Diffraction-like stratified magnetic field in a device of circular rings

Published on Jan 4, 2021in Journal of Applied Physics2.286
· DOI :10.1063/5.0031465
Yiannis Contoyiannis19
Estimated H-index: 19
(UoA: National and Kapodistrian University of Athens),
Stelios M. Potirakis17
Estimated H-index: 17
+ 1 AuthorsMyron Kampitakis2
Estimated H-index: 2
A device consisting of an array of coaxial, identical, circular rings behaves like a solenoid when the ratio of its radius and distance between two successive rings is higher than 1. As this ratio decreases, the device significantly deviates from the solenoid behavior. At the same time, a diffraction-like phenomenon for the magnetic field appears when currents of random direction flow through the rings. This phenomenon demonstrates critical behavior. Thus, an extension of the diffraction phenomenon can be done beyond the classical wave diffraction. A possible application of this device could be the diffraction of charged particle beams.
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We study the magnetic field fluctuations generated by an array of circular currents with axial symmetry. The fluctuations are induced via the random orientation of the current in each ring. By increasing the number of rings per unit length, we observe a transition from a continuous to a stratified spectrum of possible magnetic field values at a fixed location on the symmetry axis. A semi-analytical description of the properties characterising this transition is obtained revealing the competition...
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