skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Quantifying uncertainty in high-throughput density functional theory: A comparison of AFLOW, Materials Project, and OQMD

Journal Article · · Physical Review Materials
ORCiD logo [1];  [2];  [3];  [1];  [1];  [1];  [1];  [4];  [2];  [2]
  1. Citrine Informatics, Redwood City, CA (United States)
  2. Citrine Informatics, Inc., Redwood City, CA (United States)
  3. Citrine Informatics, Redwood City, CA (United States); Olin College of Engineering, Needham, MA (United States)
  4. Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)

A central challenge in high-throughput density functional theory (HT-DFT) calculations is selecting a combination of input parameters and postprocessing techniques that can be used across all materials classes, while also managing accuracy-cost tradeoffs. To investigate the effects of these parameter choices, we consolidate three large HT-DFT databases: Automatic-FLOW (AFLOW), the Materials Project (MP), and the Open Quantum Materials Database (OQMD), and compare reported properties across each pair of databases for materials calculated using the same initial crystal structure. We find that HT-DFT formation energies and volumes are generally more reproducible than band gaps and total magnetizations; for instance, a notable fraction of records disagree on whether a material is metallic (up to 7%) or magnetic (up to 15%). The variance between calculated properties is as high as 0.105 eV/atom (median relative absolute difference, or MRAD, of 6%) for formation energy, 0.65 Å3/ atom (MRAD of 4%) for volume, 0.21 eV (MRAD of 9%) for band gap, and 0.15 μB/ formula unit (MRAD of 8%) for total magnetization, comparable to the differences between DFT and experiment. Here, we trace some of the larger discrepancies to choices involving pseudopotentials, the DFT + U formalism, and elemental reference states, and argue that further standardization of HT-DFT would be beneficial to reproducibility.

Research Organization:
Citrine Informatics, Redwood City, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Office of SBIR/STTR Programs (SBIR/STTR)
Grant/Contract Number:
SC0015106
OSTI ID:
1975497
Journal Information:
Physical Review Materials, Vol. 7; ISSN 2475-9953
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (74)

The high-throughput highway to computational materials design journal February 2013
Computational predictions of energy materials using density functional theory journal January 2016
Materials Design and Discovery with High-Throughput Density Functional Theory: The Open Quantum Materials Database (OQMD) journal September 2013
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
AFLOWLIB.ORG: A distributed materials properties repository from high-throughput ab initio calculations journal June 2012
Stability of Fe-Based Alloys With Structure Type C 6 Cr 23 journal January 2005
CatApp: A Web Application for Surface Chemistry and Heterogeneous Catalysis journal December 2011
The Computational Materials Repository journal November 2012
Surface energies of elemental crystals journal September 2016
The Harvard Clean Energy Project: Large-Scale Computational Screening and Design of Organic Photovoltaics on the World Community Grid journal August 2011
The joint automated repository for various integrated simulations (JARVIS) for data-driven materials design journal November 2020
Materials Cloud, a platform for open computational science journal September 2020
Commentary: The Materials Project: A materials genome approach to accelerating materials innovation journal July 2013
Correcting density functional theory for accurate predictions of compound enthalpies of formation: Fitted elemental-phase reference energies journal March 2012
TE Design Lab: A virtual laboratory for thermoelectric material design journal February 2016
High-throughput electronic band structure calculations: Challenges and tools journal August 2010
AiiDA: automated interactive infrastructure and database for computational science journal January 2016
The atomic simulation environment—a Python library for working with atoms journal June 2017
MPInterfaces: A Materials Project based Python tool for high-throughput computational screening of interfacial systems journal September 2016
Python Materials Genomics (pymatgen): A robust, open-source python library for materials analysis journal February 2013
The Open Quantum Materials Database (OQMD): assessing the accuracy of DFT formation energies journal December 2015
Amp: A modular approach to machine learning in atomistic simulations journal October 2016
The alloy theoretic automated toolkit: A user guide journal December 2002
Atomate: A high-level interface to generate, execute, and analyze computational materials science workflows journal November 2017
CALYPSO: A method for crystal structure prediction journal October 2012
The MAterials Simulation Toolkit (MAST) for atomistic modeling of defects and diffusion journal January 2017
First principles phonon calculations in materials science journal November 2015
Band structure diagram paths based on crystallography journal February 2017
A user guide for SLUSCHI: Solid and Liquid in Ultra Small Coexistence with Hovering Interfaces journal March 2016
USPEX—Evolutionary crystal structure prediction journal December 2006
XtalOpt: An open-source evolutionary algorithm for crystal structure prediction journal February 2011
Designing meaningful density functional theory calculations in materials science—a primer journal November 2004
AiiDA 1.0, a scalable computational infrastructure for automated reproducible workflows and data provenance journal September 2020
Identifying an efficient, thermally robust inorganic phosphor host via machine learning journal October 2018
Combinatorial screening for new materials in unconstrained composition space with machine learning journal March 2014
Reproducibility in density functional theory calculations of solids journal March 2016
New developments in the Inorganic Crystal Structure Database (ICSD): accessibility in support of materials research and design journal May 2002
Projector augmented-wave method journal December 1994
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Generalized Gradient Approximation Made Simple journal October 1996
High-Throughput Combinatorial Database of Electronic Band Structures for Inorganic Scintillator Materials journal June 2011
Uncovering Compounds by Synergy of Cluster Expansion and High-Throughput Methods journal April 2010
High-throughput computational screening of thermal conductivity, Debye temperature, and Grüneisen parameter using a quasiharmonic Debye model journal November 2014
A RESTful API for exchanging materials data in the AFLOWLIB.org consortium journal October 2014
Charting the complete elastic properties of inorganic crystalline compounds journal March 2015
Understanding thermoelectric properties from high-throughput calculations: trends, insights, and comparisons with experiment journal January 2016
A database to enable discovery and design of piezoelectric materials journal September 2015
High-throughput screening of inorganic compounds for the discovery of novel dielectric and optical materials journal January 2017
High-throughput density-functional perturbation theory phonons for inorganic materials journal May 2018
Author Correction: Automated generation and ensemble-learned matching of X-ray absorption spectra journal April 2018
Prediction of solid-aqueous equilibria: Scheme to combine first-principles calculations of solids with experimental aqueous states journal June 2012
The Materials Application Programming Interface (API): A simple, flexible and efficient API for materials data based on REpresentational State Transfer (REST) principles journal February 2015
High-throughput computational search for strengthening precipitates in alloys journal January 2016
High-Throughput Computational Screening of Perovskites for Thermochemical Water Splitting Applications journal July 2016
Crystal structure, energetics, and phase stability of strengthening precipitates in Mg alloys: A first-principles study journal October 2018
First-Principles Determination of Multicomponent Hydride Phase Diagrams: Application to the Li-Mg-N-H System journal September 2007
The phase stability network of all inorganic materials journal February 2020
Exploring the High-Pressure Materials Genome journal November 2018
Beyond bulk single crystals: A data format for all materials structure–property–processing relationships journal August 2016
Calculation of the lattice constant of solids with semilocal functionals journal February 2009
The effect of elastic strain on energy band gap and lattice parameter in III-V compounds journal November 1978
Effect of mismatch strain on band gap in III‐V semiconductors journal June 1985
Predicted band-gap pressure coefficients of all diamond and zinc-blende semiconductors: Chemical trends journal August 1999
An improved symmetry-based approach to reciprocal space path selection in band structure calculations journal July 2020
Accelerated discovery of new magnets in the Heusler alloy family journal April 2017
High-throughput prediction of the ground-state collinear magnetic order of inorganic materials using Density Functional Theory journal June 2019
MATCOR, a program for the cross-validation of material properties between databases journal February 2021
A high-throughput infrastructure for density functional theory calculations journal June 2011
AFLOW: An automatic framework for high-throughput materials discovery journal June 2012
Band theory and Mott insulators: Hubbard U instead of Stoner I journal July 1991
Perspective: Treating electron over-delocalization with the DFT+U method journal June 2015
The AFLOW standard for high-throughput materials science calculations journal October 2015
Formation enthalpies by mixing GGA and GGA + U calculations journal July 2011