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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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39
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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39
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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Cs8I23Pb8
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A23B8C8
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39
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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Cs8I23Pb8
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39
3
3
[ 1, 1, 1 ]
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null
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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39
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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39
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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Cs8I23Pb8
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39
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null
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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Cs8I23Pb8
Cs8I23Pb8
A23B8C8
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39
3
3
[ 1, 1, 1 ]
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null
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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Cs8I23Pb8
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A23B8C8
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39
3
3
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null
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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39
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null
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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Cs8I23Pb8
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39
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[ 1, 1, 1 ]
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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Cs8I23Pb8
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39
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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Cs8I23Pb8
Cs8I23Pb8
A23B8C8
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39
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3
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null
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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Cs8I23Pb8
Cs8I23Pb8
A23B8C8
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39
3
3
[ 1, 1, 1 ]
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null
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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Cs8I23Pb8
Cs8I23Pb8
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39
3
3
[ 1, 1, 1 ]
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null
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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Cs8I23Pb8
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A23B8C8
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39
3
3
[ 1, 1, 1 ]
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null
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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VASP
DFT-PBE+D3(BJ)
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Cs8I23Pb8
Cs8I23Pb8
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39
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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39
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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Cs8I23Pb8
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A23B8C8
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39
3
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null
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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Cs8I23Pb8
Cs8I23Pb8
A23B8C8
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39
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3
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null
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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Cs8I23Pb8
Cs8I23Pb8
A23B8C8
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39
3
3
[ 1, 1, 1 ]
[ "Halide_Perovskite_Ion_Migration_MLFF_negative_iodide_vacancy__23" ]
null
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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Cs8I23Pb8
Cs8I23Pb8
A23B8C8
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39
3
3
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null
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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39
3
3
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null
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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DFT-PBE+D3(BJ)
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39
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2026-06-03T16:51:30
DS_7iys5iy3bz4z_0
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VASP
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[ [ 12.5423279142473, 1.62103707885962, 0.775068063401516 ], [ 12.1788796068585, 1.95882251661432, 6.94205744773139 ], [ 12.4275751825813, 8.00730677641735, 0.356666876152289 ], [ 0.0684507007081908, 8.08506787242378, 6.41353790499595 ], [ 6.30458928...
[ true, true, true ]
Cs8I23Pb8
Cs8I23Pb8
A23B8C8
[ "Cs", "I", "Pb" ]
[ 0.20512820512820512, 0.5897435897435898, 0.20512820512820512 ]
[ 82, 82, 82, 82, 82, 82, 82, 82, 55, 55, 55, 55, 55, 55, 55, 55, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53 ]
39
3
3
[ 1, 1, 1 ]
[ "Halide_Perovskite_Ion_Migration_MLFF_negative_iodide_vacancy__27" ]
null
{"input": {"description": "VASP PBE-D3-BJ single-point reference data stored in ML_AB training files. Plane-wave cutoff and k-point sampling are given only in the publication's Supporting Information.", "functional": "PBE with Grimme D3 dispersion, Becke-Johnson damping", "mlff": "VASP on-the-fly machine-learned force ...
true
true
,Cs,I,Pb,
End of preview. Expand in Data Studio

Cite this dataset Tyagi, V., Pols, M., Brocks, G., and Tao, S. Halide Perovskite Ion Migration MLFF negative iodide vacancy. ColabFit, 2025. https://doi.org/None

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Dataset Name

Halide Perovskite Ion Migration MLFF negative iodide vacancy

Description

VASP machine-learning-force-field (ML_AB) training set for the CsPbI3 halide perovskite, covering migration of a negatively charged iodide vacancy. This is one of seven sister datasets from the same publication, each providing a VASP ML_AB training set for a slightly different characteristic of the CsPbI3 perovskite (the cubic-tetragonal phase transition and the migration of iodide vacancies and interstitials in neutral, positively charged, and negatively charged states), all generated to train machine-learned force fields for ion migration. Each configuration carries the total energy, atomic forces, and stress from VASP single-point reference calculations using the PBE functional with Grimme D3 dispersion and Becke-Johnson damping (PBE-D3-BJ), on 2x2x2 cubic supercells (~40 atoms). (Plane-wave cutoff and k-point details are reported only in the paper's Supporting Information.)

Dataset authors

Viren Tyagi, Mike Pols, Geert Brocks, Shuxia Tao

Publication

https://doi.org/10.1021/acs.jpclett.5c01139

Original data link

https://doi.org/10.5281/zenodo.19951919

License

CC-BY-4.0

Number of unique molecular configurations

2371

Number of atoms

114129

Elements included

Cs, I, Pb

Properties included

energy, atomic forces, cauchy stress


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:

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