Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Gokhfeld, Denis"'
Autor:
Gokhfeld, Denis
Publikováno v:
Physica C 619 (2024) 1354486
The magnetization of superconducting samples is influenced by their porosity. In addition to structural modifications and improved cooling, the presence of pores also plays a role in trapping magnetic flux. Pores have an impact on the irreversibility
Externí odkaz:
http://arxiv.org/abs/2309.06839
Autor:
Gokhfeld, Denis
Holes drilled in a type-II superconductor trap the magnetic flux. Following Clem's flux pinning model, we consider surface pinning as a mechanism for compressing the magnetic flux in the holes. Estimations of the trapped magnetic flux demonstrate tha
Externí odkaz:
http://arxiv.org/abs/2303.12315
Autor:
Gokhfeld, Denis
Publikováno v:
In Physica C: Superconductivity and its applications 15 April 2024 619
Autor:
Gokhfeld, Denis
Publikováno v:
Tech. Phys. Lett. 45 3-5 (2019)
A method is proposed for estimating the length scale of currents circulating in superconductors. The estimated circulation radius is used to determine the critical current density on the basis of magnetic measurements. The obtained formulas are appli
Externí odkaz:
http://arxiv.org/abs/1901.06797
Autor:
Gokhfeld, Denis
Publikováno v:
Journal of Superconductivity and Novel Magnetism 31 1785-1789 (2018)
Order-disorder transitions of a vortex lattice transfer type-II superconductors from a low critical current state to a high one. The similar transition between different current states can be caused by electromagnetic granularity. A sigmoid curve is
Externí odkaz:
http://arxiv.org/abs/1709.10291
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
Gokhfeld, Denis
Publikováno v:
J. Phys. Conf. Ser. 695 (2016) 012008
Applications of the extended critical state model are considered. The trapped magnetic field, the penetration field and the field dependence of the critical current density are analysed. The critical current density and the trapped field in supercond
Externí odkaz:
http://arxiv.org/abs/1511.07225
Autor:
Gokhfeld, Denis
Publikováno v:
Journal of Superconductivity and Novel Magnetism 26, 281 (2013)
Asymmetric magnetization loops with a second peak effect were parameterized by the extended critical state model. The magnetic field distribution in a sample is considered. Expression is suggested for a peak of the critical current density and corres
Externí odkaz:
http://arxiv.org/abs/1205.3884
Autor:
Gokhfeld, Denis
Publikováno v:
2007 Supercond. Sci. Technol. 20 62-66
Simplified model for current-voltage characteristics of weak links is suggested. It is based on an approach considering the multiple Andreev reflection in metallic Josephson junction. The model allows to calculate current-voltage characteristics of t
Externí odkaz:
http://arxiv.org/abs/cond-mat/0609541
Autor:
Gokhfeld, Denis
Publikováno v:
Physica C 460-462 (2007) 807-808
Simplified model for current-voltage characteristics of weak links is suggested. It is based on approach which considers Andreev reflections as responsible for the dissipative current through the metallic Josephson junction. The model allows to calcu
Externí odkaz:
http://arxiv.org/abs/cond-mat/0605427