Room temperature ferromagnetism observed in pure La0.5Sr0.5TiO3 nanofibers fabricated by electrospinning

This figure shows the specific magnetization curves of as-spun and calcined LSTO/PVP composite nanofibers obtained from room temperature VSM measurements. The as-spun nanofibers show diamagnetic behavior (see the inset) whereas the LSTO/PVP composite nanofibers calcined in argon at 630, 730, 830 and 930 °C exhibit ferromagnetic behavior. The specific magnetization Ms values at 10 kOe are 0.022, 0.043, 0.067 and 0.042 emu/g for the samples of LSTO/PVP composite nanofibers calcined at 630, 730, 830 and 930 °C, respectively.