<div dir="ltr">Dear cp2k,<div><br></div><div>I am trying to deal with the planar average potential under static electric field, which is realized by &EXTERNAL_POTENTIAL in &DFT section, and the dipole correction is switched on:</div><div>SURFACE_DIPOLE_CORRECTION T<br>         SURF_DIP_DIR Z</div><div>&EXTERNAL_POTENTIAL</div><div>    FUNCTION (A/B)*Z<br>    VALUES [eV] 0.2 [angstrom] 1.0<br>    PARAMETERS A B<br>         &END EXTERNAL_POTENTIAL </div><div><br></div><div>However, by checking the hartree.cube in the field of 0.2 eV/Angstrom, the saw-tooth potential is not observable, while in VASP, the LOCPOT displays such saw-tooth potential. </div><div><br></div><div>So, if there is the problem with such condition in CP2K? How to deal with this?<br></div><div><img src="cid:ii_m7lfrug70" alt="image.png" width="196" height="172" style="margin-right: 0px;"><img src="cid:ii_m7lfsesp1" alt="image.png" width="209" height="169" style="margin-right: 0px;"><br></div><div><br></div><div>Best regards,</div><div>Xuan</div></div>

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