<div dir="ltr"><div>I am quite confident that what is written in the documentation is correct, but I have no evidence to support (or disprove) this<br></div><div><br></div><div>Paolo<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Dec 4, 2019 at 11:48 AM Giovanni Cantele <<a href="mailto:giovanni.cantele@spin.cnr.it">giovanni.cantele@spin.cnr.it</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 style="overflow-wrap: break-word;">Dear all,<div><br></div><div>I would like just to have confirmation about the units used by QE for electric field within two different approaches:</div><div><br></div><div>1) sawtooth potential </div><div>from the documentation I see Amplitude of the electric field, in ***Hartree*** a.u.;<div>1 a.u. = 51.4220632*10^10 V/m</div><div><br></div><div>That means that 1 V / A = 1 / 51.4220632 = 0.019447 => eamp = 0.019447 in this example</div><div><br></div><div><br></div><div>2) ESM method with esm_bc = ‘bc2’</div><div>from the documentation I read "magnitude of the electric field [Ry/a.u.] to be applied</div><div>between semi-infinite ESM electrodes.”</div><div><br></div><div>That means that 1 V / A = 2 / 51.4220632 = 0.038894</div><div><br></div><div><br></div><div>So, if I want to test both methods, I should use in the former case a value of eamp, in the latter twice this value.</div><div>Is it right?</div><div><br></div><div>Thanks for support,</div><div><br></div><div> Giovanni</div><div><br></div><div>
<div dir="auto" style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none"><div dir="auto" style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none"><div style="text-align:start;text-indent:0px"><div style="text-align:start;text-indent:0px"><span style="color:rgb(0,0,0);letter-spacing:normal;text-transform:none;white-space:normal;word-spacing:0px">-- <br><br>Giovanni Cantele, PhD</span></div><div style="text-align:start;text-indent:0px"><span style="color:rgb(0,0,0);letter-spacing:normal;text-transform:none;white-space:normal;word-spacing:0px"><br>CNR-SPIN<br>c/o Dipartimento di Fisica<br>Universita' di Napoli "Federico II"<br>Complesso Universitario M. S. Angelo - Ed. 6<br>Via Cintia, I-80126, Napoli, Italy</span></div><div style="text-align:start;text-indent:0px"><span style="color:rgb(0,0,0);letter-spacing:normal;text-transform:none;white-space:normal;word-spacing:0px"><br><a href="mailto:giovanni.cantele@spin.cnr.it" target="_blank">e-mail: giovanni.cantele@spin.cnr.it</a></span></div><div style="text-align:start;text-indent:0px"><span style="color:rgb(0,0,0);letter-spacing:normal;text-transform:none;white-space:normal;word-spacing:0px"> <a href="mailto:gcantele@gmail.com" target="_blank">gcantele@gmail.com</a><br>Phone: +39 081 676910<br>Skype contact: giocan74<br>Web page:<span> </span></span><a href="https://sites.google.com/view/giovanni-cantele" target="_blank">https://sites.google.com/view/giovanni-cantele</a></div></div></div></div>
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<a href="https://lists.quantum-espresso.org/mailman/listinfo/users" rel="noreferrer" target="_blank">https://lists.quantum-espresso.org/mailman/listinfo/users</a></blockquote></div><br clear="all"><br>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div>Paolo Giannozzi, Dip. Scienze Matematiche Informatiche e Fisiche,<br>Univ. Udine, via delle Scienze 208, 33100 Udine, Italy<br>Phone +39-0432-558216, fax +39-0432-558222<br><br></div></div></div></div></div>