magnetic dispersion
1.Derivation of magnetic polaritons dispersion equation by the antiferromagnetic film in Otto configuration
2.ESCA(electron spectroscopy for chemical analysis),XRD(X-ray diffraction),PASCA(positron annihilation spectroscopy for chemical analysis)and magnetic measurement technique were used to investigate the dispersion of WO_3 on γ-alumina.
3.Poly(ethylene oxide) macromonomer (MPEO) was synthesized by the reaction of acryloyl chloride and biamino poly(ethylene oxide)(NH_2-PEO-NH_2) prepared from PEG by Gabriel reduction. Amphiphilic polymer magnetic microspheres containing amino groups were prepared by dispersion copolymerization of styrene and MPEO in the presence of Fe_3O_4 magnetic fluid in ethanol/water medium.
4.Brillouin scattering spectra of bismuth substituted iron garnets Bi_xY_(3-x)Fe_5O_(12) (x = 0, 0.14, 0.36, 0.54) were measured. The thermally excited bulk magnons were observed. Some magnetic parameters of these samples were determined according to the dispersion relation of the bulk magnons.
5.The numerical results show that the EM modes of a magnetic layer system are excited and manifested as the sharp dips in the S-polarized reflection, and the dispersion curves of magnetic polaritons can be measured by a method similar to attenuated total reflection (ATR) technique.
6.Here, the effect of the longitudinal uniform magnetic field on the wave-beam interaction of the plasma dielectric Cherenkov maser is examined by solving the beam-plasma, dielectric lined waveguide dispersion equation. And the effects of the longitudinal magnetic field, plasma density and dielectric parameters on the linear spatial growth rate and the energy ratio are presented.
7.TEM measurement shows that the dispersion of the magnetic particle in the carrier is quite homogeneous and the average size of the particle is 15-20 nm.
8.The dispersion relations and magnetic-field (Hx) as well as two electric-field (Ey and Ez) profiles for nonlinear TM waves in MQW waveguides with different nonlinear mechanisms are presented.
9.The theory of the magnetostatic modes of a ferro-magnetic single film by Damon and Eshbach(1) has been extended to hetero-magnetization bilayer film systems with uniaxial and cubic anisotropy. The dispersion equation is derived by taking into account the effects of k1 and k2. The magnetostatic mode spectra of LaGa : YIG-La : YIG bilayer films are analyzed.
10.The influence of ageing temperature of the negative AE effect and internal friction Q-1 of dispersion-hardened Elinvar alloy Fe-Ni-Cr-Ti under the action of a DC magnetic field was studied.
