Registration
DFTB+
In order to download the DFTB+ code, you have to sign a licence agreement. The licence covers not only the person signing it, but also the members of the signers group, therefore, it should be always signed by the group leader.
Please note, that this licence only covers the usage of the code. If you'd like to embed the code (or parts of it) into your application, you should contact the authors to make a special agreement for your individual case.
After signing the licence, please fax it or email it to the address specified therein. We'll then create an account on our web page for you, so that you can download the source of the DFTB+ code (and eventually some binaries as well).
Follow this link to read and eventually fill out the licence agreement.
Parameters
In order to use the DFTB+ code, you need parametrisation data for the diatomic interactions (so called Slater-Koster files). This parameters are distributed separately. You find the terms of conditions to obtain various parameter sets on the dftb website.
If you already possess Slater-Koster files (in the format used by the old Paderborn DFTB/Dylax-code), you can use those with DFTB+ as well. It is nevertheless encouraged to register and download the published sets, since the autotest system (checking if your code works correctly on your system) relies on those. Additionally, the published sets contain some documentation as well, which will be parsed by the next DFTB+ version in order to check the compatibility of the Slater-Koster files used for a specific calculation.