TY - JOUR
T1 - Low-temperature synthesis of MnxMg1-xFe 2O4(x = 0-1) nanoparticles
T2 - Cation distribution, structural and magnetic properties
AU - Khot, V. M.
AU - Salunkhe, A. B.
AU - Phadatare, M. R.
AU - Thorat, N. D.
AU - Pawar, S. H.
PY - 2013/2/6
Y1 - 2013/2/6
N2 - Nanoferrites having composition MnxMg1-xFe2O4(x = 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) are synthesized by a low-temperature combustion method. The particle size measured from transmission electron microscopy and x-ray diffraction (XRD) patterns confirms the nanosized dimension of the as-prepared powder. From the analysis of XRD data with Scherrer's formula, the average crystallite size ranges from 23 to 33 nm and the lattice parameter ranges from 8.385 to 8.468. Substitution of Mn2+ in MgFe2O4 causes an increase in the lattice constant, and this moderately distorts the lattice. Magnetic properties such as magnetization (Ms), coercivity (Hc) and remanence (Mr) with increasing Mn 2+ concentration are studied at room temperature by a vibrating sample magnetometer. Substitution of Mn2+ for Mg2+ increases Ms from 34.5 to 54.5 emu g-1 and decreases Hc from 51.0 to 45.0 Oe. The results imply that the low-temperature combustion method is an efficient route for synthesis of nanoferrites without any extra calcination step. The as-prepared Mg-Mn ferrites are suitable for memory and switching circuits in digital computers.
AB - Nanoferrites having composition MnxMg1-xFe2O4(x = 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) are synthesized by a low-temperature combustion method. The particle size measured from transmission electron microscopy and x-ray diffraction (XRD) patterns confirms the nanosized dimension of the as-prepared powder. From the analysis of XRD data with Scherrer's formula, the average crystallite size ranges from 23 to 33 nm and the lattice parameter ranges from 8.385 to 8.468. Substitution of Mn2+ in MgFe2O4 causes an increase in the lattice constant, and this moderately distorts the lattice. Magnetic properties such as magnetization (Ms), coercivity (Hc) and remanence (Mr) with increasing Mn 2+ concentration are studied at room temperature by a vibrating sample magnetometer. Substitution of Mn2+ for Mg2+ increases Ms from 34.5 to 54.5 emu g-1 and decreases Hc from 51.0 to 45.0 Oe. The results imply that the low-temperature combustion method is an efficient route for synthesis of nanoferrites without any extra calcination step. The as-prepared Mg-Mn ferrites are suitable for memory and switching circuits in digital computers.
UR - http://www.scopus.com/inward/record.url?scp=84872517663&partnerID=8YFLogxK
U2 - 10.1088/0022-3727/46/5/055303
DO - 10.1088/0022-3727/46/5/055303
M3 - Article
AN - SCOPUS:84872517663
SN - 0022-3727
VL - 46
JO - Journal of Physics D: Applied Physics
JF - Journal of Physics D: Applied Physics
IS - 5
M1 - 055303
ER -