Geometric edge barrier in the Shubnikov phase of type II superconductors
In type II superconductors the magnetic response can be irreversible due to two different reasons: vortex pinning and barriers for flux penetration. Even without bulk pinning and in absence of a microscopic Bean-Livingston surface barrier for vortex penetration, superconductors of nonell...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2001 |
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| Format: | Artikel |
| Sprache: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2001
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/129001 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Geometric edge barrier in the Shubnikov phase of type II superconductors / E.H. Brandt // Физика низких температур. — 2001. — Т. 27, № 9-10. — С. 980-990. — Бібліогр.: 51 назв. — англ. |
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Brandt, E.H. 2018-01-15T08:39:05Z 2018-01-15T08:39:05Z 2001 Geometric edge barrier in the Shubnikov phase of type II superconductors / E.H. Brandt // Физика низких температур. — 2001. — Т. 27, № 9-10. — С. 980-990. — Бібліогр.: 51 назв. — англ. 0132-6414 PACS: 74.60.Ge https://nasplib.isofts.kiev.ua/handle/123456789/129001 In type II superconductors the magnetic response can be irreversible due to two different reasons: vortex pinning and barriers for flux penetration. Even without bulk pinning and in absence of a microscopic Bean-Livingston surface barrier for vortex penetration, superconductors of nonellipsoidal shape can exhibit a large geometric barrier for flux penetration. This edge barrier and the resulting irreversible magnetization loops and flux-density profiles are computed from continuum electrodynamics for superconductor strips and disks with constant thickness, both without and with bulk pinning. Expressions are given for the field of first flux entry Hen and for the reversibility field Hrev above which the pin-free magnetization becomes reversible. Both fields are proportional to the lower critical field Hc1 but else depend only on the specimen shape. These results for rectangular cross section are compared with the well known reversible magnetic behavior of ideal ellipsoids. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Статьи, посвященные столетию со дня рождения Л. В. Шубникова Geometric edge barrier in the Shubnikov phase of type II superconductors Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Geometric edge barrier in the Shubnikov phase of type II superconductors |
| spellingShingle |
Geometric edge barrier in the Shubnikov phase of type II superconductors Brandt, E.H. Статьи, посвященные столетию со дня рождения Л. В. Шубникова |
| title_short |
Geometric edge barrier in the Shubnikov phase of type II superconductors |
| title_full |
Geometric edge barrier in the Shubnikov phase of type II superconductors |
| title_fullStr |
Geometric edge barrier in the Shubnikov phase of type II superconductors |
| title_full_unstemmed |
Geometric edge barrier in the Shubnikov phase of type II superconductors |
| title_sort |
geometric edge barrier in the shubnikov phase of type ii superconductors |
| author |
Brandt, E.H. |
| author_facet |
Brandt, E.H. |
| topic |
Статьи, посвященные столетию со дня рождения Л. В. Шубникова |
| topic_facet |
Статьи, посвященные столетию со дня рождения Л. В. Шубникова |
| publishDate |
2001 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
In type II superconductors the magnetic response
can be irreversible due to two different reasons: vortex pinning and barriers for flux
penetration. Even without bulk pinning and in absence of a microscopic Bean-Livingston
surface barrier for vortex penetration, superconductors of nonellipsoidal shape can exhibit
a large geometric barrier for flux penetration. This edge barrier and the resulting
irreversible magnetization loops and flux-density profiles are computed from continuum
electrodynamics for superconductor strips and disks with constant thickness, both without
and with bulk pinning. Expressions are given for the field of first flux entry Hen and for
the reversibility field Hrev above which the pin-free magnetization becomes reversible.
Both fields are proportional to the lower critical field Hc1 but else depend only on the
specimen shape. These results for rectangular cross section are compared with the well
known reversible magnetic behavior of ideal ellipsoids.
|
| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/129001 |
| citation_txt |
Geometric edge barrier in the Shubnikov phase of type II superconductors / E.H. Brandt // Физика низких температур. — 2001. — Т. 27, № 9-10. — С. 980-990. — Бібліогр.: 51 назв. — англ. |
| work_keys_str_mv |
AT brandteh geometricedgebarrierintheshubnikovphaseoftypeiisuperconductors |
| first_indexed |
2025-12-07T19:57:19Z |
| last_indexed |
2025-12-07T19:57:19Z |
| _version_ |
1850880755626934272 |