Add Si_JCP_2017 files

README.md

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+---
+configs:
+- config_name: default
+  data_files: "co/*.parquet"
+- config_name: info
+  data_files: "ds.parquet"
+license: cc-by-4.0
+tags:
+- molecular dynamics
+- mlip
+- interatomic potential
+pretty_name: Si JCP 2017
+---
+### <details><summary>Cite this dataset </summary>Cubuk, E. D., Malone, B. D., Onat, B., Waterland, A., and Kaxiras, E. _Si JCP 2017_. ColabFit, 2023. https://doi.org/10.60732/68b1a5ad</details>  
+#### 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_paehju6qhaym_0  
+#### Visit the ColabFit Exchange to search additional datasets by author, description, element content and more.  
+https://materials.colabfit.org
+<br><hr>  
+# Dataset  Name  
+Si JCP 2017  
+### Description  
+A dataset of 64-atom silicon configurations in four phases: cubic-diamond, (beta)-tin, R8, and liquid. MD simulations are run at 300, 600 and 900 K for solid phases; up to 2500 K for the L phase. All relaxations performed at zero pressure. Additional configurations prepared by random distortion of crystal structures. VASP was used with a PAW pseudopotential and PBE exchange correlation. k-point mesh was optimized for energy convergence of 0.5 meV/atom and stress convergence of 0.1 kbar. The plane wave energy cutoff was set to 300 eV. To reduce the correlation between data points MD, data were thinned by using one of every 100 consecutive structures from the MD simulations at 300 K and one of every 20 structures from higher temperature MD simulations.  
+### Dataset authors  
+Ekin D. Cubuk, Brad D. Malone, Berk Onat, Amos Waterland, Efthimios Kaxiras  
+### Publication  
+https://doi.org/10.1063/1.4990503  
+### Original data link  
+https://doi.org/10.1063/1.4990503  
+### License  
+CC-BY-4.0  
+### Number of unique molecular configurations  
+1110  
+### Number of atoms  
+71040  
+### Elements included  
+Si  
+### Properties included  
+energy, atomic forces, cauchy stress  
+<br>
+<hr>  
+
+# 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).  
+<br>
+#### 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)  

co/co_0.parquet

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+version https://git-lfs.github.com/spec/v1
+oid sha256:ff0214c60fe3323e1973a1f6d2b10c9da1811c84ea18e3a990a702b6a96ebd82
+size 3407900

ds.parquet

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+version https://git-lfs.github.com/spec/v1
+oid sha256:845f5b1ec48beea95b0a7e5dbd9bd18110dc959e7660c865bee96a3bf9672f7a
+size 19083