On Magneto Optics of Neutrons and Some Related Phenomena
نویسنده
چکیده
Formulas are derived describing the phenomenon of total re6ection of neutrons by a ferrornagnet in dependence on the state of magnetization. It is shown how experiments of this kind can give information concerning the magnetic interaction between neutrons and atomic magnetic moments. A method to obtain well-polarized neutron beams with an intensity loss of only 50 percent of the primary beam is outlined. The eRect of pure magnetic scattering and its influence on the transmission eRect is discussed; an experimental arrangement for its observation is described. The signi6cance of the approach to saturation in the single transmission eRect is discussed in connection with the saturation theory of ferromagnets. Remarks are made concerning the possibility of detecting wall eRects of magnetic domains through depolarization of neutron beams,
منابع مشابه
Longitudinal Magneto-Optical Kerr Effect in Ce:YIG Thin Films Incorporating Gold Nanoparticles
We report an experimental study on optical and magneto-optical properties of Cesubstituted yttrium iron garnet thin films incorporating gold nanoparticles. Au nanoparticles were formed by heating Au thin film on cubic quartz and garnet substrate in vacuum chamber and a Ce:YIG layer was deposited on them by the aid of Pulsed laser deposition method. A large enhancement of the longitudinal Kerr e...
متن کاملMultiple Solutions for Slip Effects on Dissipative Magneto-Nanofluid Transport Phenomena in Porous Media: Stability Analysis
In the present paper, a numerical investigation of transport phenomena is considered in electrically-conducting nanofluid flow within a porous bed utilizing Buongiorno’s transport model and Runge-Kutta-Fehlberg fourth-fifth order method. Induced flow by non-isothermal stretching/shrinking sheet along with magnetic field impact, dissipation effect, and slip conditions at the surface are...
متن کاملAnalytical Solution of Linear, Quadratic and Cubic Model of PTT Fluid
An attempt is made for the first time to solve the quadratic and cubic model of magneto hydrodynamic Poiseuille flow of Phan-Thein-Tanner (PTT). A series solution of magneto hydrodynamic (MHD) flow is developed by using homotopy perturbation method (HPM). The results are presented graphically and the effects of non-dimensional parameters on the flow field are analyzed. The results reveal many i...
متن کاملDissimilar permittivity and permeability sensitivities in nonlinear plasmons and spoof plasmons.
We show that employing localized surface plasmon resonators to probe environmental media will always lead to dissimilar optical sensitivities to permittivity and permeability. We find that while the permittivity sensitivities of diverse plasmonic structures display a geometry-independent universal scaling relation, the permeability sensitivities are highly dependent on the metals' geometries an...
متن کاملLinear and nonlinear magneto-optics of ferritin.
Measurements of Rayleigh light scattering and Cotton-Mouton (CM) effect are carried out at room temperature for 100 mM NaCl solutions of apoferritin/ferritin loaded with 0, 90, 100, 500, 700, and 1500 Fe atoms/molecule. Because of the spherical shape, ferritin macromolecule should not manifest magnetic anisotropy; however, in solution it shows the induced magnetic birefringence (CM effect) and ...
متن کامل