Synthesis of Co-doped barium strontium titanate nanofibers by sol-gel/electrospinning process

► Multiferroic Co-doped barium strontium titanate nanofibers were synthesized. ► The nanofibers were well-distributed with highly crystalline structure. ► The nanofibers showed a relatively tight structure after the annealing process. ► The success of Co doping was confirmed by XPS and EDS analysis. ► The ferromagnetic behavior was displayed by magnetic hysteresis loop.