Thermal conductivity of half-Heusler compounds from first-principles calculations
Abstract
We demonstrate successful application of first-principles-based thermal conductivity calculation on half-Heusler compounds that are promising, environmentally friendly thermoelectric materials. Taking the case of a p-type half-Heusler structure, the harmonic and anharmonic interatomic force constants were obtained from a set of force-displacement data calculated by the density functional theory. Thermal conductivity was obtained by two different methods: (1) Boltzmann-Peierls formula with phonon relaxation times calculated by either Fermi's golden rule of three-phonon scattering processes or spectral analysis of molecular dynamics phase space trajectories and (2) Green-Kubo formula for heat current obtained by equilibrium molecular dynamics simulations. The calculated temperature dependence of thermal conductivity is in reasonable agreement with experiments. The method was extended to alloy crystals assuming the transferability of interatomic force constants. By having access to accurate phonon-dependent transport properties, the contribution from an arbitral subset of phonon modes can be quantified. Furthermore, this helps understanding the influence of nanostructures on thermal conductivity.
- Authors:
-
- The Univ. of Tokyo, Tokyo (Japan); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Publication Date:
- Research Org.:
- Energy Frontier Research Centers (EFRC) (United States). Solid-State Solar-Thermal Energy Conversion Center (S3TEC); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1386851
- Alternate Identifier(s):
- OSTI ID: 1100846
- Grant/Contract Number:
- SC0001299; FG02-09ER46577
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review. B, Condensed Matter and Materials Physics
- Additional Journal Information:
- Journal Volume: 84; Journal Issue: 10; Related Information: S3TEC partners with Massachusetts Institute of Technology (lead); Boston College; Oak Ridge National Laboratory; Rensselaer Polytechnic Institute; Journal ID: ISSN 1098-0121
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; solar (photovoltaic); solar (thermal); solid state lighting; phonons; thermal conductivity; thermoelectric; defects; mechanical behavior; charge transport; spin dynamics; materials and chemistry by design; optics; synthesis (novel materials); synthesis (self-assembly); synthesis (scalable processing)
Citation Formats
Shiomi, Junichiro, Esfarjani, Keivan, and Chen, Gang. Thermal conductivity of half-Heusler compounds from first-principles calculations. United States: N. p., 2011.
Web. doi:10.1103/PhysRevB.84.104302.
Shiomi, Junichiro, Esfarjani, Keivan, & Chen, Gang. Thermal conductivity of half-Heusler compounds from first-principles calculations. United States. https://doi.org/10.1103/PhysRevB.84.104302
Shiomi, Junichiro, Esfarjani, Keivan, and Chen, Gang. Wed .
"Thermal conductivity of half-Heusler compounds from first-principles calculations". United States. https://doi.org/10.1103/PhysRevB.84.104302. https://www.osti.gov/servlets/purl/1386851.
@article{osti_1386851,
title = {Thermal conductivity of half-Heusler compounds from first-principles calculations},
author = {Shiomi, Junichiro and Esfarjani, Keivan and Chen, Gang},
abstractNote = {We demonstrate successful application of first-principles-based thermal conductivity calculation on half-Heusler compounds that are promising, environmentally friendly thermoelectric materials. Taking the case of a p-type half-Heusler structure, the harmonic and anharmonic interatomic force constants were obtained from a set of force-displacement data calculated by the density functional theory. Thermal conductivity was obtained by two different methods: (1) Boltzmann-Peierls formula with phonon relaxation times calculated by either Fermi's golden rule of three-phonon scattering processes or spectral analysis of molecular dynamics phase space trajectories and (2) Green-Kubo formula for heat current obtained by equilibrium molecular dynamics simulations. The calculated temperature dependence of thermal conductivity is in reasonable agreement with experiments. The method was extended to alloy crystals assuming the transferability of interatomic force constants. By having access to accurate phonon-dependent transport properties, the contribution from an arbitral subset of phonon modes can be quantified. Furthermore, this helps understanding the influence of nanostructures on thermal conductivity.},
doi = {10.1103/PhysRevB.84.104302},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 10,
volume = 84,
place = {United States},
year = {Wed Sep 28 00:00:00 EDT 2011},
month = {Wed Sep 28 00:00:00 EDT 2011}
}
Web of Science
Figures / Tables:
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