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Materials Cloud three-dimensional crystals database (MC3D)

Sebastiaan Huber1, Marnik Bercx1*, Nicolas Hörmann1, Martin Uhrin1, Giovanni Pizzi1, Nicola Marzari1,2

1 Theory and Simulation of Materials (THEOS), and National Centre for Computational Design and Discovery of Novel Materials (MARVEL), École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland

2 Laboratory for Materials Simulations, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland

* Corresponding authors emails: marnik.bercx@epfl.ch
DOI10.24435/materialscloud:rw-t0 [version v1]

Publication date: Mar 12, 2022

How to cite this record

Sebastiaan Huber, Marnik Bercx, Nicolas Hörmann, Martin Uhrin, Giovanni Pizzi, Nicola Marzari, Materials Cloud three-dimensional crystals database (MC3D), Materials Cloud Archive 2022.38 (2022), doi: 10.24435/materialscloud:rw-t0.


The Materials Cloud three-dimensional database is a curated set of relaxed three-dimensional crystal structures based on raw CIF data taken from the external experimental databases MPDS, COD and ICSD. The raw CIF data have been imported, cleaned and parsed into a crystal structure; their ground-state has been computed using the SIRIUS-enabled pw.x code of the Quantum ESPRESSO distribution, and tight tolerance criteria for the calculations using the SSSP protocols. This entire procedure is encoded into an AiiDA workflow which automates the process while keeping full data provenance. Here, since the original source data of the ICSD and MPDS databases are copyrighted, only the provenance of the final SCF calculation on the relaxed structures can be made publicly available. The MC3D ID numbers come from a list of unique "parent" stoichiometric structures that has been created and curated from a collection of these experimental databases. Once a parent structure has been optimized using density-functional theory, it is made public and added to the online Discover section of the Materials Cloud (as mentioned, copyright might prevent publishing the original parent). Note that since not all structures have been calculated, some ID numbers are missing from the public version of the database. The full ID of each structure also contains as an appended modifier the functional that was used in the calculations. Since the ID number points to the same unique parent, mc3d-1234/pbe and mc3d-1234/pbesol have the same starting point, but have been then relaxed according to their respective functionals.

Materials Cloud sections using this data


File name Size Description
Open this AiiDA archive on renkulab.io (https://renkulab.io/)
31.5 MiB AiiDA export archive of the final StructureData nodes
25.2 MiB Zip archive of all the final structures in CIF format.
Open this AiiDA archive on renkulab.io (https://renkulab.io/)
12.0 GiB AiiDA export of the final SCF work chain for all optimized structures.


Files and data are licensed under the terms of the following license: Creative Commons Attribution 4.0 International.
Metadata, except for email addresses, are licensed under the Creative Commons Attribution Share-Alike 4.0 International license.

External references

Journal reference
Journal reference
A. Merkys et al., COD::CIF::Parser: an error-correcting CIF parser for the Perl language, Journal of Applied Crystallography 49, 292–301 (2016) doi:10.1107/S1600576715022396


density-functional theory AiiDA database MaX MARVEL/HPC PASC PRACE

Version history:

2022.38 (version v1) [This version] Mar 12, 2022 DOI10.24435/materialscloud:rw-t0