Title
A single sentence description.
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A three-body Stillinger-Weber (SW) Model (Parameterization) for Silicon Optimized for Silicene |
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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.
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This is the Zhang et al. (2014) Stillinger-Weber potential optimized to reproduce properties of silicene (single-layer Si sheet) based on the KIM Model Driver Three_Body_Stillinger_Weber. The authors provide two sets of parameters. This parameterization corresponds to the parameter set referred to as "Optimized SW1" in Zhang et al. (2014). This version update is to make this model compatible with the model driver update to support multiple species. The functional form of the SW potential is written and there is a redifinition of parameters (e.g. A := A*epsilon). Besides, costheta_0 is updated from -0.3333333 to -0.3333333333333333 to give a better approximation of -1/3. |
Species
The supported atomic species.
| Si |
Disclaimer
A statement of applicability provided by the contributor, informing users of the intended use of this KIM Item.
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This potential is designed to reproduce the properties of silicene (single-layer Si sheet) not bulk Si. |
Contributor |
Amit K. Singh |
Maintainer |
Amit K. Singh |
Published on KIM | 2016 |
How to Cite | Click here to download this citation in BibTeX format. |
Funding | Not available |
Short KIM ID
The unique KIM identifier code.
| MO_475612090600_002 |
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.
| Three_Body_Stillinger_Weber_Zhang_Silicene_Model2_Si__MO_475612090600_002 |
Citable Link | https://openkim.org/cite/MO_475612090600_002 |
KIM Item Type
Specifies whether this is a Portable Model (software implementation of an interatomic model); Portable Model with parameter file (parameter file to be read in by a Model Driver); Model Driver (software implementation of an interatomic model that reads in parameters).
| Portable Model using Model Driver Three_Body_Stillinger_Weber__MD_335816936951_002 |
Driver | Three_Body_Stillinger_Weber__MD_335816936951_002 |
KIM API Version | 1.6 |
Previous Version | Three_Body_Stillinger_Weber_Zhang_Silicene_Model2_Si__MO_475612090600_001 |
Grade | Name | Category | Brief Description | Full Results | Aux File(s) |
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P | vc-species-supported-as-stated | mandatory | The model supports all species it claims to support; see full description. |
Results | Files |
P | vc-periodicity-support | mandatory | Periodic boundary conditions are handled correctly; see full description. |
Results | Files |
P | vc-permutation-symmetry | mandatory | Total energy and forces are unchanged when swapping atoms of the same species; see full description. |
Results | Files |
A | vc-forces-numerical-derivative | consistency | Forces computed by the model agree with numerical derivatives of the energy; see full description. |
Results | Files |
P | vc-dimer-continuity-c1 | informational | The energy versus separation relation of a pair of atoms is C1 continuous (i.e. the function and its first derivative are continuous); see full description. |
Results | Files |
P | vc-objectivity | informational | Total energy is unchanged and forces transform correctly under rigid-body translation and rotation; see full description. |
Results | Files |
P | vc-inversion-symmetry | informational | Total energy is unchanged and forces change sign when inverting a configuration through the origin; see full description. |
Results | Files |
P | vc-memory-leak | informational | The model code does not have memory leaks (i.e. it releases all allocated memory at the end); see full description. |
Results | Files |
P | vc-thread-safe | mandatory | The model returns the same energy and forces when computed in serial and when using parallel threads for a set of configurations. Note that this is not a guarantee of thread safety; see full description. |
Results | Files |
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)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)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)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)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)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)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)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)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)This potential is designed to reproduce the properties of silicene (single-layer Si sheet) not bulk Si.
Test | Test Results | Link to Test Results page | Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.
Measured in Millions of Whetstone Instructions (MWI) |
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Cohesive energy versus lattice constant curve for bcc Silicon | view | 26145 | |
Cohesive energy versus lattice constant curve for diamond Silicon | view | 4358 | |
Cohesive energy versus lattice constant curve for fcc Silicon | view | 24783 | |
Cohesive energy versus lattice constant curve for sc Silicon | view | 4323 |
Test | Test Results | Link to Test Results page | Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.
Measured in Millions of Whetstone Instructions (MWI) |
---|---|---|---|
Elastic constants for bcc Si at zero temperature | view | 1824 | |
Elastic constants for fcc Si at zero temperature | view | 1790 | |
Elastic constants for sc Si at zero temperature | view | 1721 |
Test | Test Results | Link to Test Results page | Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.
Measured in Millions of Whetstone Instructions (MWI) |
---|---|---|---|
Elastic constants for hcp Si at zero temperature | view | 1328 |
Test | Test Results | Link to Test Results page | Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.
Measured in Millions of Whetstone Instructions (MWI) |
---|---|---|---|
LammpsExample2_diamond_Si: energy-volume curve of diamond Silicon | view | 4119 |
Test | Test Results | Link to Test Results page | Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.
Measured in Millions of Whetstone Instructions (MWI) |
---|---|---|---|
Equilibrium zero-temperature lattice constant for bcc Si | view | 895 | |
Equilibrium zero-temperature lattice constant for diamond Si | view | 1652 | |
Equilibrium zero-temperature lattice constant for fcc Si | view | 12917 | |
Equilibrium zero-temperature lattice constant for sc Si | view | 12306 |
Test | Test Results | Link to Test Results page | Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.
Measured in Millions of Whetstone Instructions (MWI) |
---|---|---|---|
Equilibrium lattice constants for hcp Si | view | 9021 |
Test | Test Results | Link to Test Results page | Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.
Measured in Millions of Whetstone Instructions (MWI) |
---|---|---|---|
Linear thermal expansion coefficient of diamond Si at room temperature under zero pressure | view | 164459466 |
Test | Test Results | Link to Test Results page | Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.
Measured in Millions of Whetstone Instructions (MWI) |
---|---|---|---|
Monovacancy formation energy and relaxation volume for diamond Si | view | 202062 |
Test | Test Results | Link to Test Results page | Benchmark time
Usertime multiplied by the Whetstone Benchmark. This number can be used (approximately) to compare the performance of different models independently of the architecture on which the test was run.
Measured in Millions of Whetstone Instructions (MWI) |
---|---|---|---|
Vacancy formation and migration energy for diamond Si | view | 518079 |
Test | Error Categories | Link to Error page |
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Cohesive energy versus <-1 1 0>{1 1 1}shear parameter relation for diamond Si | other | view |
Test | Error Categories | Link to Error page |
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Conjugate gradient relaxation of monovacancy in diamond silicon | other | view |
Three_Body_Stillinger_Weber_Zhang_Silicene_Model2_Si__MO_475612090600_002.txz | Tar+XZ | Linux and OS X archive |
Three_Body_Stillinger_Weber_Zhang_Silicene_Model2_Si__MO_475612090600_002.zip | Zip | Windows archive |
This Model requires a Model Driver. Archives for the Model Driver Three_Body_Stillinger_Weber__MD_335816936951_002 appear below.
Three_Body_Stillinger_Weber__MD_335816936951_002.txz | Tar+XZ | Linux and OS X archive |
Three_Body_Stillinger_Weber__MD_335816936951_002.zip | Zip | Windows archive |