<div dir="ltr"><div>Dear Dr. Tran,</div><div><br></div><div>In the recent past, I did some calculations using YS-PBE0 for MgO and results were well reproduced (wien2k Exercise).</div><div></div><div><br></div><div>I just read your paper (J. Phys.: Condens. Matter 25 (2013)) and get to know that we can control the mixing parameter using various ways.</div><div><br></div><div>1) Standard value (0.025)</div><div>2) By fitting (alpa_opt)</div><div>3) alpa_opt (V=V_exp)</div><div><br></div><div><b>I have queries for option 2 and 3 alpa:</b></div><div> <br></div><div>2) If I am not wrong (after having a detailed search), the value of dielectric constant used to get alpa_opt is the value of dielectric constant from Rel(epsilon) at energy 0.013610 eV, right? <br></div><div><br></div><div><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><span style="font-size:12.8px">3) How to get alpa_opt at V-V_exp?<br></span></div><div dir="ltr"><span style="font-size:12.8px"><br></span></div></div><div><br></div><div><br></div><div><br></div><div><br> </div><div><b>My next query is:</b></div><div><b><br></b></div><div>It is reported in the Wien2k exercise that to do YS-PBE0 calculations we need to do a simple PBE scf. So if we really need to perform PBE calculations before going to YS-PBE0, I am wondering how to use YS-PBE0 to optimize the lattice parameters and to get structural properties?</div><div><br></div><div><br></div><div> <div>Could you please advice me on my concerns?</div><div><br></div><div>* in above text "_" means an underscore. <br></div><div><br></div><div><br></div><div>regards</div><div><br></div><br></div></div></div></div></div></div></div></div>
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