168 citations · 291 across the 25 of their papers we have counts for
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A development of superconducting differential double contour interferometer
V. L. Gurtovoi, V. N. Antonov, A. V. Nikulov +2
We study operation of a new device, the superconducting differential double contour interferometer (DDCI), in application for the ultra sensitive detection of magnetic flux and for…
Multiple superconducting ring ratchets for ultrasensitive detection of non-equilibrium noise
V. L. Gurtovoi, M. Exarchos, V. N. Antonov +2
Magnetic quantum periodicity in the dc voltage is observed when asymmetric rings are switched between superconducting and normal state by a noise or ac current. This quantum effect…
Superconducting quantum interference device without Josephson junctions
A. A. Burlakov, V. L. Gurtovoi, A. I. Ilin +2
A new type of a superconducting quantum interference device (SQUID) based on a single superconducting loop without Josephson junctions and with asymmetric link-up of current leads…
A possibility of persistent voltage observation in a system of asymmetric superconducting rings
A. A. Burlakov, V. L. Gurtovoi, A. I. Ilin +2
A possibility to observe the persistent voltage in a superconducting ring of different widths of the arms is experimentally investigated. It was earlier found that switching of the…
Multiple Current States of Two Phase-Coupled Superconducting Rings
V. L. Gurtovoi, A. A. Burlakov, A. V. Nikulov +5
The states of two phase-coupled superconducting rings have been investigated. Multiple current states have been revealed in the dependence of the critical current on the magnetic f…
Experimental investigations of the change with magnetic flux of quantum number in superconducting ring
A. V. Burlakov, V. L. Gurtovoi, A. I. Ilin +2
The magnetic dependencies of the critical current of aluminum ring with asymmetric link-up of current leads have been measured in order to clear up the essence of the paradoxical a…
Two permitted states of superconducting ring observed at measurements of its critical current
V. L. Gurtovoi, S. V. Dubonos, A. V. Nikulov +1
Magnetic dependencies of the critical current of superconducting, aluminium rings, with homogeneous section and with small narrow spot, are measured. Only permitted state at each m…
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…
Could dissipationless current be observed at non-zero resistance?
V. L. Gurtovoi, A. I. Ilin, A. V. Nikulov +1
The persistent current, i.e. the equilibrium direct electric current circulating in realistic rings, some authors interpreted as dissipationless in spite of non-zero resistance of…
Weak dissipation does not result in disappearance of persistent current
V. L. Gurtovoi, A. I. Ilin, A. V. Nikulov +1
Experimental results obtained last years corroborate a prediction made by I.O. Kulik forty years ago that the energy dissipation does not result in disappearance of equilibrium cir…
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…
Aharonov-Bohm effects in nanostructures
V. L. Gurtovoi, A. V. Nikulov, V. A. Tulin
Measurements of the Little-Parks oscillations at measuring current much lower than the persistent current give unambiguous evidence of the dc current flowing against the force of t…
The dc voltage proportional to the persistent current observed on system of asymmetric mesoscopic loops
V. L. Gurtovoi, A. I. Il'in, A. V. Nikulov +1
The observations of the dc voltage proportional to the persistent current on system of asymmetric superconductor loops at a non-zero resistance raise a question on a nature of this…
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…
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…
Can dc voltage proportional to the persistent current be observed on segment of asymmetric mesoscopic ring?
S. V. Dubonos, V. L. Gurtovoi, A. V. Nikulov +1
In order to clear up a question on possibility of a dc voltage proportional to the persistent current in normal metal and semiconductor mesoscopic loops conjectural causes of this…
Investigation of possibility of creation of a superconductor quantum register
A. A. Burlakov, V. L. Gurtovoi, S. V. Dubonos +2
Multiple and single measurements of quantum states of mesoscopic superconducting loops are carried out in order to investigate a possibility of macroscopic quantum superposition an…
Multiple and single measurements of a mesoscopic quantum system with two permitted states
A. A. Burlakov, V. L. Gurtovoi, S. V. Dubonos +2
Mesoscopic loop is proposed in many works as possible solid-state quantum bit, i.e. two-state quantum system. The quantum oscillations of resistance and of rectified voltage observ…
Calibration of quantum detector of noise based on a system of asymmetric superconducting loops
V. L. Gurtovoi, S. V. Dubonos, A. V. Nikulov +2
The quantum oscillations of the dc voltage are induced on segments of asymmetric superconducting loops by an external ac current or noise. The dependencies of the amplitude of the…
Could two degenerate energy states be observed for a superconducting ring at /2?
A. A. Burlakov, V. L. Gurtovoi, S. V. Dubonos +2
The Little-Parks oscillations of the resistance and the quantum oscillations of the rectified voltage observed for asymmetric superconducting Al rings give experimental evidence of…
Quantum oscillations of the rectified voltage and the critical current of asymmetric mesoscopic superconducting loops
V. L. Gurtovoi, S. V. Dubonos, A. V. Nikulov +2
The current-voltage curves and magnetic dependence of the critical current of asymmetric superconducting loops are measured. It was found that sign and value of the asymmetry of th…
Quantum detector of noise based on a system of asymmetric Al superconducting rings
V. L. Gurtovoi, S. V. Dubonos, R. V. Kholin +3
The quantum rectification effect observed on asymmetric superconducting loops is proposed to use as a basic of a noise detector with maximum sensitivity. The measurements show that…
Quantum Oscillations of the Critical Current of Asymmetric Aluminum Loops in Magnetic Field
V. L. Gurtovoi, S. V Dubonos, A. V. Nikulov +2
The periodical dependencies in magnetic field of the asymmetry of the current-voltage curves of asymmetric aluminum loop are investigated experimentally at different temperatures b…