scholarly journals Phonons and electron-phonon scattering in carbon nanotubes

2002 ◽  
Vol 65 (23) ◽  
Author(s):  
Hidekatsu Suzuura ◽  
Tsuneya Ando
Keyword(s):  
Carbon Nanotubes ◽  
Phonon Scattering ◽  
Electron Phonon Scattering

Electron–Phonon Scattering Is Much Weaker in Carbon Nanotubes than in Graphene Nanoribbons

2019 ◽  
Vol 10 (22) ◽  
pp. 7179-7187 ◽  
Author(s):  
Guoqing Zhou ◽  
Chao Cen ◽  
Shuyi Wang ◽  
Mingsen Deng ◽  
Oleg V. Prezhdo
Keyword(s):  
Carbon Nanotubes ◽  
Phonon Scattering ◽  
Graphene Nanoribbons ◽  
Electron Phonon Scattering

Electron-phonon scattering and ballistic behavior in semiconducting carbon nanotubes

2005 ◽  
Vol 87 (17) ◽  
pp. 172112 ◽  
Author(s):  
H. Cazin d’Honincthun ◽  
S. Galdin-Retailleau ◽  
J. Sée ◽  
P. Dollfus
Keyword(s):  
Carbon Nanotubes ◽  
Phonon Scattering ◽  
Electron Phonon Scattering

CARBON NANOTUBES AS A PERFECTLY CONDUCTING CYLINDER

2003 ◽  
Vol 13 (03) ◽  
pp. 849-871 ◽  
Author(s):  
TSUNEYA ANDO
Keyword(s):  
Carbon Nanotubes ◽  
Transport Properties ◽  
Phonon Scattering ◽  
Tight Binding ◽  
Point Of View ◽  
Potential Range ◽  
Theoretical Point ◽  
Binding Model ◽  
Long Wavelength ◽  
Electron Phonon Scattering

A brief review is given on electronic and transport properties of carbon nanotubes mainly from a theoretical point of view. The topics include a description of electronic states in a tight-binding model and in an effective-mass or k · p scheme. Transport properties are discussed including absence of backward scattering except for scatterers with a potential range smaller than the lattice constant, its extension to multi-bands cases, and long-wavelength phonons and electron-phonon scattering.

scholarly journals Electron−Phonon Scattering in Metallic Single-Walled Carbon Nanotubes

Nano Letters ◽  
2004 ◽  
Vol 4 (3) ◽  
pp. 517-520 ◽  
Author(s):  
Ji-Yong Park ◽  
Sami Rosenblatt ◽  
Yuval Yaish ◽  
Vera Sazonova ◽  
Hande Üstünel ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Phonon Scattering ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes ◽  
Electron Phonon Scattering

TEMPERATURE DEPENDENCE BEHAVIOR OF ELECTRICAL RESISTIVITY IN NOBLE METALS AT LOW TEMPERATURES

2014 ◽  
Vol 5 (3) ◽  
pp. 982-992 ◽  
Author(s):  
M AL-Jalali
Keyword(s):  
Experimental Data ◽  
Electrical Resistivity ◽  
Temperature Dependence ◽  
Concentration Dependence ◽  
Low Temperatures ◽  
Noble Metals ◽  
Phonon Scattering ◽  
Theoretical Models ◽  
Residual Resistivity ◽  
Electron Phonon Scattering

Resistivity temperature – dependence and residual resistivity concentration-dependence in pure noble metals(Cu, Ag, Au) have been studied at low temperatures. Dominations of electron – dislocation and impurity, electron-electron, and electron-phonon scattering were analyzed, contribution of these mechanisms to resistivity were discussed, taking into consideration existing theoretical models and available experimental data, where some new results and ideas were investigated.

scholarly journals When band convergence is not beneficial for thermoelectrics

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Junsoo Park ◽  
Maxwell Dylla ◽  
Yi Xia ◽  
Max Wood ◽  
G. Jeffrey Snyder ◽  
...  
Keyword(s):  
Charge Carrier ◽  
First Principles ◽  
Design Principle ◽  
Phonon Scattering ◽  
Charge Carrier Concentration ◽  
Deformation Potential ◽  
Interband Scattering ◽  
Improved Performance ◽  
Full Heusler ◽  
Electron Phonon Scattering

AbstractBand convergence is considered a clear benefit to thermoelectric performance because it increases the charge carrier concentration for a given Fermi level, which typically enhances charge conductivity while preserving the Seebeck coefficient. However, this advantage hinges on the assumption that interband scattering of carriers is weak or insignificant. With first-principles treatment of electron-phonon scattering in the CaMg2Sb2-CaZn2Sb2 Zintl system and full Heusler Sr2SbAu, we demonstrate that the benefit of band convergence can be intrinsically negated by interband scattering depending on the manner in which bands converge. In the Zintl alloy, band convergence does not improve weighted mobility or the density-of-states effective mass. We trace the underlying reason to the fact that the bands converge at a one k-point, which induces strong interband scattering of both the deformation-potential and the polar-optical kinds. The case contrasts with band convergence at distant k-points (as in the full Heusler), which better preserves the single-band scattering behavior thereby successfully leading to improved performance. Therefore, we suggest that band convergence as thermoelectric design principle is best suited to cases in which it occurs at distant k-points.

Sign in / Sign up

Export Citation Format

Share Document