.. image:: static/logo.png

2DHub.org serves as a platform offering a curated collection of resources
pertinent to the 2D materials community.  Notably, it provides access to
several open-access databases focused on 2D materials.  With the exception
of the experimental database (X2DB) these databases comprise data
generated from first-principles calculations using the GPAW electronic
structure code.

.. list-table::
   :class: frontpage
   :widths: 2 3

   * - .. image:: static/c2db.png
          :align: center
          :height: 105px
          :target: c2db/c2db.html

     - `Computational 2D Materials Database <https://c2db.fysik.dtu.dk/>`__
       (C2DB)

   * - .. image:: static/x2db.png
          :align: center
          :height: 105px
          :target: x2db/x2db.html

     - `Experimental 2D Materials Database <https://x2db.fysik.dtu.dk/>`__
       (X2DB)

   * - .. image:: static/bidb.png
          :align: center
          :height: 105px
          :target: bidb/bidb.html

     - `van der Waals Bilayer Database <https://bidb.fysik.dtu.dk>`__
       (BiDB)

   * - .. image:: static/qpod.png
          :align: center
          :height: 105px
          :target: qpod/qpod.html

     - `Quantum Point Defects Database <https://qpod.fysik.dtu.dk>`__
       (QPOD)

   * - .. image:: static/hetdb.png
          :align: center
          :height: 105px
          :target: hetdb/hetdb.html

     - `van der Waals 2D Heterostructure Database
       <https://hetdb.fysik.dtu.dk>`__ (HetDB)

   * - .. image:: static/2dalloys.png
          :align: center
          :height: 105px
          :target: 2dalloys/2dalloys.html

     - `2D-Alloy Database <https://cmrdb.fysik.dtu.dk/2dalloys>`__
       (2DAlloys)


.. toctree::
    :hidden:

    c2db/c2db
    x2db/x2db
    bidb/bidb
    qpod/qpod
    hetdb/hetdb
    2dalloys/2dalloys


Software
========

* `GPAW <https://gpaw.readthedocs.io/>`__ electronic structure code
* `TaskBlaster <https://taskblaster.readthedocs.io/>`__ workflow framework
* `QEH model <https://qeh.readthedocs.io/>`__ – dielectric screening
  in 2D heterostructures
* `Moiré structure generator
  <https://gitlab.com/asr-dev/asr-lib/-/tree/hetDB/hetdb/tasks>`__
* `This web-page <https://gitlab.com/camd/2dhub/>`__


.. _GPAW: https://gpaw.readthedocs.io/
.. _X2DB: https://x2db.fysik.dtu.dk/


Other databases
===============

* `CMR <https://cmr.fysik.dtu.dk/>`__
* `Materials Project <https://materialsproject.org/>`__
* `NOMAD <https://www.nomad-coe.eu/nomad-coe>`__
* `OQMD <https://oqmd.org/>`__
* `Materials Cloud 2D <https://mc2d.materialscloud.org>`__
* `Topological 2D Materials Database <https://topologicalquantumchemistry.com/topo2d/index.html>`__

---

All CMR databases are licensed under a
`Creative Commons Attribution-ShareAlike 4.0
International License <https://creativecommons.org/licenses/by-sa/4.0/>`__
|bysa|


.. |bysa| image:: https://licensebuttons.net/l/by-sa/4.0/88x31.png
    :target: https://creativecommons.org/licenses/by-sa/4.0/
    :alt: Creative Commons License