Relaxation of the transverse spin component in randomly canted Li-Ti ferrite below T_N

Microwave assisted synthesis and characterization of Co doped Cu ferrite nanoparticles

“…are greatly influenced by porosity, grain size and microstructure of the sample [15,16]. Ferrites are also used in many magnetic devices due to their low electrical conductivity as compared to other magnetic materials [17][18][19][20][21][22][23][24]. Ferrites containing cobalt and copper exhibit several interesting properties which make them suitable for switching and memory devices because at frequencies above 50 MHz cobalt is preferred to preclude magnetic losses [25].…”

Studies of the magnetic ordering in the spinel system Zn0.4Co0.6AlxFe2−xO4 by neutron diffraction

“…Table 1 Cation distribution in the spinel system Zn 0.4 Co 0.6 Al x Fe 2−x O 4 as obtained from Rietveld refinement of higher angle neutron diffraction data [29] x Several disordered spinel systems with a range of dilution have been shown to exhibit spin-glass like behavior [1,5]. Semi-spin-glass like behavior was observed by Brand et al in Mg-Ti ferrite [11] and by Dormann et al in Li-Ti ferrites [12]. Nogues et al observed the existence of a local canted state in the Zn x Mg 1−x Fe 2 O 4 (x > 0.5) ferrite system [9].…”

“…In the last few years, a considerable amount of work has been carried out on the spinel systems and a variety of perturbed magnetic orders have been reported [1][2][3][4][5][6][7][8][9][10][11][12]. Systems with spinel structure are found to be more interesting because they bring in the possibility of introducing a variety of magnetic types of disorder.…”

Order−Disorder Transitions and Magnetic Behaviour in Lithium Ferrites Li0.5+0.5xFe2.5−1.5xTixO4 (x = 1.28 and 1.50)

“…An explanation can be found by considering the Rosencwaig canting model. [7] Scharner et al [6] proposed orderϪdisorder transitions for x ϭ 1.2 and 1.57, but they did not suggest the possibility of canting in both positions.…”