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SW_LeeHwang_2012GGA_Si__MO_040570764911_000

Title
A single sentence description.
Stillinger-Weber potential for Si optimized for thermal conductivity due to Lee and Hwang (1985) (GGA parameterization) v000
Description
A short description of the Model describing its key features including for example: type of model (pair potential, 3-body potential, EAM, etc.), modeled species (Ac, Ag, ..., Zr), intended purpose, origin, and so on.
A force-matching method is employed to optimize the parameters of the Stillinger–Weber (SW) interatomic potential for calculation of the lattice thermal conductivity of silicon. The parameter fitting is based on first-principles density functional calculations of the restoring forces for atomic displacements. The thermal conductivities of bulk crystalline Si at 300–500 K estimated using nonequilibrium molecular dynamics with the modified parameter set show excellent agreement with existing experimental data. The force-matching-based parameterization is shown to provide improved estimation of thermal conductivity, as compared to the original SW parameter set, through analysis of phonon density of states and phonon dispersion relations. Two parameterizations are provided in the paper. one fit to DFT/LDA and the other to DFT/GGA. This model is the GGA parameterization.
Species
The supported atomic species.
Si
Contributor tadmor
Maintainer tadmor
Author Ellad Tadmor
Publication Year 2019
Source Citations
A citation to primary published work(s) that describe this KIM Item.

Lee Y, Hwang GS (2012) Force-matching-based parameterization of the Stillinger-Weber potential for thermal conduction in silicon. Phys Rev B 85(12):125204. doi:10.1103/PhysRevB.85.125204

Item Citation Click here to download a citation in BibTeX format.
Short KIM ID
The unique KIM identifier code.
MO_040570764911_000
Extended KIM ID
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SW_LeeHwang_2012GGA_Si__MO_040570764911_000
DOI 10.25950/d8866bfe
https://doi.org/10.25950/d8866bfe
https://search.datacite.org/works/10.25950/d8866bfe
KIM Item Type
Specifies whether this is a Stand-alone Model (software implementation of an interatomic model); Parameterized Model (parameter file to be read in by a Model Driver); Model Driver (software implementation of an interatomic model that reads in parameters).
Parameterized Model using Model Driver SW__MD_335816936951_004
DriverSW__MD_335816936951_004
KIM API Version2.0

Visualizers (in-page)


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)

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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)

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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)

Click on any thumbnail to get a full size image.



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)

Click on any thumbnail to get a full size image.



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)

Click on any thumbnail to get a full size image.



Cubic Crystal Basic Properties Table

Species: Si



Tests

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Errors

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Download Dependency

This Model requires a Model Driver. Archives for the Model Driver SW__MD_335816936951_004 appear below.


SW__MD_335816936951_004.txz Tar+XZ Linux and OS X archive
SW__MD_335816936951_004.zip Zip Windows archive

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