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Quantum oscillations of the critical current of asymmetric superconducting rings and systems of the rings
V. L. Gurtovoi, M. Exarchos, R. Shaikhaidarov +3
The quantum oscillations in magnetic field of the critical current of asymmetric superconducting rings with different widths of the half-rings are shifted to opposite sides for mea…
Magnetic dependence of the critical and persistent current of asymmetric superconducting rings
V. L. Gurtovoi, S. V. Dubonos, A. V. Nikulov +2
The obtained periodic magnetic-field dependencies of the critical current, measured in opposite directions on asymmetric superconducting aluminum rings, allow to explain observed e…
Vortex states in mesoscopic superconducting squares: Formation of vortex shells
H. J. Zhao, V. R. Misko, F. M. Peeters +3
We analyze theoretically and experimentally vortex configurations in mesoscopic superconducting squares. Our theoretical approach is based on the analytical solution of the London…
Observation of the Little-Parks Oscillations in a System of Asymmetric Superconducting Rings
A. A. Burlakov, V. L. Gurtovoi, S. V. Dubonos +2
Little-Parks oscillations are observed in a system of 110 series-connected aluminum rings 2000 nm in diameter with the use of measuring currents from 10 nA to 1000 nA. The measurem…
Asymmetry with respect to the magnetic field direction in the interaction between the quantum states of two coupled superconducting rings
V. I. Kuznetsov, A. A. Firsov, S. V. Dubonos +1
The interaction between the quantum states of two aluminum superconducting rings forming an 8-shape circular-asymmetric microstructure was examined under a threading magnetic flux…
Quantum oscillations of rectified dc voltage as a function of magnetic field in an "almost" symmetric superconducting ring
V. I. Kuznetsov, A. A. Firsov, S. V. Dubonos
Periodic quantum oscillations of a rectified dc voltage Vdc(B) vs the perpendicular magnetic field B were measured near the critical temperature Tc in a single superconducting alum…