Dynamically Induced Magnetic Moment of a Magnetic Dipole System

2015 ◽  
Vol 16 (1) ◽  
pp. 49-60
Author(s):  
Anatoliy Michailovich Shutyǐ
Keyword(s):  
Magnetic Field ◽  
Numerical Analysis ◽  
Magnetic Dipole ◽  
Magnetic Moment ◽  
Total Magnetic Moment ◽  
Alternating Magnetic Field ◽  
Initial State ◽  
Dipole Magnetic Moment ◽  
Dipole System ◽  
Moment Control

AbstractThe systems of three and four spherical bodies with the dipole magnetic moment have been investigated using a numerical analysis. It was shown that in the initial state with the zero total magnetic moment under the influence of the alternating magnetic field, various regimes of the induced magnetic moment including quasistatic states are established. Revealed are the significant differences between these regimes related to different systems. The magnitude and direction of the magnetic moment of the system, as well the states of dynamic bistability, have been investigated. The possibilities of the induced magnetic moment control due to the changes in amplitude or frequency of the alternating field have been considered.

Comparison on Effect of Alternating and Stationary Magnetic Field on the Conductivity of NaCl Solutions

2011 ◽  
Vol 391-392 ◽  
pp. 1095-1099
Author(s):  
Lei Chen ◽  
Nan Li ◽  
Feng Chai ◽  
Shu Kang Cheng
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Magnetic Moment ◽  
Experimental Results ◽  
Alternating Magnetic Field ◽  
Stationary Magnetic Field ◽  
Conductivity Change

NaCl solutions of different concentrations were exposed to alternating and stationary magnetic fields. The conductivity change of the NaCl solutions was measured. The change of the conductivity of the NaCl solutions under different amplitudes magnetic fields was studied. The differences of effect between stationary and alternating magnetic field on the conductivity of the NaCl solutions was compared. The principle of the effects of magnetic fields on conductivity of NaCl solutions was discussed. The process of magnetic moment deflexion effected by the alternating magnetic field was analyzed, which explained the experimental results that the conductivity was increased more larger when then the NaCl solutions were exposing to alternating magnetic field than stationary magnetic field.

Influence of Rotation on the Magnetization of Dilute Suspensions of Magnetic Particles

2015 ◽  
Vol 233-234 ◽  
pp. 302-305
Author(s):  
Alexander Tyatyushkin
Keyword(s):  
Magnetic Field ◽  
Magnetic Dipole ◽  
Uniform Magnetic Field ◽  
Magnetic Particles ◽  
Brownian Particle ◽  
Dipole Moments ◽  
Magnetization Vector ◽  
Alternating Magnetic Field ◽  
System Of Equations ◽  
Dilute Suspensions

The influence of rotation on the magnetization of a suspension of spherical magnetic particles in a uniform magnetic field is investigated theoretically with taking into account the inertial effects. A rotation of a single spherical non-Brownian particle with an embedded magnetic moment under action of a rotational flow of the ambient liquid in an applied uniform magnetic field is considered. The system of equations is obtained that determines the rotation of the particle and the instant orientation of its magnetic dipole moment with taking into account both the inertia of the particles and that of the dispersion liquid of the suspension. The magnetization vector of a suspension of non-Brownian spherical magnetic particles is found for the suspension rotating in a uniform constant magnetic field and for that rotating in a sufficiently weak uniform alternating magnetic field. The system of equations is obtained for the function of distribution over the orientations of the magnetic dipole moments for a suspension of Brownian spherical magnetic particles rotating in a uniform magnetic field. The solution to this system of equations is obtained for a suspension rotating in a sufficiently weak alternating magnetic field. With the use of this solution, the magnetization vector of the suspension is found.

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