Crystal Structure and Magnetic Behaviour of Vanadium Doped Strontium Cobaltate

Herein, we report the structural and magnetic properties of polycrystalline SrCo1-xVxO3-delta (x = 0.05 and 0.1) samples. Room temperature x-ray diffraction analysis shows "314 - type" tetragonal structure (S. G.: I4/mmm) with a 2a(p) x 2a(p) x 4p type unit cell. The micron size particles with triangular shapes were observed in morphology studies by the scanning electron microscopy. The weight losses observed from the thermogravimetric analyzer for x = 0.05 and 0.1 were similar to 0.75% and similar to 15% respectively. The Fourier transform infrared spectroscopy of symmetric and asymmetric stretching vibrational modes were studies in the 400-4000 cm(-1) region. The magnetic susceptibility reveals that the materials exhibited ferrimagnetic-type transition above room temperature (359 K and 364 K for x = 0.05 and x = 0.1 respectively). These results, can approach to design of gas sensors or cathode materials.