<div dir="ltr"><div>Dear Sir/Madam,</div><div><br></div><div>I used Quantum Espresso (QE) to compute the band structure for the same system that I examined by VASP but QE gives me very different band structure from that given by VASP, including both of the band shape and energy.</div><div><br></div><div>I think that the remain reason comes from the pseudopotential I choose is not proper. VASP provides the pseudopotential for Co element with 9 valence electron; while, QE provides one with 27 valence electrons. Would you anyone please tell me how to choose or generate a proper pseudopotential? Thank you.</div><div><br></div><div>Kind regards,</div><div><br></div><div>Kenan Song<br></div></div>
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