DMS solutions Mg(Fe1-x Ga x )2O4+δ

Magnetic, Electrical and Magnetotransport Properties of Mg(Fe0.8Ga0.2)2O4 δ Obtained by Pyrohtdrolitic Method

“…These data show that an increase in temperature considerably increases the unit cell parameter а of the spinel lattice. Apparently, temperature elevation leads to complex disordering processes in the crystal lattice of Mg(Fe 0.8 Ga 0.2 ) 2 O 4+δ [10]. Data of X-ray diffraction show that this compound is single-phase and thermostable in temperature range until 590 K, which makes this compound perspective for semiconductor electronics (the temperature range of stability for the materials used for semiconducting electronics is from −50˚C till 150˚C [11].…”

“…The spins of the B site cations are canted and make a certain angle [8]. In previously works [9] [10], the authors noticed that more perspective compound in the solid solutions range Mg(Fe 1−x Ga x ) 2 O 4+δ (0 < x < 1) for investigation magnetoresistive effect is Mg(Fe 0.8 Ga 0.2 ) 2 O 4+δ . This compound is characterized by maximal values of magnetization (М S = 28 emu/g), and conductivity (~10 −8 Sm/m).…”

Analysis on the microstructure and magnetic properties of MgGaFeO4 spinel compound

“…Pyrolysis of polycarbosilane polyme by Key et al 43 magnetic semiconductor materials that can maintain the spin orientation of carriers above room temperature for use in the design of magnetoelectric devices is currently under active development. [6][7][8][9][10][11][12][13][14] Moreover, there are other types of ferrite materials, such as composite iron oxides, hexaferrite, dielectric oxides, and superconducting oxides, which also have practical application prospects. [15][16][17][18] In the mixed spinel cubic structure with the space group Fd3m (No.…”

Bidisperse Magnetic Particles Coated with Gelatin and Graphite Oxide: Magnetorheology, Dispersion Stability, and the Nanoparticle-Enhancing Effect

“…Recently, it was reported that the filling with nanoparticles was an effective method to reduce the sedimentation of larger particles in MR fluids [12,13,14,15,16,17,18,19,20]. Leong et al [21] prepared bidisperse magnetic particles (BMP) composed of γ -Fe 2 O 3 nanoparticles with an average size of 9 nm and carbonyl iron (CI) particles to investigate the rheological properties and sedimentation rate of the MR fluids.…”