Related Experiment Video
Updated: Aug 9, 2026

Magnetically Induced Rotating Rayleigh-Taylor Instability
Published on: March 3, 2017
An exact magnetic-moment invariant of charged-particle gyromotion
1Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543, USA.
Abstract:
For the motion of a charged particle in a uniform, time-dependent axial magnetic field B(t)e(z), it is shown that there is an exact magnetic-moment invariant of the particle dynamics M, to which the adiabatic magnetic-moment invariant mu = mv2 perpendicular/2B is asymptotic when the time scale of the magnetic field variation is much slower than the gyroperiod. The connection between the exact invariant M and the adiabatic invariant mu enables us to characterize in detail the robustness of the adiabatic magnetic-moment invariant mu.
Related Concept Videos
Magnetic Moment of an Electron
Motion Of A Charged Particle In A Magnetic Field
Atomic Nuclei: Nuclear Magnetic Moment
Paramagnetism
Magnetic Field due to Moving Charges
Consider a point charge moving with a constant velocity. Like the electric field, the magnetic field at any point is directly proportional to the magnitude of the charge and inversely proportional to the square of the distance between the source point and the field point. However, unlike the electric field, the magnetic field is always perpendicular to the plane containing the line...
Diamagnetism
Diamagnetism was discovered by Anton Brugmans in 1778 when he observed that bismuth gets repelled by magnetic fields, thus theorizing that diamagnets get repelled by magnets.
