During June 2017, PhD student Javier Díaz  spend 11 days in Barcelona collaborating with Prof. Ignacio Pagonabarraga who is a  Professor in Condensed Matter Physics in the Department of Fundamental Physics at the University of Barcelona. This stay was funded by the santander posgraduate research project fund.

Throughout that time Javier was able to discuss with Prof. Pagonabarraga many interesting aspects and the future work of his project.