Автор |
K C Sood |
Автор |
M K Roy |
Дата выпуска |
1993-01-18 |
dc.description |
Using the relaxation time approach, the authors present a new analysis of phonon conductivity which shows that at high temperature (T> theta <sub>D</sub>, the Debye temperature), the longitudinal phonons are the dominant heat carriers in germanium. The present result, which is a consequence of the effect of phonon dispersion on the Callaway integral for lattice thermal conductivity, is contrary to the general belief that transverse phonons carry heat at T> theta <sub>D</sub>. A qualitative justification has also been given for the three-phonon scattering parameters obtained. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Longitudinal phonons and high-temperature heat conduction in germanium |
Тип |
paper |
DOI |
10.1088/0953-8984/5/3/006 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
5 |
Первая страница |
301 |
Последняя страница |
312 |
Аффилиация |
K C Sood; Dept. of Phys., Banaras Hindu Univ., Varanasi, India |
Аффилиация |
M K Roy; Dept. of Phys., Banaras Hindu Univ., Varanasi, India |
Выпуск |
3 |