Cation Distributions in Ferrospinels. Theoretical

Callen, Herbert B.; Harrison, S. E.; Kriessman, C. J.

doi:10.1103/physrev.103.851

Cited by 68 publications

(13 citation statements)

References 7 publications

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“…3 illustrates the variation of M s for both H and C specimens. Obviously, for either H or C specimens, the M s decreases with increasing Cu content x, which is consistent with the previously reported results [13,21]. However, seen from Fig.…”

Section: Methodssupporting

confidence: 94%

Comparative study of structural and magnetic properties of NiZnCu ferrite powders prepared via chemical coprecipitation method with different coprecipitators

Xia¹,

Jin²,

Du³

et al. 2011

Journal of Magnetism and Magnetic Materials

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Section: Methodssupporting

confidence: 94%

Comparative study of structural and magnetic properties of NiZnCu ferrite powders prepared via chemical coprecipitation method with different coprecipitators

Xia¹,

Jin²,

Du³

et al. 2011

Journal of Magnetism and Magnetic Materials

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“…Although the right side of the equation has the form proposed by N6el (1950), Callen, Harrison & Kriessman (1956) were apparently the first to propose th.at the left member should be a nearly linear function of x for this process.…”

Section: Introductionmentioning

confidence: 96%

The temperature dependence of ordering in magnesium ferrite

Faller¹,

Birchenall²

1970

J Appl Cryst

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Cation ordering in magnesium and nickel ferrites was studied by X‐ray diffraction measurements carried out at the temperature of equilibration and also on quenched specimens. The order parameters on quenched specimens agreed with results previously reported by others but not with values measured at temperature. Previous results on quenched specimens had been described by a simple mass action relation with constant ordering energy. The new results on equilibrated specimens require a modified Bragg–Williams‐type relation in which the ordering energy varies with the degree of order. Both ferrites are inverted when in equilibrium at low temperature. Magnesium ferrite approaches a random distribution at high temperature with a Curie point at about 1070°C. Oxygen positional parameters were 0.243±0.001 for both ferrites at room temperature. The lattice parameter of nickel ferrite quenched from temperatures up to 1255°C was 8.3295±0.0001 Å. For magnesium ferrite the lattice parameter varied from 8.3775±0.0001 Å, when quenched from 784°C. to 8.3848, when quenched from 1271°C.

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“…For either T or O specimens, M s decreases with the increase of Cu content, x, which is normal according to the previous study [11,12]. However, for the O specimens, M s decreases much faster than that of T specimens with the increase in x.…”

Section: Saturation Magnetizationmentioning

confidence: 54%