Cited by 45Machine Learning in Materials ScienceAdvanced Chemical Physics StudiesModel Reduction and Neural Networks

Combining phonon accuracy with high transferability in Gaussian approximation potential models

Open access
George, Janine, Hautier, Geoffroy, Bartók, Albert P., Csányi, Gábor, Deringer, Volker L.·2020·The Journal of Chemical Physics

Abstract

Machine learning driven interatomic potentials, including Gaussian approximation potential (GAP) models, are emerging tools for atomistic simulations. Here, we address the methodological question of how one can fit GAP models that accurately predict vibrational properties in specific regions of configuration space while retaining flexibility and transferability to others. We use an adaptive regularization of the GAP fit that scales with the absolute force magnitude on any given atom, thereby exploring the Bayesian interpretation of GAP regularization as an “expected error” and its impact on the prediction of physical properties for a material of interest. The approach enables excellent predictions of phonon modes (to within 0.1 THz–0.2 THz) for structurally diverse silicon allotropes, and it can be coupled with existing fitting databases for high transferability across different regions of configuration space, which we demonstrate for liquid and amorphous silicon. These findings and workflows are expected to be useful for GAP-driven materials modeling more generally.

Integrity signals

Registry

Crossref · 10.1063/5.0013826

Cites

80 of 80 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The total NNP errors are similar to other state-of-the-art (rotationally invariant) MLPs for the modeling of reactive events.

    “The total NNP errors are similar to other state-of-the-art (rotationally invariant) MLPs38,42,44 for the modeling of reactive events.”
  • These errors are similar to other reactive (rotationally invariant) MLPs and about the same as for previously developed silica NNPs.

    “These errors are similar to other reactive (rotationally invariant) MLPs42,44,52 and about the same as for our previously developed silica NNPs38.”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
George, J., Hautier, G., Bartók, A. P., Csányi, G., & Deringer, V. L.
Affiliations
  • UCLouvain (BE)
  • University of Warwick (GB)
  • Engineering Laboratory, University of Cambridge 3 , Cambridge CB2 1PZ, United Kingdom
  • University of Oxford (GB)
Corresponding author
Deringer, Volker L.
Venue
The Journal of Chemical Physics
Published
2020-07-23
Volume
153
Issue
4
Pages
044104-044104
ISSN
  • 0021-9606 (ISSN-L)
  • 1089-7690
OpenAlex
W3024746059
Cited by
44
References
79
Citations by year
2026: 4 · 2025: 5 · 2024: 6 · 2023: 9 · 2022: 11 · 2021: 6 · 2020: 3
FWCI
2.82
Type
journal article
Language
en
Open access
Locations
  • The Journal of Chemical Physics (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Warwick Research Archive Portal (University of Warwick) (acceptedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • Digital Access to Libraries (Université catholique de Louvain (UCL), l'Université de Namur (UNamur) and the Université Saint-Louis (USL-B)) (submittedVersion, other-oa)
  • Science and Technology Facilities Council (submittedVersion)
  • arXiv (Cornell University)
Funders
  • Leverhulme Trust (ECF-2017-278)
  • Engineering and Physical Sciences Research Council (EP/P022561/1)
  • Horizon 2020 Framework Programme (730897, 837910)
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Machine Learning in Materials Science
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Advanced Chemical Physics Studies
  • Physical Sciences › Physics and Astronomy › Statistical and Nonlinear Physics › Model Reduction and Neural Networks
Keywords
Gaussian approximation potential, interatomic potentials, phonon modes, vibration characteristics, adaptive regularization, Bayesian regularization, transferability, silicon allotropes, liquid silicon, amorphous silicon, machine learning interatomic potentials

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review