scholarly journals Effect of electron-phonon interaction on lattice thermal conductivity of SiGe alloys

2019 ◽  
Vol 115 (2) ◽  
pp. 023903 ◽  
Author(s):  
Qian Xu ◽  
Jiawei Zhou ◽  
Te-Huan Liu ◽  
Gang Chen
Keyword(s):  
Thermal Conductivity ◽  
Lattice Thermal Conductivity ◽  
Phonon Interaction ◽  
Electron Phonon Interaction

The lattice thermal conductivity of silver alloys between 0.3 and 4°K

1965 ◽  
Vol 257 (1083) ◽  
pp. 385-407 ◽  
Keyword(s):  
Thermal Conductivity ◽  
Lattice Thermal Conductivity ◽  
Phonon Scattering ◽  
Copper Alloys ◽  
Mean Free Path ◽  
Copper Sample ◽  
Phonon Interaction ◽  
Temperature Range ◽  
Electron Phonon Interaction ◽  
Electrical Resistivities

The thermal and electrical conductivities of silver and copper alloys with high electrical resistivities were studied in the temperature range from 0.3 to 4 °K. The lattice thermal conductivity results were interpreted in terms of Pippard’s semi-classical theory of the electron-phonon interaction and good qualitative agreement between this theory and the measurements was obtained for the temperature range from 1 to 4 °K. Below 1 °K the thermal conductivity of most samples decreased much more rapidly than one would have expected if the phonon mean free path were limited by the electron-phonon interaction only. Other phonon scattering mechanisms were therefore postulated and the effects of phonon scattering from dislocations was studied both theoretically and experimentally. The increase in thermal resistance below 1 °K of most alloys was more rapid than the increase obtained theoretically for phonon-dislocation and phonon-boundary scattering. The thermal conductivity of a copper sample with a resistance ratio of about 85 was found to be anomalous below 1 °K as well, suggesting that both the phonons and the conduction electrons could contribute to the effect in the alloys.

Influence of Electron–Phonon Interaction on the Lattice Thermal Conductivity in Single‐Crystal Si

2020 ◽  
Vol 532 (11) ◽  
pp. 1900435
Author(s):  
Teng Fang ◽  
Jiazhan Xin ◽  
Chenguang Fu ◽  
Dongsheng Li ◽  
Xinbing Zhao ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Single Crystal ◽  
Lattice Thermal Conductivity ◽  
Phonon Interaction ◽  
Electron Phonon Interaction

The Lattice Thermal Conductivity of Alloys

1960 ◽  
Vol 13 (2) ◽  
pp. 247 ◽  
Author(s):  
WRG Kemp ◽  
PG Klemens
Keyword(s):  
Thermal Conductivity ◽  
Liquid Helium ◽  
Electron Density ◽  
Solute Atom ◽  
Lattice Thermal Conductivity ◽  
Alloy Composition ◽  
Phonon Interaction ◽  
Electron Phonon Interaction ◽  
Density Of Dislocations ◽  
Lattice Waves

The lattice thermal conductivity of alloys at liquid helium temperatures yields information about the nature of the electron-phonon interaction, and about the density of dislocations. It appears that in copper, silver, and gold the electrons interact with transverse as well as with longitudinal lattice waves. The lattice conductivity also varies with alloy composition; it is not clear whether this variation should be ascribed to changes in the electron density or to the presence of dislocations, locked into stable configurations by the solute atom. If the latter view is adopted, the density of dislocations in annealed alloys is typically of the order of lOlD to 1011 lines/em".

scholarly journals Strong effect of electron-phonon interaction on the lattice thermal conductivity in 3C-SiC

2017 ◽  
Vol 1 (3) ◽  
Author(s):  
Tianshi Wang ◽  
Zhigang Gui ◽  
Anderson Janotti ◽  
Chaoying Ni ◽  
Prashant Karandikar
Keyword(s):  
Thermal Conductivity ◽  
Lattice Thermal Conductivity ◽  
Phonon Interaction ◽  
Electron Phonon Interaction

Influence of electron-phonon interaction on the lattice thermal conductivity ofCo1−xNixSb3

2002 ◽  
Vol 65 (9) ◽  
Author(s):  
J. Yang ◽  
D. T. Morelli ◽  
G. P. Meisner ◽  
W. Chen ◽  
J. S. Dyck ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Lattice Thermal Conductivity ◽  
Phonon Interaction ◽  
Electron Phonon Interaction
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