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32 papers
Segment of an inhomogeneous mesoscopic loop as a dc power source
S. V. Dubonos, V. I. Kuznetsov, A. V. Nikulov
A dc voltage changed periodically with magnetic field is observed on segments of asymmetric aluminum loop without any external dc current at temperatures corresponded to supercondu…
Contradiction between the results of observations of resistance and critical current quantum oscillations in asymmetric superconducting rings
V. L. Gurtovoi, S. V. Dubonos, S. V. Karpii +2
Magnetic field dependences of critical current, resistance, and rectified voltage of asymmetric (half circles of different widths) and symmetrical (half circles of equal widths) al…
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…