magnetic moment

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magnetic moment

An MRI term for a measure of the net magnetic properties of an object or particle, which is a sum of the intrinsic spins of the nuclei that have an associated magnetic dipole moment interacting with a magnetic field.
References in periodicals archive ?
Therefore, the ground state energy dependence becomes almost linear in accordance with formula (9) for n = 0, resulting in the magnetic dipole moment of a conical nanotube almost independent on the magnetic field and equal to the tangent of the aperture angle.
* By rotating (without translating) a magnetic dipole moment m in an external magnetic field B = [[mu].sub.0]H, Maxwell found previously from the change in potential energy W in Art.
Our measurements show that the magnetic torque method can be used to measure magnetic dipole moments of many permanent magnets with very good accuracy.
Equations (3a)-(3b) imply that the magnetic dipole moment obeys the transformation (see, e.g., Ref.
Case m = [m.sub.0] Relation between density of an electric current [j.sub.[perpendicular to]] and the magnetic dipole moment is defined from (45) in case when the magnetic dipole moment m is directed lengthwise z:
Heo, "Minimal Dirac fermionic dark matter with nonzero magnetic dipole moment," Physics Letters B, vol.
Here, the scalars [p.sub.-,2] and [m.sub.-,2] are the magnitudes of the electric dipole moment vector [p.sub.-,2] and the magnetic dipole moment vector [m.sub.-,2], respectively.
In Section 3, the distributions of free and magnetization currents resulting from this magnetic dipole are carefully considered and various possible definitions for the magnetic dipole moment are obtained.
In the magnetostatic problem, the magnetic dipole moment of the ring is determined from the condition of zero magnetic induction through the wire, such that the magnetic field component normal to the surface vanishes on the ring (i.e., [??] x ([H.sup.inc] + [H.sup.sc]) = 0, where [??](r) is the surface normal at r).
It can be seen that the induced current flows annularly along the SRR's arms, which produces the magnetic dipole moment and leads to the negative permeability effect of the SRR.
Primarily, the electric and magnetic dipole moments are the basic foundations for making metamaterials.