<SW_params n_types="2" label="DFTB_Si_C_SiC_elastic_fit">
<comment> generated by merlin fitting code, fit to DFTB elastic constants for C (dia), Si (dia), SiC (3C) </comment>
<per_type_data type="1" atomic_num="6" />
<per_type_data type="2" atomic_num="14" />
<per_pair_data atnum_i="6" atnum_j="6" AA="7.10452662204166" BB="0.537562891459037" p="4.08593949467549" q="-9.237131039984561E-02" a="1.97609439689384" sigma="1.32288476391321" eps="2.34624746734723" />
<per_pair_data atnum_i="6" atnum_j="14" AA="7.20824696268067" BB="0.831778453076121" p="4.22025772553979" q="-0.126058207686201" a="1.85873709944056" sigma="1.58277370779889" eps="2.65086282662629" />
<per_pair_data atnum_i="14" atnum_j="14" AA="7.04967303917887" BB="0.944258760041191" p="4.04633491076025" q="-5.410078791511558E-02" a="1.51930392640520" sigma="2.13527699552411" eps="2.17025002373649" />
<per_triplet_data atnum_c="6" atnum_j="6" atnum_k="6" lambda="21.0031819305601" gamma="0.929699809682844" eps="2.20105074857713" />
<per_triplet_data atnum_c="14" atnum_j="14" atnum_k="14" lambda="21.0055333190804" gamma="0.651249471076724" eps="2.22344583669553" />
<per_triplet_data atnum_c="6" atnum_j="14" atnum_k="14" lambda="21.0055023254418" gamma="0.937589050826601" eps="2.22287183790356" />
<per_triplet_data atnum_c="6" atnum_j="6" atnum_k="14" lambda="21.0055023254418" gamma="0.937589050826601" eps="2.22287183790356" />
<per_triplet_data atnum_c="6" atnum_j="14" atnum_k="6" lambda="21.0055023254418" gamma="0.937589050826601" eps="2.22287183790356" />
<per_triplet_data atnum_c="14" atnum_j="6" atnum_k="6" lambda="21.0054715280856" gamma="0.948809362126533" eps="2.22264287116877" />
<per_triplet_data atnum_c="14" atnum_j="14" atnum_k="6" lambda="21.0054715280856" gamma="0.948809362126533" eps="2.22264287116877" />
<per_triplet_data atnum_c="14" atnum_j="6" atnum_k="14" lambda="21.0054715280856" gamma="0.948809362126533" eps="2.22264287116877" />
</SW_params>
