Enhancement of the Josephson current by magnetic field in superconducting tunnel structures with a paramagnetic spacer
The dc Josephson critical current of a (S/M)IS tunnel structure in a parallel magnetic field is investigated (here S is a superconductor, S/M is a proximity-coupled S and paramagnetic metal M bilayer, and I is an insulating barrier). We consider the case when, due to Hund’s rule, in the metal...
Збережено в:
| Опубліковано в: : | Физика низких температур |
|---|---|
| Дата: | 2005 |
| Автори: | , |
| Формат: | Стаття |
| Мова: | Russian |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2005
|
| Теми: | |
| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/121390 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Enhancement of the Josephson current by magnetic field in superconducting tunnel structures with a paramagnetic spacer / V.N. Krivoruchko, E.A. Koshina // Физика низких температур. — 2005. — Т. 31, № 2. — С. 164-168. — Бібліогр.: 24 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
nasplib_isofts_kiev_ua-123456789-121390 |
|---|---|
| record_format |
dspace |
| spelling |
Krivoruchko, V.N. Koshina, E.A. 2017-06-14T09:14:49Z 2017-06-14T09:14:49Z 2005 Enhancement of the Josephson current by magnetic field in superconducting tunnel structures with a paramagnetic spacer / V.N. Krivoruchko, E.A. Koshina // Физика низких температур. — 2005. — Т. 31, № 2. — С. 164-168. — Бібліогр.: 24 назв. — англ. 0132-6414 PACS: 74.78.Fk, 74.50.+ r https://nasplib.isofts.kiev.ua/handle/123456789/121390 The dc Josephson critical current of a (S/M)IS tunnel structure in a parallel magnetic field is investigated (here S is a superconductor, S/M is a proximity-coupled S and paramagnetic metal M bilayer, and I is an insulating barrier). We consider the case when, due to Hund’s rule, in the metal M the effective molecular interaction aligns the spins of the conduction electrons antiparallel to the localized spins of magnetic ions. It is predicted that for the tunnel structures under consideration there are conditions such that the destructive action of the internal and the applied magnetic fields on Cooper pairs is weakened, and increase of the applied magnetic field causes field-induced enhancement of the critical tunnel current. The experimental realization of this interesting effect of the interplay between superconductivity and magnetism is also discussed. We thank Dr. M. Belogolovskii for helpful discussions. ru Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Свеpхпpоводимость, в том числе высокотемпеpатуpная Enhancement of the Josephson current by magnetic field in superconducting tunnel structures with a paramagnetic spacer Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Enhancement of the Josephson current by magnetic field in superconducting tunnel structures with a paramagnetic spacer |
| spellingShingle |
Enhancement of the Josephson current by magnetic field in superconducting tunnel structures with a paramagnetic spacer Krivoruchko, V.N. Koshina, E.A. Свеpхпpоводимость, в том числе высокотемпеpатуpная |
| title_short |
Enhancement of the Josephson current by magnetic field in superconducting tunnel structures with a paramagnetic spacer |
| title_full |
Enhancement of the Josephson current by magnetic field in superconducting tunnel structures with a paramagnetic spacer |
| title_fullStr |
Enhancement of the Josephson current by magnetic field in superconducting tunnel structures with a paramagnetic spacer |
| title_full_unstemmed |
Enhancement of the Josephson current by magnetic field in superconducting tunnel structures with a paramagnetic spacer |
| title_sort |
enhancement of the josephson current by magnetic field in superconducting tunnel structures with a paramagnetic spacer |
| author |
Krivoruchko, V.N. Koshina, E.A. |
| author_facet |
Krivoruchko, V.N. Koshina, E.A. |
| topic |
Свеpхпpоводимость, в том числе высокотемпеpатуpная |
| topic_facet |
Свеpхпpоводимость, в том числе высокотемпеpатуpная |
| publishDate |
2005 |
| language |
Russian |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
The dc Josephson critical current of a (S/M)IS tunnel structure in a parallel magnetic field is
investigated (here S is a superconductor, S/M is a proximity-coupled S and paramagnetic metal M
bilayer, and I is an insulating barrier). We consider the case when, due to Hund’s rule, in the
metal M the effective molecular interaction aligns the spins of the conduction electrons
antiparallel to the localized spins of magnetic ions. It is predicted that for the tunnel structures
under consideration there are conditions such that the destructive action of the internal and the
applied magnetic fields on Cooper pairs is weakened, and increase of the applied magnetic field
causes field-induced enhancement of the critical tunnel current. The experimental realization of
this interesting effect of the interplay between superconductivity and magnetism is also discussed.
|
| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/121390 |
| citation_txt |
Enhancement of the Josephson current by magnetic field in superconducting tunnel structures with a paramagnetic spacer / V.N. Krivoruchko, E.A. Koshina // Физика низких температур. — 2005. — Т. 31, № 2. — С. 164-168. — Бібліогр.: 24 назв. — англ. |
| work_keys_str_mv |
AT krivoruchkovn enhancementofthejosephsoncurrentbymagneticfieldinsuperconductingtunnelstructureswithaparamagneticspacer AT koshinaea enhancementofthejosephsoncurrentbymagneticfieldinsuperconductingtunnelstructureswithaparamagneticspacer |
| first_indexed |
2025-12-07T20:45:20Z |
| last_indexed |
2025-12-07T20:45:20Z |
| _version_ |
1850883776332169216 |