<div dir="ltr"><div>Hello,</div><div>you can enforce the b3lyp functional from input just by adding 'input_dft=b3lyp' in &system in the input file. There are also some variants of b3lyp in libxc that can be found here:</div><div><a href="https://www.tddft.org/programs/libxc/functionals/">https://www.tddft.org/programs/libxc/functionals/</a></div><div>You can use them too (see the user_guide in Doc folder of QE v6.6 for the usage of libxc).</div><div>Hope it helps,</div><div>Fabrizio<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Sep 27, 2020 at 5:02 PM Sai vishnu <<a href="mailto:vsai9409@gmail.com">vsai9409@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Dear all,<div> How can we get exchange correlation functions like
Hybrid B3LYP or GW
methods
</div><div>in Quantum espresso for improving the band gap of our material.</div></div>
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