Magnetic properties of Zn1−xMnxFe2O4 nanoparticles prepared by hydrothermal method

Sensitive MnFe2O4–Ag hybrid nanoparticles with photothermal and magnetothermal properties for hyperthermia applications

“…As Ag concentration increased, the LSPR peaks showed slight blue shis from 444 nm for S1 to 432 nm for S4, because of the local dielectric effect according to the classical Mie theory. 35 Similar phenomena were reported in literature. 22,36,37 The inuence of Ag on the Raman scattering of MnFe 2 O 4 nanoparticles was studied at room temperature through Raman spectroscopy.…”

Mn substituted MnxZn1−xCo2O4 oxides synthesized by co-precipitation; effect of doping on the structural, electronic and magnetic properties

“…This behaviour suggests changes in bonding occurs in the crystal structure, which could be affected by the ratio between Zn and Mn and the lighter atomic mass of Mn compared to that of Zn. 29 These observations further support the formation of cubic spinel crystal structure in the fabricated Mn x Zn 1Àx Co 2 O 4 .…”

“…Many studies were conducted on Zn-based spinel oxides to demonstrate the effect of substitution of nonmagnetic ions on their magnetic and structural properties. [28][29][30] The studies have shown a signicant change in the magnetic properties during substitution due to a predominant super-exchange interaction between the cations in the A-site and B-site via oxygen ions.…”

Effect of Silica Embedding on the Structure, Morphology and Magnetic Behavior of (Zn0.6Mn0.4Fe2O4)δ/(SiO2)(100−δ) Nanoparticles

“…The magnetization of MnFe 2 O 4 is mainly determined by the competition between A-B super exchange and B-B exchange [31]. When Zn 2+ is added in the Mn ferrite structure, the A-B exchange in weakened and B-B sublattice interaction becomes stronger.…”

“…The M S increases with increasing content of ferrite and α-Fe 2 O 3 phases. The decrease of magnetization can be the consequence of the spin canting in the B sublattice as described by the non-collinear Yafet-Kittel model [18,[31][32][33]. At the particles surface a dead layer is formed which contains broken chemical bonds, deviations from the bulk cation distribution, non-saturation effects, randomly oriented magnetic moments, lattice defects, etc.…”