Zobrazeno 1 - 10
of 115
pro vyhledávání: '"Dubonos, S. V."'
Publikováno v:
Proceedings of 10th International Symposium "Nanostructures: Physics and Technology" St Petersburg: Ioffe Institute, p. 350 (2002)
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 superconducting transition. According to this experimental result a segment of t
Externí odkaz:
http://arxiv.org/abs/1112.6157
Publikováno v:
Proceedings of the 34 Meeting on the Low Temperature Physics, v.2, p.273-274 (2006)
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 magnetic flux value is observed in the conventional ring because of str
Externí odkaz:
http://arxiv.org/abs/1102.5681
Publikováno v:
Zh. Eksp. Teor. Fiz. 132, 297-303 (2007)
Magnetic field dependences of critical current, resistance, and rectified voltage of asymmetric (half circles of different widths) and symmetrical (half circles of equal widths) aluminum rings were measured in the temperature region close to the supe
Externí odkaz:
http://arxiv.org/abs/1011.6149
Publikováno v:
Zh. Eksp. Teor. Fiz. 132, 1320-1339 (2007)
The obtained periodic magnetic-field dependencies of the critical current, measured in opposite directions on asymmetric superconducting aluminum rings, allow to explain observed earlier quantum oscillations of a dc voltage as a result of alternating
Externí odkaz:
http://arxiv.org/abs/0903.3539
Publikováno v:
Phys. Rev. B 78, 104517 (2008)
We analyze theoretically and experimentally vortex configurations in mesoscopic superconducting squares. Our theoretical approach is based on the analytical solution of the London equation using Green's-function method. The potential-energy landscape
Externí odkaz:
http://arxiv.org/abs/0902.4174
Publikováno v:
JETP Letters vol. 86, pp. 517-521 (2007)
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 measurements show that the amplitude and character of the oscillations are ind
Externí odkaz:
http://arxiv.org/abs/0805.1223
Publikováno v:
V. I. Kuznetsov, A. A. Firsov, S. V. Dubonos, and M. V. Chukalina, Bulletin of the Russian Academy of Sciences: Physics 71, 1083 (2007)
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 and bias by an alternating current without a dc component. Quantum osc
Externí odkaz:
http://arxiv.org/abs/0712.1602
Publikováno v:
V. I. Kuznetsov, A. A. Firsov, S. V. Dubonos, Bulletin of the Russian Academy of Sciences: Physics 71, 1081 (2007)
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 aluminum almost symmetric ring (without specially created circular asymmet
Externí odkaz:
http://arxiv.org/abs/0711.4323
Publikováno v:
Phys. Rev. B 77, 094521 (2008).
We have measured periodic oscillations of rectified dc voltage versus magnetic field V_{dc}(B) in a superconducting aluminum thin-film circular-asymmetric figure-of-eight microstructure threaded by a magnetic flux and biased with a sinusoidal alterna
Externí odkaz:
http://arxiv.org/abs/0710.5246
Publikováno v:
in the Proceedings of 15th International Symposium "Nanostructures: Physics and Technology" St Petersburg: Ioffe Institute, p. 60 (2007)
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 phenomenon observed in superconductor loops is investigated.
Comm
Comm
Externí odkaz:
http://arxiv.org/abs/0707.0807