Structural and elastic properties of nickel-zinc ferrite nano-particles doped with lithium

The X-ray and Fourier transform infrared (FTIR) spectroscopy are used to studying the structural and elastic properties of Ni-Zn ferrite doped lithium according to the chemical formula Ni1-xZnx-2yLiyFe2+yO4, where (0 <= x <= 0.5) and (y= 0, 0.01, 0.02, 0.03, and 0.04) which preparation by sol-gel method. Lattice constant (a), crystallite size, and cation distribution are deduced from XRD. FTIR measurement exhibits that two absorption bands (nu(1) and nu(2)) around 400-800 cm(-1) that confirm the existence of tetrahedral and octahedral sites of ferrite. Force constant, elastic wave velocity, bulk modulus, and young's modulus also reported. The force constant for A-site is larger than for B-site which vary between (K-A = 131.6-145.5 N/m) and (K-B = 97.8-102.3 N/m) where can be found the values of elastic constant for nanoparticle is agreement with those of bulk material.