Comment on "Anomalous Electron-Phonon Transport Properties of Impure Metals"

1971 ◽  
Vol 4 (12) ◽  
pp. 4641-4642
Author(s):  
Henrik Smith
Author(s):  
Haohao Sheng ◽  
Haoxiang Long ◽  
Guanzhen Zou ◽  
Dongmei Bai ◽  
Junting Zhang ◽  
...  

2018 ◽  
Vol 20 (12) ◽  
pp. 123014 ◽  
Author(s):  
Cong Wang ◽  
Guangqian Ding ◽  
Xuming Wu ◽  
Shasha Wei ◽  
Guoying Gao

Author(s):  
Havva Bogaz Ozisik ◽  
Engin Deligoz ◽  
Haci Ozisik ◽  
Engin Ateser

2008 ◽  
Author(s):  
E. S. Landry ◽  
A. J. H. McGaughey

Si/Si1−xGex superlattices are promising candidates for thermoelectric energy conversion applications [1, 2], as the phonon transport through them can be inhibited while maintaining desirable electrical transport properties. No comprehensive experimental study has been performed to map the thermal conductivity design space accessible by Si/Ge nanocomposites. By using atomistic modeling tools, interesting areas of the design space can be identified and then further explored experimentally.


2019 ◽  
Vol 33 (31) ◽  
pp. 1950383
Author(s):  
Bengang Bao ◽  
Gao-Hua Liao ◽  
Jun He ◽  
Chang-Ning Pan

Ballistic thermal transport properties in graphene nanoribbon modulated with strain are investigated by non-equilibrium Green’s function approach. The results show that the strain can suppress the phonon transport of flexural phonon mode (FPM) and enhance the phonon transport of in-plane mode (IPM) in low-frequency region, leading to the reduction in the thermal conductance of FPM and the enhancement in the thermal conductance of IPM. The total thermal conductance is decreased by strain as the reduction in the thermal conductance of FPM overcomes the enhancement in the thermal conductance of IPM.


Materials ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6279
Author(s):  
Kai Guo ◽  
Fan Yang ◽  
Tianyao Weng ◽  
Jianguo Chen ◽  
Jiye Zhang ◽  
...  

Donor-doped strontium titanate (SrTiO3) is one of the most promising n-type oxide thermoelectric materials. Routine doping of La at Sr site can change the charge scattering mechanism, and meanwhile can significantly increase the power factor in the temperature range of 423–773 K. In addition, the introduction of Sc partially substitutes Sr, thus further increasing the electron concentration and optimizing the electrical transport properties. Moreover, the excess Sc in the form of Sc2O3 composite suppresses multifrequency phonon transport, leading to low thermal conductivity of κ = 3.78 W·m−1·K−1 at 773 K for sample Sr0.88La0.06Sc0.06TiO3 with the highest doping content. Thus, the thermoelectric performance of SrTiO3 can be significantly enhanced by synergistic optimization of electrical transport and thermal transport properties via cation doping and composite engineering.


2019 ◽  
Vol 32 (13) ◽  
pp. 135901
Author(s):  
Zheyong Fan ◽  
Yanzhou Wang ◽  
Xiaokun Gu ◽  
Ping Qian ◽  
Yanjing Su ◽  
...  

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