Three-phonon relaxation in isotropic and anisotropic phonon systems of liquid helium at different pressures
Starting from the kinetic equation for phonons in superfluid helium, expressions for the rates of
 three-phonon scattering in isotropic and anisotropic phonon systems were obtained for different
 pressures. These expressions are valid in the whole range of energies where three-phonon...
Збережено в:
| Опубліковано в: | Физика низких температур |
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| Дата: | 2005 |
| ISSN: | 0132-6414 |
| Автори: | , , , , |
| Формат: | Стаття |
| Мова: | Англійська |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2005
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| Теми: | |
| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/121479 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Three-phonon relaxation in isotropic and anisotropic phonon systems of liquid helium at different pressures / I.N. Adamenko, Yu.A. Kitsenko, K.E. Nemchenko, V.A. Slipko, A.F.G. Wyatt // Физика низких температур. — 2005. — Т. 31, № 6. — С. 607-619. — Бібліогр.: 29 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | Starting from the kinetic equation for phonons in superfluid helium, expressions for the rates of
three-phonon scattering in isotropic and anisotropic phonon systems were obtained for different
pressures. These expressions are valid in the whole range of energies where three-phonon processes
are allowed. Limiting cases were analysed and compared with the results of previous theoretical investigations.
The obtained pressure and angular dependence of three phonon scattering rate allows
one to explaine of the experimental data on interaction of phonon pulses.
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| ISSN: | 0132-6414 |