Using a computational procedure, the real and imaginary components of the circumferential permeability could be determined from the complex impedance data. We show that the temperature dependence of the permeability is useful to study magnetic phase transitions, whereas valuable information on domain-wall...
The effective magnetic permeability mu and effective dielectric constant epsilon are two equally important quantities for the characterization of electromagnetic properties of composites. For granular ferromagnetic metals, however, the presence of permanent magnetic moments means that the Maxwell-Garnett theory...
Substitution of expression for M makes B = μH, where μ = μ0(1 +χ) is the magnetic permeability of matter. The entire information about susceptibility of an object and how it is related to the B, or B0 as it is called in MR imaging, is lumped into μ through χ. Modulation of...
Soft magnetic materials with stable permeability up to hundreds of megahertz (MHz) are urgently needed for integrated transformers and inductors, which are crucial in the more-than-Moore era. However, traditional frequency-stable soft magnetic ferrites suffer from low saturation magnetization and temperat...
Figure 3a shows the excellent ferromagnetic properties of a magnetic sheath with the residual magnetization Mr, coercivity Hc, and relative permeability of 34 emu/g, 710 mT, and 1.02, respectively. Thus, the MME fiber/structure can be magnetized to saturation with a pulsed magnetic field (...
53.0% and this trend is expected to continue during the forecast period. These materials have smaller areas enclosed by their hysteric loop. These materials have low coercivity and remnant magnetization and high initial permeability. Also, eddy current and hysteresis losses are low in these materials...
relative permeability H: magnetomotance (A/m) l: magnetic flux iron path length (m) lg: magnetic gap (m) F: force (N) J: current density (A/m2) I: current (A) α: pole inclination angle N: coils number of turns Ag: magnetic pole area (m2) ...
The diamagnetic susceptibility, χD, in units of emu mol−1 [cgs] or m3 mol−1 [SI] is given by χD=−ne26mec2⟨r2⟩ [cgs]=−nμ0e26me⟨r2⟩ [SI], (2) where n is the number of electrons per mole, μ0 is the vacuum permeability, e is the elementary ...
of porosity and damping factor17. The magnetic permeability and magnetic loss measurements in the range 100 MHz to 1.5 GHz, reveals that 1.32 ≤ μ′ ≤ 1.68 for the permeability of BaFe12O19and 1.16 < μ′ ≤ 1.88 for SrFe12O19. The BaFe12O19presented lower loss...
(where, kB: Boltzmann constant (1.38×10−23 J/K), T: temperature (K), Xirr: irreversible magnetic susceptibility, μ0: magnetic permeability of vacuum, S: magnetic viscosity coefficient, Ms: saturation magnetization (emu/cm3)) The irreversible magnetic susceptibility Xirr, the saturation magneti...