Thermoelectric transport and phonon drag in Weyl semimetal monochalcogenides

2021 ◽  
Vol 104 (11) ◽  
Author(s):  
Xitong Xu ◽  
Yiyuan Liu ◽  
Gabriel Seyfarth ◽  
Alexandre Pourret ◽  
Wenlong Ma ◽  
...  
Keyword(s):  
Phonon Drag ◽  
Thermoelectric Transport ◽  
Weyl Semimetal

scholarly journals Thermoelectric Transport in a Three-Dimensional HgTe Topological Insulator

Nanomaterials ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 3364
Author(s):  
Gennady M. Gusev ◽  
Ze D. Kvon ◽  
Alexander D. Levin ◽  
Nikolay N. Mikhailov
Keyword(s):  
Seebeck Coefficient ◽  
Topological Insulator ◽  
Fermi Energy ◽  
Three Dimensional ◽  
Phonon Drag ◽  
Thermoelectric Transport ◽  
Bulk Band ◽  
Theory And Experiment

The thermoelectric response of 80 nm-thick strained HgTe films of a three-dimensional topological insulator (3D TI) has been studied experimentally. An ambipolar thermopower is observed where the Fermi energy moves from conducting to the valence bulk band. The comparison between theory and experiment shows that the thermopower is mostly due to the phonon drag contribution. In the region where the 2D Dirac electrons coexist with bulk hole states, the Seebeck coefficient is modified due to 2D electron–3D hole scattering.

Der Einfluß des Phonon -Mitzieheffektes auf die thermoelektrischen Koeffizienten in Metallen / Influence of Phonon Drag on the Thermoelectric Coefficients in Metals

1977 ◽  
Vol 32 (8) ◽  
pp. 813-817
Author(s):  
D. Roloff ◽  
G. Simon
Keyword(s):  
Transport Coefficients ◽  
Coupled System ◽  
System Of Equations ◽  
Boltzmann Transport ◽  
Phonon Drag ◽  
Phonon Interaction ◽  
Full System ◽  
Thermoelectric Transport ◽  
Electron Phonon Interaction ◽  
Simplifying Assumptions

Abstract The system of coupled Boltzmann transport equations for electrons and phonons in a metal is considered in the absence of a magnetic field. Usually these equations are decoupled by “Bloch′s assumption”, that is the phonon gas is considered to stay in equilibrium with respect to the trans­ port equation for the electrons. It is shown that the coupled system of equations has finite solutions only if some other relaxation process than the electron-phonon interaction is present, for instance the phonon-phonon-interaction. With some simplifying assumptions the full system of equations is solved for high temperatures. The contributions of the phonon-drag to the thermoelectric transport coefficients are derived and discussed.

scholarly journals Electron and phonon drag in thermoelectric transport through coherent molecular conductors

2016 ◽  
Vol 93 (20) ◽  
Author(s):  
Jing-Tao Lü ◽  
Jian-Sheng Wang ◽  
Per Hedegård ◽  
Mads Brandbyge
Keyword(s):  
Phonon Drag ◽  
Molecular Conductors ◽  
Thermoelectric Transport

Thermoelectric Transport Properties of n-Type Tin Sulfide

2019 ◽  
Author(s):  
Xuegao Hu ◽  
Wenke He ◽  
Dongyang Wang ◽  
Zhiwei Huang ◽  
Li-Dong Zhao
Keyword(s):  
Transport Properties ◽  
Tin Sulfide ◽  
Thermoelectric Transport ◽  
Thermoelectric Transport Properties

scholarly journals Superconductivity in Weyl semimetal candidate MoTe2

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Yanpeng Qi ◽  
Pavel G. Naumov ◽  
Mazhar N. Ali ◽  
Catherine R. Rajamathi ◽  
Walter Schnelle ◽  
...  
Keyword(s):  
Weyl Semimetal

scholarly journals Electron-phonon coupling in the magnetic Weyl semimetal ZrCo2Sn

2021 ◽  
Vol 103 (2) ◽  
Author(s):  
I.Yu. Sklyadneva ◽  
R. Heid ◽  
P. M. Echenique ◽  
E. V. Chulkov
Keyword(s):  
Phonon Coupling ◽  
Weyl Semimetal ◽  
Electron Phonon Coupling

scholarly journals Correlated Magnetic Weyl Semimetal State in Strained Pr 2 Ir 2 O 7

2021 ◽  
pp. 2008528
Author(s):  
Yangyang Li ◽  
Taekoo Oh ◽  
Jaeseok Son ◽  
Jeongkeun Song ◽  
Mi Kyung Kim ◽  
...  
Keyword(s):  
Weyl Semimetal

Anisotropic magnetoelastic response in the magnetic Weyl semimetal Co3Sn2S2

2021 ◽  
Vol 64 (5) ◽  
Author(s):  
Chang Liu ◽  
ChangJiang Yi ◽  
XingYu Wang ◽  
JianLei Shen ◽  
Tao Xie ◽  
...  
Keyword(s):  
Weyl Semimetal
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