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# The Interface Pinning method for studying solid-liquid transitions

This example demonstrate using a bias potential that can be used to study solid-liquid transitions 

with the interface pinning method. This is done by adding a harmonic potential to the Hamiltonian 

that bias the system towards two-phase configurations. 

  S(k)=|rho_k|^2.

## Reference

### Reference

It is recommended to get familiar with the interface pinning method by reading:

  <http://urp.dk/interface_pinning.htm>

## Use of rhok fix

### Use of rhok fix

For this example we will be using the rhok fix.

We will use a k vector that correspond to a Bragg peak.

# The Interface Pinning method for studying melting transitions of the Lennard-Jones (LJ) system

## Example: the Lennard-Jones (LJ) model

We will use the interface pinning method to study melting of the LJ system

We will use the interface pinning method to study melting of the LJ model

at temperature 0.8 and pressure 2.185. This is a coexistence state-point, and the method

can be used to show this. The present directory contains the input files that we will use:

and the reference [J. Chem. Phys. 142, 044104 (2015)] show how the crystal growth rate can be computed from fluctuations.

That method have been experienced to be most effective in the slightly super-heated regime above the melting temperature.

# Contact

## Contact

  Ulf R. Pedersen

  http://www.urp.dk