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...
Збережено в:
| Дата: | 2014 |
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| Автор: | |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
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
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | 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. |
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