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Title: Microscopic mechanism of low thermal conductivity in lead telluride

Journal Article · · Physical Review. B, Condensed Matter and Materials Physics
 [1];  [2];  [3];  [3];  [4];  [4];  [5];  [5]
  1. Univ. of Tokyo (Japan). Dept. of Mechanical Engineering
  2. Univ. of Tokyo (Japan). Dept. of Mechanical Engineering; Japan Science and Technology Agency (JST), Kawaguchi (Japan)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Scattering Science Division
  4. Polish Academy of Sciences (PAS), Warsaw (Poland). Inst. of Physics
  5. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Mechanical Engineering

The microscopic physics behind low-lattice thermal conductivity of single-crystal rock salt lead telluride (PbTe) is investigated here. Mode-dependent phonon (normal and umklapp) scattering rates and their impact on thermal conductivity were quantified by first-principles-based anharmonic lattice dynamics calculations that accurately reproduce thermal conductivity in a wide temperature range. The low thermal conductivity of PbTe is attributed to the scattering of longitudinal acoustic phonons by transverse optical phonons with large anharmonicity and small group velocity of the soft transverse acoustic phonons. This results in enhancing the relative contribution of optical phonons, which are usually minor heat carriers in bulk materials.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Solid-State Solar-Thermal Energy Conversion Center (S3TEC); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Univ. of Tokyo (Japan)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Japan Science and Technology Agency (JST)
Grant/Contract Number:
SC0001299; FG02-09ER46577
OSTI ID:
1067083
Alternate ID(s):
OSTI ID: 1098701
Journal Information:
Physical Review. B, Condensed Matter and Materials Physics, Vol. 85, Issue 15; ISSN 1098-0121
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 111 works
Citation information provided by
Web of Science

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Cited By (30)

Chalcogenide Thermoelectrics Empowered by an Unconventional Bonding Mechanism journal August 2019
Anisotropy of Selected Mechanical Properties of PbTe journal February 2019
Thermoelectrics: Material Candidates and Structures I – Chalcogenides and Silicon-Germanium Alloys book August 2018
A Theoretical Model of Thermoelectric Transport Properties for Electrons and Phonons journal December 2015
The origin of incipient ferroelectricity in lead telluride journal July 2016
Resonant bonding leads to low lattice thermal conductivity journal April 2014
Twisting phonons in complex crystals with quasi-one-dimensional substructures journal April 2015
Unraveling a novel ferroelectric GeSe phase and its transformation into a topological crystalline insulator under high pressure journal September 2018
Direct measurement of individual phonon lifetimes in the clathrate compound Ba7.81Ge40.67Au5.33 journal September 2017
Nanoscale heat transfer – from computation to experiment journal January 2013
Predicting alloy vibrational mode properties using lattice dynamics calculations, molecular dynamics simulations, and the virtual crystal approximation journal July 2013
Anisotropic lattice thermal conductivity in chiral tellurium from first principles journal December 2015
Research Update: Phonon engineering of nanocrystalline silicon thermoelectrics journal September 2016
Enhancement of average thermoelectric figure of merit by increasing the grain-size of Mg 3.2 Sb 1.5 Bi 0.49 Te 0.01 journal January 2018
Revisiting lattice thermal transport in PbTe: The crucial role of quartic anharmonicity journal August 2018
Phonon properties and thermal conductivity from first principles, lattice dynamics, and the Boltzmann transport equation journal January 2019
First-principles calculations of thermal, electrical, and thermoelectric transport properties of semiconductors journal March 2016
Anharmonic force constants extracted from first-principles molecular dynamics: applications to heat transfer simulations journal May 2014
Advances in the measurement and computation of thermal phonon transport properties journal January 2015
Effect of intrinsic defects on the thermal conductivity of PbTe from classical molecular dynamics simulations journal October 2019
Revisiting PbTe to identify how thermal conductivity is really limited journal May 2018
Anharmonicity in the High-Temperature C m c m Phase of SnSe: Soft Modes and Three-Phonon Interactions journal August 2016
Influence of mass contrast in alloy phonon scattering journal January 2014
Predicting alloy vibrational mode properties using lattice dynamics calculations, molecular dynamics simulations, and the virtual crystal approximation text January 2013
Chalcogenide Thermoelectrics Empowered by an Unconventional Bonding Mechanism text January 2019
Predicting alloy vibrational mode properties using lattice dynamics calculations, molecular dynamics simulations, and the virtual crystal approximation text January 2013
A first-principles approach to nonlinear lattice dynamics: Anomalous spectra in PbTe text January 2013
Thermal physics of the lead chalcogenides PbS, PbSe, and PbTe from first principles text January 2014
Distribution of phonon lifetime in Brillouin zone text January 2015
Influence of mass contrast in alloy phonon scattering text January 2015

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