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Aharonov-Bohm oscillations in the vortex dynamics in superconducting hollow cylinders | | V. N. Gladilin
; J. Tempere
; J. T. Devreese
; V. V. Moshchalkov
; | | Date: |
14 Nov 2012 | | Abstract: | Using time-dependent Ginzburg-Landau theory we demonstrate that the
Aharonov-Bohm (AB) effect, resulting from a Berry phase shift of the
(macroscopic) wavefunction, is revealed through the dynamics of topological
phase defects present in that same wavefunction. We study vortices and
antivortices on the surface of a hollow superconducting cylinder, moving on
circular orbits as they are subjected to the force from the current flowing
parallel to the cylinder axis. Due to the AB effect the orbit deflections,
caused by a magnetic field component along the cylinder axis, become periodic
as a function of field, leading to strong and robust resistance oscillations. | | Source: | arXiv, 1211.3261 | | Services: | Forum | Review | PDF | Favorites | |
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