Oscillations of Magnetized Grains in Complex Plasmas
Vertical vibrations of a single magnetized charged dust grain and a one-dimensional string of magnetized particles in a gas-discharge plasma immersed in an external almost vertical magnetic field are studied. It is shown that the magnetic force associated with gradients of the magnetic field results...
Збережено в:
| Дата: | 2013 |
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| Автори: | , |
| Формат: | Стаття |
| Мова: | rus |
| Опубліковано: |
Видавничий дім «Академперіодика»
2013
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| Онлайн доступ: | http://rpra-journal.org.ua/index.php/ra/article/view/732 |
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| Назва журналу: | Radio physics and radio astronomy |
Репозитарії
Radio physics and radio astronomy| Резюме: | Vertical vibrations of a single magnetized charged dust grain and a one-dimensional string of magnetized particles in a gas-discharge plasma immersed in an external almost vertical magnetic field are studied. It is shown that the magnetic force associated with gradients of the magnetic field results in a novel type of oscillations of a single particle. Such vibrations can be either stable or unstable, depending on the magnetic field distribution inside the gas-discharge chamber. In a one-dimensional particle string, the magnetic force causes a new low-frequency oscillatory mode, which is characterized by dispersion similar to the optical phonon branch in the long-wavelength range. The possibilities of using the vertical vibrations of magnetized grains for determining complex plasma parameters are discussed. |
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