Coherent current states in a two-band superconductor
Homogeneous current states in thin films and Josephson current in superconducting microbridges are studied within the frame of a two-band Ginzburg–Landau theory. By solving the coupled system of equations for two order parameters the depairing current curves and Josephson current-phase relation ar...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2007 |
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| Format: | Artikel |
| Sprache: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2007
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Coherent current states in a two-band superconductor / Y.S. Yerin, A.N. Omelyanchouk // Физика низких температур. — 2007. — Т. 33, № 5. — С. 538-545. — Бібліогр.: 36 назв. — англ. |
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Yerin, Y.S. Omelyanchouk, A.N. 2017-12-28T13:01:49Z 2017-12-28T13:01:49Z 2007 Coherent current states in a two-band superconductor / Y.S. Yerin, A.N. Omelyanchouk // Физика низких температур. — 2007. — Т. 33, № 5. — С. 538-545. — Бібліогр.: 36 назв. — англ. 0132-6414 PACS: 74.25.Fy, 74.81.Fa https://nasplib.isofts.kiev.ua/handle/123456789/127811 Homogeneous current states in thin films and Josephson current in superconducting microbridges are studied within the frame of a two-band Ginzburg–Landau theory. By solving the coupled system of equations for two order parameters the depairing current curves and Josephson current-phase relation are calculated for different values of phenomenological parameters and . Coefficients and describe the coupling of order parameters (proximity effect) and their gradients (drag effect), respectively. For definite values of parameters the dependence of current j on superfluid momentum q contains local minimum and corresponding bi-stable states. It is shown that the Josephson microbridge from two-band superconductor can demonstrate -junction behavior. The authors would like to acknowledge S.V. Kuplevakhsky for useful discussions. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Свеpхпpоводимость, в том числе высокотемпеpатуpная Coherent current states in a two-band superconductor Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Coherent current states in a two-band superconductor |
| spellingShingle |
Coherent current states in a two-band superconductor Yerin, Y.S. Omelyanchouk, A.N. Свеpхпpоводимость, в том числе высокотемпеpатуpная |
| title_short |
Coherent current states in a two-band superconductor |
| title_full |
Coherent current states in a two-band superconductor |
| title_fullStr |
Coherent current states in a two-band superconductor |
| title_full_unstemmed |
Coherent current states in a two-band superconductor |
| title_sort |
coherent current states in a two-band superconductor |
| author |
Yerin, Y.S. Omelyanchouk, A.N. |
| author_facet |
Yerin, Y.S. Omelyanchouk, A.N. |
| topic |
Свеpхпpоводимость, в том числе высокотемпеpатуpная |
| topic_facet |
Свеpхпpоводимость, в том числе высокотемпеpатуpная |
| publishDate |
2007 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
Homogeneous current states in thin films and Josephson current in superconducting microbridges are
studied within the frame of a two-band Ginzburg–Landau theory. By solving the coupled system of equations
for two order parameters the depairing current curves and Josephson current-phase relation are calculated
for different values of phenomenological parameters and . Coefficients and describe the coupling
of order parameters (proximity effect) and their gradients (drag effect), respectively. For definite values of
parameters the dependence of current j on superfluid momentum q contains local minimum and corresponding
bi-stable states. It is shown that the Josephson microbridge from two-band superconductor can demonstrate
-junction behavior.
|
| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/127811 |
| citation_txt |
Coherent current states in a two-band superconductor / Y.S. Yerin, A.N. Omelyanchouk // Физика низких температур. — 2007. — Т. 33, № 5. — С. 538-545. — Бібліогр.: 36 назв. — англ. |
| work_keys_str_mv |
AT yerinys coherentcurrentstatesinatwobandsuperconductor AT omelyanchoukan coherentcurrentstatesinatwobandsuperconductor |
| first_indexed |
2025-12-07T18:51:15Z |
| last_indexed |
2025-12-07T18:51:15Z |
| _version_ |
1850876598986735616 |