The 1-D Camelback Potential in the Parallel Dipole Line Magnetic Trap: Physics and Applications
Abstract
We recently reported the discovery of a new type of field confinement effect that generates a fascinating 1-D camelback potential trap in a system of two lines of transverse dipoles. This effect is the key feature that enables the system to serve as a new type of natural magnetic trap called parallel dipole line (PDL) trap. The trap can be realized with a pair of cylindrical magnets with uniform transverse magnetization and a graphite rod as the trapped object. We show that the camelback potential effect only occurs when the length of the PDL system is beyond certain critical length (LC). We present more detailed experimental and theoretical studies of the finite size effect of the graphite rod and its impact on the stability and oscillation dynamics of the trap. The size (length and radius) of the magnets and the trapped rod determines the frequency and the damping of the oscillator respectively. We also discuss several applications of the trap such as for magnetic susceptometer and gas viscometer.
- Publication:
-
APS March Meeting Abstracts
- Pub Date:
- 2018
- Bibcode:
- 2018APS..MARE18006G