<p>Dear CP2K developers and users,</p>
<p>I am trying to reproduce C 1s and O 1s binding energies (from XPS simulation) using CP2K, following the methodology described in the Supporting Information of the following paper:</p>
<p>“Reaction Intermediates Involved in the Epoxidation of Ethylene Over Silver Revealed by In Situ Photoelectron Spectroscopy”<br />
Man Guo, Nanchen Dongfang, Qiang Liu, Marcella Iannuzzi, Jeroen Anton van Bokhoven, Luca Artiglia,<br />
<em>Small</em> 2024, DOI: 10.1002/smll.202408432. https://onlinelibrary.wiley.com/doi/10.1002/smll.202408432?af=R</p>
<p>“Slater transition potential method with half-core hole approximation using GAPW and all-electron basis sets.”</p>
<p>According to the SI, they:</p>
<p>Performed geometry optimization with GPW + GTH pseudopotentials<br />
Switched to GAPW<br />
Treated C and O as all-electron (no pseudopotentials)<br />
Used 6-311G all-electron basis sets<br />
Applied the Slater transition potential method (half-core-hole)<br />
Extracted binding energies from core-level eigenvalues after removing half an electron</p>
<p>I have added the following in the input file of my final states (with core-hole).</p>
<div><div><div><div></div></div></div><div dir="ltr">&XAS <br /> RESTART .FALSE.<br /> METHOD TP_HH <br /> STATE_TYPE 1S <br /> ATOMS_LIST 37 ! target atom index<br /> ADDED_MOS 200<br /><br /> &SCF<br /> MAX_SCF 300<br /> EPS_SCF 1.0E-6<br /><br /> &MIXING<br /> METHOD BROYDEN_MIXING<br /> ALPHA 0.2<br /> NBROYDEN 10<br /> &END MIXING<br /><br /> &SMEAR<br /> METHOD FERMI_DIRAC<br /> ELECTRONIC_TEMPERATURE 500<br /> &END SMEAR<br /> &END SCF<br /><br /> &LOCALIZE<br /> &END LOCALIZE<br />&END XAS<br /></div></div>
<p>But the calculation keeps give me the same total energy as the initial state (without core-hole). I'd appreciate if someone can point out the mistake? </p><p>Thank you in advance for any advice or examples you can share.</p>
<p>With best regards,<br /></p>
<p></p>
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