Synthesis, physical, magnetic and electrical properties of Al–Ga substituted co-precipitated nanocrystalline strontium hexaferrite

Influence of Cr<sup>3+</sup> Ion on the Dielectric Properties of Nano Crystalline Mg-Ferrites Synthesized by Citrate-Gel Method

“…The lattice parameter was found to decrease linearly with increase of Cr 3+ ions in the Mg-Cr nano-ferrites system indicating that the system obeys Vegard's law [11]. Hz and there is a decreasing trend in value with increasing frequency from 1000 Hz to 2 MHz which is a normal behavior of ferromagnetic materials.…”

Synthesis and Characterization of PEG-Sr Hexaferrite by Sol–Gel Conversion

“…It is a hard magnet with high coercivity, which originates from high magnetocrystalline anisotropy with single easy magnetization axis. It has been recognized that it can be used as permanent magnets, recording media, telecommunication, and as components in microwave, higher-frequency, and magnetooptical devices [35][36][37][38][39][40][41].…”

Effect of grain size on electric transport and magnetic behavior of strontium hexaferrite (SrFe12O19)

“…This material is being used in bulk form in many electrical and electronic devices due to its better magnetic properties, such as in microwave devices, small motors, and more recently, magnetic recording applications [4].The magnetic and electrical properties of the hexagonal ferrites are strongly dependent on the synthesis conditions and the site occupation of the substituted cations among five different Fe 3? sublattices, namely tetrahedral (4f1), trigonal bipyramidal (2b) and octahedral (12k, 2a and 4f2) of hexagonal structure [5]. Various researchers doped different metals and combinations of various metal cations to improve the properties of strontium hexaferrites and to make the materials suitable for different applications [5][6][7][8][9][10][11][12][13][14] Hooda et al synthesized strontium hexaferrite (SrM) and its modified systems by solid-state technique.…”

“…sublattices, namely tetrahedral (4f1), trigonal bipyramidal (2b) and octahedral (12k, 2a and 4f2) of hexagonal structure [5]. Various researchers doped different metals and combinations of various metal cations to improve the properties of strontium hexaferrites and to make the materials suitable for different applications [5][6][7][8][9][10][11][12][13][14] Hooda et al synthesized strontium hexaferrite (SrM) and its modified systems by solid-state technique. They represented the electric transport phenomena of these systems by impedance and modulus formalizes.…”

“…They reported that addition of La resulted in the increase in grain effect [16]. Likewise, Iqbal et al prepared Al-Gasubstituted nanocrystalline strontium hexaferrite and studied the dielectric constant and loss in the frequency range of 80 Hz-1 MHz at room temperature [17].Repeatedly, Iqbal et al modified nanocrystalline strontium hexaferrite by Zr-Zn and studied the electrical properties and found Zr-Zn-doped systems shows metal-to-semiconductor transition in the temperature range of 388-408 K [5].…”