<div>Dear all</div> <div> </div> <div>I want to calculate PMN, which contains Nb, Mg, Pb, O, within LDA. However, there is only norm-consevring pseudopotential(NCPP) for Mg. There is ultrasoft pseudopotentials(USPP) for Pb, O, Nb, i.e. Pb.vdb.UPF, O.vdb.UPF(as used in example10) and Nb.vdb.UPF( which I generated using vanderbilt's code), </div> <div>Can I use Mg's NCPP and other three's USPP together ?</div> <div> </div> <div>As a test, I modified Exampel10, changed the Pb.vdb.UPF to Pb.bz-bhs.UPF, and it gave good results, which is somewhat different from the result of original exampel. Can these result be considered reliable?</div> <div> </div> <div>Thanks in advance</div> <div> </div> <div>sincerely</div> <div>ruizhi zhang</div><p>
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