LAMMPS.Si-vac.d
---------------
**Description:**
This example shows how to use pARTn in LAMMPS, to compute the diffusion of a single vacancy in a Si crystal.
There are two input structures containing the same defect:

 - ``conf.sw`` with 511 atoms;
 - ``conf_big.sw`` with 7999 atoms.

The choice of which simulation box is used affects both input files, the LAMMPS input in ``lammps.in``, and the ARTn input ``artn.in``, see the comments in both files.

The example is launched like a regular LAMMPS calculation:

.. code-block:: bash
		/lammps_path/lmp -in lammps.in

The energy barrier should be around 0.5 eV for both simulation boxes.