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Sim_LAMMPS_ReaxFF_PolsVincentLunaFilot_2021_CsPbI__SM_367523551183_000

Interatomic potential for Cesium (Cs), Iodine (I), Lead (Pb).
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Title
A single sentence description.
LAMMPS ReaxFF potential for CsPbI3 developed by Pols et al (2021) v000
Description A set of ReaxFF parameters for CsPbI3 has been obtained by fitting the force field to a set of reference data calculated with density functional theory with the PBE + DFT-D3(BJ) exchange-correlation functional in the VASP software package. The training set included different perovskite phases of CsPbI3 and precursor structures (CsI and PbI2). The calculations covered equations of state, atomic charges, formation energies, defect formation energies, and defect migration barriers.
Species
The supported atomic species.
Cs, I, Pb
Disclaimer
A statement of applicability provided by the contributor, informing users of the intended use of this KIM Item.
None
Content Origin The parameter file for the ReaxFF potential was extracted from the supporting information section of the Pols et paper as published online by ACS at https://pubs.acs.org/doi/10.1021/acs.jpclett.1c01192
Contributor Evangelos Voyiatzis
Maintainer Evangelos Voyiatzis
Developer Mike Pols
José Manuel Vicent-Luna
Ivo Filot
Adri C. T. van Duin
Shuxia Tao
Published on KIM 2025
How to Cite

This Simulator Model originally published in [1] is archived in OpenKIM [2-4].

[1] Atomistic Insights Into the Degradation of Inorganic Halide Perovskite CsPbI3: A Reactive Force Field Molecular Dynamics Study. J Phys Chem Lett . 2021June;12:5519−5525. doi:10.1021/acs.jpclett.1c01192 — (Primary Source) A primary source is a reference directly related to the item documenting its development, as opposed to other sources that are provided as background information.

[2] Pols M, Vicent-Luna JM, Filot I, Duin ACT van, Tao S. LAMMPS ReaxFF potential for CsPbI3 developed by Pols et al (2021) v000. OpenKIM; 2025. doi:10.25950/2446d944

[3] Tadmor EB, Elliott RS, Sethna JP, Miller RE, Becker CA. The potential of atomistic simulations and the Knowledgebase of Interatomic Models. JOM. 2011;63(7):17. doi:10.1007/s11837-011-0102-6

[4] Elliott RS, Tadmor EB. Knowledgebase of Interatomic Models (KIM) Application Programming Interface (API). OpenKIM; 2011. doi:10.25950/ff8f563a

Funding Not available
Short KIM ID
The unique KIM identifier code.
SM_367523551183_000
Extended KIM ID
The long form of the KIM ID including a human readable prefix (100 characters max), two underscores, and the Short KIM ID. Extended KIM IDs can only contain alpha-numeric characters (letters and digits) and underscores and must begin with a letter.
Sim_LAMMPS_ReaxFF_PolsVincentLunaFilot_2021_CsPbI__SM_367523551183_000
DOI 10.25950/2446d944
https://doi.org/10.25950/2446d944
https://commons.datacite.org/doi.org/10.25950/2446d944
KIM Item TypeSimulator Model
KIM API Version2.3
Simulator Name
The name of the simulator as defined in kimspec.edn.
LAMMPS
Potential Type reax
Simulator Potential reaxff
Run Compatibility portable-models


BCC Lattice Constant

This bar chart plot shows the mono-atomic body-centered cubic (bcc) lattice constant predicted by the current model (shown in the unique color) compared with the predictions for all other models in the OpenKIM Repository that support the species. The vertical bars show the average and standard deviation (one sigma) bounds for all model predictions. Graphs are generated for each species supported by the model.

(No matching species)

Cohesive Energy Graph

This graph shows the cohesive energy versus volume-per-atom for the current mode for four mono-atomic cubic phases (body-centered cubic (bcc), face-centered cubic (fcc), simple cubic (sc), and diamond). The curve with the lowest minimum is the ground state of the crystal if stable. (The crystal structure is enforced in these calculations, so the phase may not be stable.) Graphs are generated for each species supported by the model.

(No matching species)

Diamond Lattice Constant

This bar chart plot shows the mono-atomic face-centered diamond lattice constant predicted by the current model (shown in the unique color) compared with the predictions for all other models in the OpenKIM Repository that support the species. The vertical bars show the average and standard deviation (one sigma) bounds for all model predictions. Graphs are generated for each species supported by the model.

(No matching species)

Dislocation Core Energies

This graph shows the dislocation core energy of a cubic crystal at zero temperature and pressure for a specific set of dislocation core cutoff radii. After obtaining the total energy of the system from conjugate gradient minimizations, non-singular, isotropic and anisotropic elasticity are applied to obtain the dislocation core energy for each of these supercells with different dipole distances. Graphs are generated for each species supported by the model.

(No matching species)

FCC Elastic Constants

This bar chart plot shows the mono-atomic face-centered cubic (fcc) elastic constants predicted by the current model (shown in blue) compared with the predictions for all other models in the OpenKIM Repository that support the species. The vertical bars show the average and standard deviation (one sigma) bounds for all model predictions. Graphs are generated for each species supported by the model.

(No matching species)

FCC Lattice Constant

This bar chart plot shows the mono-atomic face-centered cubic (fcc) lattice constant predicted by the current model (shown in red) compared with the predictions for all other models in the OpenKIM Repository that support the species. The vertical bars show the average and standard deviation (one sigma) bounds for all model predictions. Graphs are generated for each species supported by the model.

(No matching species)

FCC Stacking Fault Energies

This bar chart plot shows the intrinsic and extrinsic stacking fault energies as well as the unstable stacking and unstable twinning energies for face-centered cubic (fcc) predicted by the current model (shown in blue) compared with the predictions for all other models in the OpenKIM Repository that support the species. The vertical bars show the average and standard deviation (one sigma) bounds for all model predictions. Graphs are generated for each species supported by the model.

(No matching species)

FCC Surface Energies

This bar chart plot shows the mono-atomic face-centered cubic (fcc) relaxed surface energies predicted by the current model (shown in blue) compared with the predictions for all other models in the OpenKIM Repository that support the species. The vertical bars show the average and standard deviation (one sigma) bounds for all model predictions. Graphs are generated for each species supported by the model.

(No matching species)

SC Lattice Constant

This bar chart plot shows the mono-atomic simple cubic (sc) lattice constant predicted by the current model (shown in the unique color) compared with the predictions for all other models in the OpenKIM Repository that support the species. The vertical bars show the average and standard deviation (one sigma) bounds for all model predictions. Graphs are generated for each species supported by the model.

(No matching species)

Cubic Crystal Basic Properties Table

Species: Cs

Species: I

Species: Pb




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