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Controlling thermal transport in insulators and semiconductors is crucial for many technological fields such as thermoelectrics and thermal insulation, for which a low thermal conductivity ($\kappa$) is desirable. A major obstacle for realizing low $
Externí odkaz:
http://arxiv.org/abs/2308.10836
The primitive Wigner-Seitz cell and corresponding first Brillouin zone (FBZ) are typically used in calculations of lattice vibrational and transport properties as they contain the smallest number of degrees of freedom and thus have the cheapest compu
Externí odkaz:
http://arxiv.org/abs/2303.03161
Understanding thermodynamics in liquids at the atomic level is challenging because of strong atomic interactions and lack of symmetry. Recent prior theoretical works have focused on describing heat capacity of liquids in terms of phonon-like excitati
Externí odkaz:
http://arxiv.org/abs/2210.06218
Publikováno v:
Phys. Rev. B 105, 134202 (2022)
Lowest-order quantum perturbation theory (Fermi's golden rule) for phonon-disorder scattering has been used to predict thermal conductivities in several semiconducting alloys with surprising success given its underlying hypothesis of weak and dilute
Externí odkaz:
http://arxiv.org/abs/2205.01207
Autor:
Gupta, Divishth, Pallikkara Chandrasekharan, Sreejith, Thebaud, Simon, Cornet, Charles, Pedesseau, Laurent
Publikováno v:
In Applied Surface Science 30 December 2024 678
Publikováno v:
Phys. Rev. B 100, 195202 (2019)
Transition metal oxides are considered promising thermoelectric materials for harvesting high-temperature waste heat due to their stability, abundance and low toxicity. Despite their typically strong ionic character, they can exhibit surprisingly hig
Externí odkaz:
http://arxiv.org/abs/1909.08554
In the search for more efficient thermoelectric materials, scientists have placed high hopes in the possibility of enhancing the power factor using resonant states. In this study, we investigate theoretically the effects of randomly distributed reson
Externí odkaz:
http://arxiv.org/abs/1905.08172
A particularly promising pathway to enhance the efficiency of thermoelectric materials lies in the use of resonant states, as suggested by experimentalists and theorists alike. In this paper, we go over the mechanisms used in the literature to explai
Externí odkaz:
http://arxiv.org/abs/1707.05611
Akademický článek
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Autor:
Thébaud, Simon
Ces dernières décennies, l'urgence croissante de la crise énergétique et la prise de conscience qu'une grande partie de l'énergie utilisée dans le monde est dissipée sous forme de chaleur ont provoqué un engouement pour le développement de m
Externí odkaz:
http://www.theses.fr/2019LYSE1168/document