Siam Physics Congress 2022 (SPC2022)

Fabrication, characterization and magnetic properties of La0.5Sr0.5TiO3 nanofibers

S2 Condensed Matter Physics

Not scheduled

2h 30m

Board: P067

Poster Presentation Condensed Matter Physics Poster: S2 Condensed Matter Physics

Speaker

Dr Wichaid Ponhan (Program of Physics, Faculty of Science and Technology, Rajabhat Maha Sarakham University, Maha Sarakham, 44000, Thailand)

Description

La0.5Sr0.5TiO3 nanofibers were fabricated by simple electrospinning using a solution that contained poly(vinylpyrrolidone) (PVP), Lanthanum nitrate (La(NO3)3.6H2O), Strontium nitrate (N2O6Sr) and Diisopropoxytitanium bis(acetylacetonate) solution. The La0.5Sr0.5TiO3 nanofibers with average diameters of 109 – 140 nm were successfully obtained from calcination of the as-spun La0.5Sr0.5TiO3/PVP composite nanofibers at 630 – 930 C in air for 2 h. The as-spun and La0.5Sr0.5TiO3 nanofibers were characterized by SEM, XRD, TEM, and VSM. The results of XRD and TEM with selected electron diffraction (SEAD) analysis indicated that the La0.5Sr0.5TiO3 nanofibers had cubic perovskite structure with high intensity phase. Room temperature magnetization results revealed a diamagnetic behavior for all La0.5Sr0.5TiO3 nanofibers.