<div>Dear Michele,</div><div>Because you are interested in a range-separated hybrid functional, you have to setup the HF section accordingly (CP2K does not do that automatically, see https://www.cp2k.org/_media/events:2019_ghent:admm.pdf or https://github.com/cp2k/cp2k/tree/master/data/xc_section for more inspiration). Beware that you need to convert the short-range/long-range-split to a Coulomb/long-range split. Your HF section should look as follows</div><div>&HF</div><div>&INTERACTION_POTENTIAL</div><div>POTENTIAL_TYPE MIXED_CL_TRUNC</div><div>OMEGA 0.75</div><div># the same as the amount of HF short-range exchange</div><div>SCALE_COULOMB 1.0</div><div># the same as the amount of long-range MINUS the amount of short-range exchange</div><div>SCALE_LONGRANGE -0.8</div><div># A bit less than half of the distance to the nearest neighbor</div><div>CUTOFF_RADIUS 5.5<br />T_C_G_DATA /g100_work/IscrC_MHP-DEF/t_c_g.dat
<br /></div><div>&END</div><div><your other options></div><div>&END HF</div><div><br /></div><div>HTH,</div><div>Frederick</div><div class="gmail_quote"><div dir="auto" class="gmail_attr">Michele Loriso schrieb am Mittwoch, 9. Juli 2025 um 14:04:56 UTC+2:<br/></div><blockquote class="gmail_quote" style="margin: 0 0 0 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Dear CP2k community, <div>our team is currently performing geometry optimizations and single points on several zinc(II) bulks, and using v. 10.0.</div><div>While attempting to run geo_opts and wfn_opts using a DD-CAM functional (reported below the input file), we obtained an absurd value for the HOMO-LUMO gap (ca. 9 eV) of ZnO.</div><div>May I ask you for an advice in assemblying the input file?</div><div>Thanks in advance!</div><div><br></div><div>&XC<br> &XC_FUNCTIONAL<br> &HYB_GGA_XC_CAM_PBEH<br> SCALE 0.0 <br> _OMEGA 0.75 ! Range-separation parameter (in Bohr⁻¹)<br> _ALPHA 1.0 ! Short-range HF exchange<br> _BETA 0.20 ! Long-range HF exchange<br> &END HYB_GGA_XC_CAM_PBEH<br> &END XC_FUNCTIONAL<br>&HF<br>&SCREENING<br>EPS_SCHWARZ 1.0E-6<br>SCREEN_ON_INITIAL_P FALSE<br>&END SCREENING<br>&INTERACTION_POTENTIAL<br>POTENTIAL_TYPE TRUNCATED<br>CUTOFF_RADIUS 5.5<br>T_C_G_DATA /g100_work/IscrC_MHP-DEF/t_c_g.dat<br>&END INTERACTION_POTENTIAL<br>&MEMORY<br>MAX_MEMORY 3600<br>EPS_STORAGE_SCALING 0.1<br>&END MEMORY<br><br>&END HF<br> &END XC<br></div></blockquote></div>
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