Motion of vortices in ferromagnetic spin-1 BEC
The paper investigates dynamics of nonsingular vortices in a ferromagnetic spin-1 BEC, where spin and mass superfluidity coexist in the presence of uniaxial anisotropy (linear and quadratic Zeeman effect). The analysis is based on hydrodynamics following from the Gross–Pitaevskii theory. Cores of no...
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| Дата: | 2018 |
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| Автор: | |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2018
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| Назва видання: | Физика низких температур |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/176194 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Motion of vortices in ferromagnetic spin-1 BEC / E.B. Sonin // Физика низких температур. — 2018. — Т. 44, № 7. — С. 838-846. — Бібліогр.: 26 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
irk-123456789-176194 |
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irk-123456789-1761942021-02-05T01:30:38Z Motion of vortices in ferromagnetic spin-1 BEC Sonin, E.B. Современные проблемы нелинейной физики магнетизма. II. Топологические солитоны The paper investigates dynamics of nonsingular vortices in a ferromagnetic spin-1 BEC, where spin and mass superfluidity coexist in the presence of uniaxial anisotropy (linear and quadratic Zeeman effect). The analysis is based on hydrodynamics following from the Gross–Pitaevskii theory. Cores of nonsingular vortices are skyrmions with charge, which is tuned by uniaxial anisotropy and can have any fractal value between 0 and 1. There are circulations of mass and spin currents around these vortices. The results are compared with the equation of vortex motion derived earlier in the Landau–Lifshitz–Gilbert theory for magnetic vortices in easy-plane ferromagnetic insulators. In the both cases the transverse gyrotropic force (analog of the Magnus force in super-fluid and classical hydrodynamics) is proportional to the charge of skyrmions in vortex cores. 2018 Article Motion of vortices in ferromagnetic spin-1 BEC / E.B. Sonin // Физика низких температур. — 2018. — Т. 44, № 7. — С. 838-846. — Бібліогр.: 26 назв. — англ. 0132-6414 PACS: 03.75.Lm, 67.85.Jk, 71.70.Ej http://dspace.nbuv.gov.ua/handle/123456789/176194 en Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
Современные проблемы нелинейной физики магнетизма. II. Топологические солитоны Современные проблемы нелинейной физики магнетизма. II. Топологические солитоны |
| spellingShingle |
Современные проблемы нелинейной физики магнетизма. II. Топологические солитоны Современные проблемы нелинейной физики магнетизма. II. Топологические солитоны Sonin, E.B. Motion of vortices in ferromagnetic spin-1 BEC Физика низких температур |
| description |
The paper investigates dynamics of nonsingular vortices in a ferromagnetic spin-1 BEC, where spin and mass superfluidity coexist in the presence of uniaxial anisotropy (linear and quadratic Zeeman effect). The analysis is based on hydrodynamics following from the Gross–Pitaevskii theory. Cores of nonsingular vortices are skyrmions with charge, which is tuned by uniaxial anisotropy and can have any fractal value between 0 and 1. There are circulations of mass and spin currents around these vortices. The results are compared with the equation of vortex motion derived earlier in the Landau–Lifshitz–Gilbert theory for magnetic vortices in easy-plane ferromagnetic insulators. In the both cases the transverse gyrotropic force (analog of the Magnus force in super-fluid and classical hydrodynamics) is proportional to the charge of skyrmions in vortex cores. |
| format |
Article |
| author |
Sonin, E.B. |
| author_facet |
Sonin, E.B. |
| author_sort |
Sonin, E.B. |
| title |
Motion of vortices in ferromagnetic spin-1 BEC |
| title_short |
Motion of vortices in ferromagnetic spin-1 BEC |
| title_full |
Motion of vortices in ferromagnetic spin-1 BEC |
| title_fullStr |
Motion of vortices in ferromagnetic spin-1 BEC |
| title_full_unstemmed |
Motion of vortices in ferromagnetic spin-1 BEC |
| title_sort |
motion of vortices in ferromagnetic spin-1 bec |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
2018 |
| topic_facet |
Современные проблемы нелинейной физики магнетизма. II. Топологические солитоны |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/176194 |
| citation_txt |
Motion of vortices in ferromagnetic spin-1 BEC / E.B. Sonin // Физика низких температур. — 2018. — Т. 44, № 7. — С. 838-846. — Бібліогр.: 26 назв. — англ. |
| series |
Физика низких температур |
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AT sonineb motionofvorticesinferromagneticspin1bec |
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2023-10-18T22:40:40Z |
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2023-10-18T22:40:40Z |
| _version_ |
1796156144416194560 |