Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Quasiharmonic calculations of thermodynamic properties for La3-xTe4 system

Journal Article · · Computational Materials Science
We report an extensive first-principles quasiharmonic phonon calculation was carried out for the thermoelectric material La3-xTe4 at the compositions of x = 0.0, 0.25 and 0.33, focusing at the La site vacancy effects on the thermodynamic properties. The calculated quantities include the 0 K static total energy curves and electronic band structures as well as density-of-states, the phonon density-of-states, together with the linear thermal expansion coefficients, the entropies, the enthalpies, the heat capacities, the bulk moduli, and the Debye temperature as functions of temperature up to 1200 K. Both the standard Perdew-Burke-Ernzerhof (PBE) and the Perdew-Burke-Ernzerhof revised for solids (PBEsol) exchange-correlational functionals were examined and it was found that the PBEsol functional was generally better than the PBE functional in describing both the crystal and electronic properties for the La3-xTe4.
Research Organization:
Lawrence Berkeley National Laboratory, Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC); Pennsylvania State University, University Park, PA (United States)
Sponsoring Organization:
National Aeronautics and Space Administration (NASA); National Science Foundation (NSF); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE)
Grant/Contract Number:
AC02-05CH11231; FG02-07ER46417
OSTI ID:
1462704
Alternate ID(s):
OSTI ID: 1496351
Journal Information:
Computational Materials Science, Journal Name: Computational Materials Science Journal Issue: C Vol. 142; ISSN 0927-0256
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (42)

Ab Initio Thermochemistry of Solid-State Materials journal June 2010
Mean-field potential approach to the quasiharmonic theory of solids journal January 2003
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
Thermodynamic properties of Al, Ni, NiAl, and Ni3Al from first-principles calculations journal May 2004
First-principles lattice dynamics and heat capacity of BiFeO3 journal June 2011
First-principles thermodynamics from phonon and Debye model: Application to Ni and Ni3Al journal February 2010
YPHON: A package for calculating phonons of polar materials journal November 2014
Optimizing Thermoelectric Efficiency in La 3− x Te 4 via Yb Substitution journal May 2010
The Structure Refinement of La2Te3, a Th3P4 Type Structure journal February 1966
Convergence of electronic bands for high performance bulk thermoelectrics journal May 2011
High-performance bulk thermoelectrics with all-scale hierarchical architectures journal September 2012
The origin of electronic band structure anomaly in topological crystalline insulator group-IV tellurides journal November 2015
On the tuning of electrical and thermal transport in thermoelectrics: an integrated theory–experiment perspective journal February 2016
First-principles calculations of lattice dynamics and thermal properties of polar solids journal May 2016
Effective mass and Fermi surface complexity factor from ab initio band structure calculations journal February 2017
Thermoelectric and Electrical Measurements in the La–Te System journal February 1965
Effects of spin structures on phonons in BaFe2As2 journal July 2010
Commentary: The Materials Project: A materials genome approach to accelerating materials innovation journal July 2013
The best thermoelectric. journal July 1996
Neutron scattering lengths and cross sections journal January 1992
Study on the effect of Pb partial substitution for Te on the thermoelectric properties of La 3 Te 4− x Pb x materials journal April 2012
A mixed-space approach to first-principles calculations of phonon frequencies for polar materials journal April 2010
A first-principles approach to finite temperature elastic constants journal May 2010
Mechanical properties of thermoelectric lanthanum telluride from quantum mechanics journal June 2017
Inhomogeneous Electron Gas journal November 1964
Self-Consistent Equations Including Exchange and Correlation Effects journal November 1965
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Classical mean-field approach for thermodynamics: Ab initio thermophysical properties of cerium journal May 2000
Mean-field potential approach to thermodynamic properties of metal: Al as a prototype journal July 2000
Transport coefficients from first-principles calculations journal September 2003
Linear optical properties in the projector-augmented wave methodology journal January 2006
Thermoelectric performance of lanthanum telluride produced via mechanical alloying journal September 2008
Ab initio lattice dynamics simulations and inelastic neutron scattering spectra for studying phonons in BaFe 2 As 2 : Effect of structural phase transition, structural relaxation, and magnetic ordering journal February 2009
Phonon density of states and heat capacity of La 3 − x Te 4 journal November 2009
Electron and phonon scattering in the high-temperature thermoelectric La 3 Te 4 − z M z ( M = Sb , Bi ) journal March 2010
Physical properties of the thermoelectric cubic lanthanum chalcogenides La 3 − y X 4 ( X = S, Se, Te) from first principles journal November 2013
Thermal physics of the lead chalcogenides PbS, PbSe, and PbTe from first principles journal May 2014
Restoring the Density-Gradient Expansion for Exchange in Solids and Surfaces journal April 2008
Generalized Gradient Approximation Made Simple journal October 1996
VESTA 3 for three-dimensional visualization of crystal, volumetric and morphology data journal October 2011
Three-Dimensional Visualization in Powder Diffraction journal December 2007

Similar Records

Phonon Density of States and Heat Capacity of La$_{3-x}$Te$_4$
Journal Article · Wed Dec 31 23:00:00 EST 2008 · Physical Review B · OSTI ID:1010982

First-principles calculations of the electronic and structural properties of GaSb
Journal Article · Sat Oct 15 00:00:00 EDT 2016 · Semiconductors · OSTI ID:22649696

Effect of XC functionals and dispersion corrections on the DFT‐computed structural and vibrational properties of SrCl2–NaCl and ZrF4–LiF
Journal Article · Tue Apr 09 20:00:00 EDT 2024 · Journal of Raman Spectroscopy · OSTI ID:2589263