeO 3 -based magnetic materials. These findings are expected to inspire the advancement of lanthanum ferrite nanomaterials for applications in storage devices and sensors.