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Title: Generative adversarial networks (GAN) based efficient sampling of chemical composition space for inverse design of inorganic materials

Journal Article · · npj Computational Materials
 [1]; ORCiD logo [2];  [1];  [3];  [2]; ORCiD logo [4]
  1. Guizhou Univ., Guiyang (China)
  2. Univ. of South Carolina, Columbia, SC (United States)
  3. Guizhou Univ., Guiyang (China). Key Lab. of Advanced Manufacturing Technology, Ministry of Education
  4. Guizhou Univ., Guiyang (China); Univ. of South Carolina, Columbia, SC (United States)

A major challenge in materials design is how to efficiently search the vast chemical design space to find the materials with desired properties. One effective strategy is to develop sampling algorithms that can exploit both explicit chemical knowledge and implicit composition rules embodied in the large materials database. Here, we propose a generative machine learning model (MatGAN) based on a generative adversarial network (GAN) for efficient generation of new hypothetical inorganic materials. Trained with materials from the ICSD database, our GAN model can generate hypothetical materials not existing in the training dataset, reaching a novelty of 92.53% when generating 2 million samples. The percentage of chemically valid (charge-neutral and electronegativity-balanced) samples out of all generated ones reaches 84.5% when generated by our GAN trained with such samples screened from ICSD, even though no such chemical rules are explicitly enforced in our GAN model, indicating its capability to learn implicit chemical composition rules to form compounds. Our algorithm is expected to be used to greatly expand the range of the design space for inverse design and large-scale computational screening of inorganic materials.

Research Organization:
Univ. of South Carolina, Columbia, SC (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); National Natural Science Foundation of China (NSFC)
Grant/Contract Number:
SC0020272; 1940099; 1905775; OIA-1655740; 51741101; 2018AAA0101803
OSTI ID:
1647313
Journal Information:
npj Computational Materials, Vol. 6, Issue 1; ISSN 2057-3960
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 62 works
Citation information provided by
Web of Science

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Cited By (3)

Machine Learning based prediction of noncentrosymmetric crystal materials journal October 2020
Distance Matrix-Based Crystal Structure Prediction Using Evolutionary Algorithms journal December 2020
Contact Map based Crystal Structure Prediction using Global Optimization preprint January 2020

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