Hello, I would like to add the force field TB-SMA to cp2k for Au-Au interaction (Cleri & Rosato, PRB 48, 22, 1993, Pu et al. J. Chem. Phys. 126, 144707 2007), where do I have to look in the code to add it? Is there a manual for developers or can someone point me what need to be done for that? Yours, <pre class="moz-signature" cols="72">-- Nguyen Huu Chuong Institut für Festkörpertheorie Westfälische Wilhelms-Universität Wilhelm-Klemm-Straße 10, 48149 Münster </pre>