soumyadeep@soumyadeep-HP:~/Downloads/QE/Pseudo/VCA$ /home/soumyadeep/Downloads/QE/qe-6.6/upflib/virtual_v2.x Generate the UPF pseudopotential for a virtual atom combining two pseudopootentials in UPF format Input PP file # 1 in UPF format > Fe.pbe-spn-rrkjus_psl.1.0.0.UPF file type is UPF v.2 Input PP file # 2 in UPF format > Cu.pbe-dn-rrkjus_psl.1.0.0.UPF file type is UPF v.2 CAUTION !!! You are mixing pseudos with different number of electrons in valence New Pseudo = x Fe.pbe-spn-rrkjus_psl.1.0.0.UPF + (1-x) Cu.pbe-dn-rrkjus_psl.1.0.0.UPF mixing parameter x [0