Lattice parameter variation and magnetization studies on titanium-, zirconium-, and tin-substituted nickel-zinc ferrites

Abstract

The variation of lattice parameter, saturation magnetization, and Curie temperature on the addition of Ti4+, Zr4+, and Sn4+ to some Ni-Zn ferrite compositions are reported and the results are explained on the basis of the movement of the substituting ions first to the tetrahedral and finally to the octahedral sites of the spinel lattice.

Ceramic Processing Route and Characterization of a Ni-Zn Ferrite for Application in a Pulsed-Current Monitor

“…These results corroborate the data found on literature [8,22] that report B s values varying from 36 to 94 mT for similar ferrites.…”

Magnetic Properties and Electrical Resistivity of Zr4+ Substituted Li-Zn Ferrite

“…For Zr-ion distribution, it was reported that Zr 4+ ions first enter the A-site for low concentration and then subdivide between A-and B-sites for higher concentrations [9] . As M s is given by (M s =M B -M A ) where M A and M B are the magnetizations of A-and B-sites respectively, thus the general formula of the saturation magnetization could be written as M s =(1.1+0.5x-2t).5µ B…”

Magnetic study of Ti-substituted NiFe2O4 ferrite

“…It is expected that substitution of each tetravalent cation produces one-half cation vacancy, which predicts a monotonic variation of the lattice parameter and other magnetic parameters. Ti 4+ -substituted Ni-Zn ferrite systems have been studied by a number of workers [15][16][17][18][19][20]. Khan et al [15][16][17] found a very interesting behavior of saturation magnetization in Ti 4+ -substituted Ni 0.3 Zn 0.7 Fe 2 O 4 ferrite by observing an anomalous dip in the saturation magnetization at Ti 4+ concentration of 0.03 per formula unit.…”

“…Ti 4+ -substituted Ni-Zn ferrite systems have been studied by a number of workers [15][16][17][18][19][20]. Khan et al [15][16][17] found a very interesting behavior of saturation magnetization in Ti 4+ -substituted Ni 0.3 Zn 0.7 Fe 2 O 4 ferrite by observing an anomalous dip in the saturation magnetization at Ti 4+ concentration of 0.03 per formula unit. Ti 4+ -substituted Ni 1−y Zn y Fe 2 O 4 (0 ≤ y ≤ 0.3) (NZFOy) ferrites also showed a similar anomalous behavior in the magnetization [21][22][23].…”

“…Ni 1−y Zn y Fe 2 O 4 (y = 0.0-1.0) ferrite and related systems continue to attract the attention of research workers [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. These ferrites are considered to be the most versatile ferrites due to their high resistivity and low eddy current losses.…”