---
configs:
- config_name: default
data_files: "co/*.parquet"
- config_name: info
data_files: "ds.parquet"
license: cc0-1.0
tags:
- molecular dynamics
- mlip
- interatomic potential
pretty_name: NMD-18
---
### Cite this dataset
Sutton, C., Ghiringhelli, L. M., Yamamoto, T., Lysogorskiy, Y., Blumenthal, L., Hammerschmidt, T., Golebiowski, J. R., Liu, X., Ziletti, A., and Scheffler, M. _NMD-18_. ColabFit, 2023. https://doi.org/10.60732/e4af85f8
#### This dataset has been curated and formatted for the ColabFit Exchange
#### This dataset is also available on the ColabFit Exchange:
https://materials.colabfit.org/id/DS_of1clsgf4nab_0
#### Visit the ColabFit Exchange to search additional datasets by author, description, element content and more.
https://materials.colabfit.org
# Dataset Name
NMD-18
### Description
3,000 Al-Ga-In sesquioxides with energies and band gaps. Relaxed and Vegard's Law geometries with formation energy and band gaps at DFT-PBE level of theory of (Alx-Gay-Inz)2O3 oxides, x+y+z=1. Contains all structures from the NOMAD 2018 Kaggle challenge training and leaderboard data. The formation energy and bandgap energy were computed by using the PBE exchange-correlation DFT functional with the all-electron electronic structure code FHI-aims with tight setting.
### Dataset authors
Christopher Sutton, Luca M. Ghiringhelli, Takenori Yamamoto, Yury Lysogorskiy, Lars Blumenthal, Thomas Hammerschmidt, Jacek R. Golebiowski, Xiangyue Liu, Angelo Ziletti, Matthias Scheffler
### Publication
https://doi.org/10.1038/s41524-019-0239-3
### Original data link
https://qmml.org/datasets.html
### License
CC0-1.0
### Number of unique molecular configurations
3000
### Number of atoms
185070
### Elements included
Al, Ga, In, O
### Properties included
formation energy, electronic band gap
# Usage
- `ds.parquet` : Aggregated dataset information.
- `co/` directory: Configuration rows each include a structure, calculated properties, and metadata.
- `cs/` directory : Configuration sets are subsets of configurations grouped by some common characteristic. If `cs/` does not exist, no configurations sets have been defined for this dataset.
- `cs_co_map/` directory : The mapping of configurations to configuration sets (if defined).
#### ColabFit Exchange documentation includes descriptions of content and example code for parsing parquet files:
- [Parquet parsing: example code](https://materials.colabfit.org/docs/how_to_use_parquet)
- [Dataset info schema](https://materials.colabfit.org/docs/dataset_schema)
- [Configuration schema](https://materials.colabfit.org/docs/configuration_schema)
- [Configuration set schema](https://materials.colabfit.org/docs/configuration_set_schema)
- [Configuration set to configuration mapping schema](https://materials.colabfit.org/docs/cs_co_mapping_schema)