<div dir="ltr"><div class="gmail_default" style="font-family:trebuchet ms,sans-serif">Dear all,<br><br></div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif">For example I have a conjugated carbon chain ( CH2-(CH)n-CH2) which I expect to show two types of wannier functions: Sigma-like orbitals sitting on carbon-hydrogen and carbon-carbon bonds, and Pi-like orbitals that sits on two carbons. However, it occurs that wannier90 always mixes the Pi-like orbital with one of the sigma-like orbitals in order lower the localization. I understand this may produce more localized orbitals, but the shape of them have less chemical meaning. <br><br>What I would like to do is to separate the occupied KS orbitals into two manifolds: pi-like orbitals ( they look like the linear combination of Carbon-pz orbital), and the rest. Then when we I rotate the KS orbitals in order to produce Wannier functions I do not mix the orbitals between these two manifolds. <br><br>I hope I have explained the question clear enough. Has this kind of thing or similar already been considered in wannier90? Would anyone suggest me how to achieve this? Thank you very much. <br></div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif"><br clear="all"></div><div><div class="gmail_signature"><div dir="ltr">===================<br>Dr. Xiaochuan Ge (Giovanni)<div>Center for Functional Nanomaterials<br><div>Brookhaven national laboratory </div><div>===================</div></div></div></div></div>
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