Longitudinal evolution of magnetization of ferromagnets following ultrafast demagnetization: role of finite size and shape of demagnetized region
A dependence of a relaxation rate on the shape of the demagnetized region for a longitudinal evolution of total magnetization to its equilibrium value following the ultrafast demagnetization is demonstrated. This shapedependence is caused by a motion of the wave front inside the demagnetized region...
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| Дата: | 2014 |
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| Автор: | |
| Формат: | Стаття |
| Мова: | English |
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Інститут фізики конденсованих систем НАН України
2014
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/153462 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Longitudinal evolution of magnetization of ferromagnets following ultrafast demagnetization: role of finite size and shape of demagnetized region / I.A. Yastremsky // Condensed Matter Physics. — 2014. — Т. 17, № 4. — С. 44701: 1–6. — Бібліогр.: 23 назв. — англ. |
Репозитарії
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irk-123456789-1534622019-06-15T01:25:58Z Longitudinal evolution of magnetization of ferromagnets following ultrafast demagnetization: role of finite size and shape of demagnetized region Yastremsky, I.A. A dependence of a relaxation rate on the shape of the demagnetized region for a longitudinal evolution of total magnetization to its equilibrium value following the ultrafast demagnetization is demonstrated. This shapedependence is caused by a motion of the wave front inside the demagnetized region. The contribution of the wave front for spherically symmetric shape of the demagnetized region is up to 3 times and for cylindrically symmetric shape up to 2 times stronger than for one dimensional demagnetized region. This effect can be observed after the demagnetization by a tightly focused femtosecond laser pulse. Продемонстровано залежнiсть швидкостi релаксацiї поздовжньої еволюцiї повної намагнiченостi феромагнетика пiсля надшвидкого розмагнiчування вiд форми розмагнiченої областi. Ця залежнiсть обумовлена рухом хвильового фронту вглиб розмагнiченої областi. Внесок хвильового фронту для сферичносиметричної форми розмагнiченої областi до 3 раз та для цилiндрично-симетричної областi до 2 раз бiльший, нiж для одновимiрного випадку. Цей ефект може спостерiгатись пiсля розмагнiчування сильно сфокусованим лазерним iмпульсом. 2014 Article Longitudinal evolution of magnetization of ferromagnets following ultrafast demagnetization: role of finite size and shape of demagnetized region / I.A. Yastremsky // Condensed Matter Physics. — 2014. — Т. 17, № 4. — С. 44701: 1–6. — Бібліогр.: 23 назв. — англ. 1607-324X PACS: 75.78.Jp, 78.47.J DOI:10.5488/CMP.17.44701 arXiv:1501.02895 http://dspace.nbuv.gov.ua/handle/123456789/153462 en Condensed Matter Physics Інститут фізики конденсованих систем НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| description |
A dependence of a relaxation rate on the shape of the demagnetized region for a longitudinal evolution of total
magnetization to its equilibrium value following the ultrafast demagnetization is demonstrated. This shapedependence is caused by a motion of the wave front inside the demagnetized region. The contribution of the
wave front for spherically symmetric shape of the demagnetized region is up to 3 times and for cylindrically
symmetric shape up to 2 times stronger than for one dimensional demagnetized region. This effect can be
observed after the demagnetization by a tightly focused femtosecond laser pulse. |
| format |
Article |
| author |
Yastremsky, I.A. |
| spellingShingle |
Yastremsky, I.A. Longitudinal evolution of magnetization of ferromagnets following ultrafast demagnetization: role of finite size and shape of demagnetized region Condensed Matter Physics |
| author_facet |
Yastremsky, I.A. |
| author_sort |
Yastremsky, I.A. |
| title |
Longitudinal evolution of magnetization of ferromagnets following ultrafast demagnetization: role of finite size and shape of demagnetized region |
| title_short |
Longitudinal evolution of magnetization of ferromagnets following ultrafast demagnetization: role of finite size and shape of demagnetized region |
| title_full |
Longitudinal evolution of magnetization of ferromagnets following ultrafast demagnetization: role of finite size and shape of demagnetized region |
| title_fullStr |
Longitudinal evolution of magnetization of ferromagnets following ultrafast demagnetization: role of finite size and shape of demagnetized region |
| title_full_unstemmed |
Longitudinal evolution of magnetization of ferromagnets following ultrafast demagnetization: role of finite size and shape of demagnetized region |
| title_sort |
longitudinal evolution of magnetization of ferromagnets following ultrafast demagnetization: role of finite size and shape of demagnetized region |
| publisher |
Інститут фізики конденсованих систем НАН України |
| publishDate |
2014 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/153462 |
| citation_txt |
Longitudinal evolution of magnetization of ferromagnets following ultrafast demagnetization: role of finite size and shape of demagnetized region / I.A. Yastremsky // Condensed Matter Physics. — 2014. — Т. 17, № 4. — С. 44701: 1–6. — Бібліогр.: 23 назв. — англ. |
| series |
Condensed Matter Physics |
| work_keys_str_mv |
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2023-05-20T17:41:18Z |
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2023-05-20T17:41:18Z |
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1796153863479230464 |