Dynamics of current induced magnetic superstructures in exchange-spring devices
Thermoelectric manipulation of the magnetization of a magnetic layered stack in which a low-Curie temperature magnet is sandwiched between two strong magnets (exchange spring device) is considered. Controllable Joule heating produced by a current flowing in the plane of the magnetic stack (CIP con...
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| Дата: | 2012 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2012
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| Назва видання: | Физика низких температур |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/117264 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Dynamics of current induced magnetic superstructures in exchange-spring devices / A.M. Kadigrobov, R.I. Shekhter, M. Jonson // Физика низких температур. — 2012. — Т. 38, № 7. — С. 793-800. — Бібліогр.: 32 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
irk-123456789-117264 |
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irk-123456789-1172642017-05-22T03:03:09Z Dynamics of current induced magnetic superstructures in exchange-spring devices Kadigrobov, A.M. Shekhter, R.I. Jonson, M. Магнетизм Thermoelectric manipulation of the magnetization of a magnetic layered stack in which a low-Curie temperature magnet is sandwiched between two strong magnets (exchange spring device) is considered. Controllable Joule heating produced by a current flowing in the plane of the magnetic stack (CIP configuration) induces a spatial magnetic and thermal structure along the current flow — a magnetothermal-electric domain (soliton). We show that such a structure can experience oscillatory in time dynamics if the magnetic stack is incorporated into an electric circuit in series with an inductor. The excitation of these magnetothermionic oscillations follow the scenario either of “soft” of “hard” instability: in the latter case oscillations arise if the initial perturbation is large enough. The frequency of the temporal oscillations is of the order of 10⁵–10⁷ s⁻¹ for current densities j ~ 10⁶ –10⁷ A/cm² . 2012 Article Dynamics of current induced magnetic superstructures in exchange-spring devices / A.M. Kadigrobov, R.I. Shekhter, M. Jonson // Физика низких температур. — 2012. — Т. 38, № 7. — С. 793-800. — Бібліогр.: 32 назв. — англ. 0132-6414 PACS: 75.45.+j, 75.70.–i http://dspace.nbuv.gov.ua/handle/123456789/117264 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 |
Магнетизм Магнетизм |
| spellingShingle |
Магнетизм Магнетизм Kadigrobov, A.M. Shekhter, R.I. Jonson, M. Dynamics of current induced magnetic superstructures in exchange-spring devices Физика низких температур |
| description |
Thermoelectric manipulation of the magnetization of a magnetic layered stack in which a low-Curie temperature
magnet is sandwiched between two strong magnets (exchange spring device) is considered. Controllable
Joule heating produced by a current flowing in the plane of the magnetic stack (CIP configuration) induces
a spatial magnetic and thermal structure along the current flow — a magnetothermal-electric domain (soliton).
We show that such a structure can experience oscillatory in time dynamics if the magnetic stack is incorporated
into an electric circuit in series with an inductor. The excitation of these magnetothermionic oscillations follow
the scenario either of “soft” of “hard” instability: in the latter case oscillations arise if the initial perturbation is
large enough. The frequency of the temporal oscillations is of the order of 10⁵–10⁷
s⁻¹ for current densities
j ~ 10⁶
–10⁷
A/cm²
. |
| format |
Article |
| author |
Kadigrobov, A.M. Shekhter, R.I. Jonson, M. |
| author_facet |
Kadigrobov, A.M. Shekhter, R.I. Jonson, M. |
| author_sort |
Kadigrobov, A.M. |
| title |
Dynamics of current induced magnetic superstructures in exchange-spring devices |
| title_short |
Dynamics of current induced magnetic superstructures in exchange-spring devices |
| title_full |
Dynamics of current induced magnetic superstructures in exchange-spring devices |
| title_fullStr |
Dynamics of current induced magnetic superstructures in exchange-spring devices |
| title_full_unstemmed |
Dynamics of current induced magnetic superstructures in exchange-spring devices |
| title_sort |
dynamics of current induced magnetic superstructures in exchange-spring devices |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
2012 |
| topic_facet |
Магнетизм |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/117264 |
| citation_txt |
Dynamics of current induced magnetic superstructures
in exchange-spring devices / A.M. Kadigrobov, R.I. Shekhter, M. Jonson // Физика низких температур. — 2012. — Т. 38, № 7. — С. 793-800. — Бібліогр.: 32 назв. — англ. |
| series |
Физика низких температур |
| work_keys_str_mv |
AT kadigrobovam dynamicsofcurrentinducedmagneticsuperstructuresinexchangespringdevices AT shekhterri dynamicsofcurrentinducedmagneticsuperstructuresinexchangespringdevices AT jonsonm dynamicsofcurrentinducedmagneticsuperstructuresinexchangespringdevices |
| first_indexed |
2023-10-18T20:29:24Z |
| last_indexed |
2023-10-18T20:29:24Z |
| _version_ |
1796150335083905024 |