“…At temperatures above 735-755 8C the materials crystallizes in the b-phase which has a similar structure to the a-phase except that the Li + and Fe 3+ ions are randomly distributed over the octahedral B-interstices and the space group is Fd3m [6,7]. The material is extensively studied due to its technologically desirable electric and magnetic properties that are susceptible to modification by introducing suitable cationic substitutes for the Fe 3+ ions at the A-or/and B-sub-lattice and/or by controlling the preparative conditions [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. For instance, as the magnetic moments on the A-and B-sites are antiparallel with the dominant contribution to net magnetisation coming from the Fe 3+ at the octahedral B-sites according to the Né el's collinear model of ferrimagnetism, the magnetic properties of Li 0.5 Fe 2.5 O 4 can be modified by substituting Fe 3+ ions by different magnetic/diamagnetic ions on either or both of the A-and Bsublattices, thus allowing the magnetisation to be tailored for specific applications of the ferrite [1,4,5].…”