Effect of Al-substitution on Structural and Magnetic Properties of Er3Fe5-xAlxO12 Garnets


Effect of Al-substitution on Structural and Magnetic Properties of Er3Fe5-xAlxO12 Garnets

Ibrahim Bsoul, Khaled Hawamdeh, Sami H. Mahmood

Er3Fe5-xAlxO12 (0.0 ≤ x ≤ 0.8) garnets were prepared at 1300 ºC by ball milling method. Rietveld refinement of the samples revealed a garnet structure with Ia3d symmetry. The lattice parameter, cell volume, X-ray density and magnetization of the prepared garnets decreased with the increase of Al content (x). The coercivity of the garnets increased with x, but remained generally low, being below 20 Oe. Low temperature magnetic measurements versus temperature indicated that the magnetization of x = 0.0 exhibited a compensation temperature at ˗186º C, however, x = 0.8 exhibited a minimum at a higher temperature of ˗134º C.

Rare Earth Iron Garnet, Structural Characteristics, Magnetic Properties, Compensation Temperature, Thermomagnetic Curves

Published online 8/25/2020, 20 pages

Citation: Ibrahim Bsoul, Khaled Hawamdeh, Sami H. Mahmood, Effect of Al-substitution on Structural and Magnetic Properties of Er3Fe5-xAlxO12 Garnets, Materials Research Foundations, Vol. 83, pp 21-40, 2020

DOI: https://doi.org/10.21741/9781644900970-2

Part of the book on Magnetic Oxides and Composites II

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