Search Results for author: Christopher J. Bartel

Found 8 papers, 4 papers with code

Accelerating the prediction of inorganic surfaces with machine learning interatomic potentials

no code implementations18 Dec 2023 Kyle Noordhoek, Christopher J. Bartel

The surface properties of solid-state materials often dictate their functionality, especially for applications where nanoscale effects become important.

CHGNet: Pretrained universal neural network potential for charge-informed atomistic modeling

1 code implementation28 Feb 2023 Bowen Deng, Peichen Zhong, KyuJung Jun, Janosh Riebesell, Kevin Han, Christopher J. Bartel, Gerbrand Ceder

The simulation of large-scale systems with complex electron interactions remains one of the greatest challenges for the atomistic modeling of materials.

Atomic Forces

A probabilistic deep learning approach to automate the interpretation of multi-phase diffraction spectra

no code implementations30 Mar 2021 Nathan J. Szymanski, Christopher J. Bartel, Yan Zeng, Qingsong Tu, Gerbrand Ceder

Autonomous synthesis and characterization of inorganic materials requires the automatic and accurate analysis of X-ray diffraction spectra.

Probabilistic Deep Learning

A critical examination of compound stability predictions from machine-learned formation energies

2 code implementations28 Jan 2020 Christopher J. Bartel, Amalie Trewartha, Qi. Wang, Alex Dunn, Anubhav Jain, Gerbrand Ceder

By testing seven machine learning models for formation energy on stability predictions using the Materials Project database of DFT calculations for 85, 014 unique chemical compositions, we show that while formation energies can indeed be predicted well, all compositional models perform poorly on predicting the stability of compounds, making them considerably less useful than DFT for the discovery and design of new solids.

Materials Science Computational Physics

The role of decomposition reactions in assessing first-principles predictions of solid stability

no code implementations18 Oct 2018 Christopher J. Bartel, Alan W. Weimer, Stephan Lany, Charles B. Musgrave, Aaron M. Holder

This analysis shows that the decomposition into elemental forms is rarely the competing reaction that determines compound stability and that approximately two-thirds of decomposition reactions involve no elemental phases.

Materials Science

Physical descriptor for the Gibbs energy of inorganic crystalline solids and prediction of temperature-dependent materials chemistry

no code implementations21 May 2018 Christopher J. Bartel, Samantha L. Millican, Ann M. Deml, John R. Rumptz, William Tumas, Alan W. Weimer, Stephan Lany, Vladan Stevanović, Charles B. Musgrave, Aaron M. Holder

Using the resulting predicted thermochemical data, we generate thousands of temperature-dependent phase diagrams to provide insights into the effects of temperature and composition on materials synthesizability and stability and to establish the temperature-dependent scale of metastability for inorganic compounds.

Materials Science

New Tolerance Factor to Predict the Stability of Perovskite Oxides and Halides

1 code implementation23 Jan 2018 Christopher J. Bartel, Christopher Sutton, Bryan R. Goldsmith, Runhai Ouyang, Charles B. Musgrave, Luca M. Ghiringhelli, Matthias Scheffler

Predicting the stability of the perovskite structure remains a longstanding challenge for the discovery of new functional materials for photovoltaics, fuel cells, and many other applications.

Materials Science

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