<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
</head>
<body dir="ltr">
<div class="elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">
... plus one more KB projector for the 3D channel. </div>
<div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">
<br>
</div>
<hr style="display: inline-block; width: 98%;">
<div id="divRplyFwdMsg">
<div style="direction: ltr; font-family: Calibri, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">
<b>From:</b> users <users-bounces@lists.quantum-espresso.org> on behalf of Pietro Davide Delugas <pdelugas@sissa.it><br>
<b>Sent:</b> Thursday, July 2, 2026 14:23<br>
<b>To:</b> Quantum ESPRESSO users Forum <users@lists.quantum-espresso.org><br>
<b>Subject:</b> Re: [QE-users] Pseudopotential nomenclature: n vs nl</div>
<div style="direction: ltr;"> </div>
</div>
<div style="direction: ltr; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">
Hello</div>
<div style="direction: ltr; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">
I don't know exactly; I guess the l stands for low (slightly lower accuracy but more efficient). In any case, in the ps library, all pseudos with the nl label belong to the low collection. The difference is in the inside 🙂 , one uses shorter cutoff radii
and can use a smaller ecutrho. </div>
<div style="direction: ltr; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="direction: ltr; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">
Hope this helps </div>
<div style="direction: ltr; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">
Pietro</div>
<div style="direction: ltr; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">
<img id="x_image_0" style="max-width: 924px;" size="416657" data-outlook-trace="F:2|T:2" src="cid:331543f4-1ab2-424f-ae00-12e174c78926"></div>
<div style="direction: ltr; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">
<br>
</div>
<hr style="direction: ltr; display: inline-block; width: 98%;">
<div id="x_divRplyFwdMsg">
<div style="direction: ltr; font-family: Calibri, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">
<b>From:</b> users <users-bounces@lists.quantum-espresso.org> on behalf of KRISHNENDU MUKHERJEE <krishnendu.nml@csir.res.in><br>
<b>Sent:</b> Thursday, July 2, 2026 13:39<br>
<b>To:</b> users <users@lists.quantum-espresso.org><br>
<b>Subject:</b> [QE-users] Pseudopotential nomenclature: n vs nl</div>
<div style="direction: ltr;"> </div>
</div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt;">
<br>
</div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 16px;">
Hello,</div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 16px;">
<br>
</div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 16px;">
Can you kindly let me know the diffternce between the pseudopotentials,</div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 16px;">
<br>
</div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 16px;">
<a href="https://pseudopotentials.quantum-espresso.org/upf_files/Al.pbe-n-rrkjus_psl.1.0.0.UPF" id="OWAe6e846f3-a1db-7de0-1f56-99a8e071f565" class="x_x_element_anchor x_OWAAutoLink" data-auth="NotApplicable">Al.pbe-n-rrkjus_psl.1.0.0.UPF</a> vs.
<a href="https://pseudopotentials.quantum-espresso.org/upf_files/Al.pbe-nl-rrkjus_psl.1.0.0.UPF" id="OWA0b45bd65-af30-b619-f883-9f1887f6c178" class="x_x_element_anchor x_OWAAutoLink" data-auth="NotApplicable">
Al.pbe-nl-rrkjus_psl.1.0.0.UPF</a></div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 16px;">
<br>
</div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 16px;">
that is one has nl vs. the other one has n</div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 16px;">
<br>
</div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 16px;">
Thank you,</div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 16px;">
Regards,</div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 16px;">
Krishnendu</div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt;">
<br>
</div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt;">
--</div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt;">
<br>
</div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt;">
Dr. Krishnendu Mukherjee,</div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt;">
<br>
</div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt;">
Senior Principal Scientist,</div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt;">
CSIR-NML,</div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt;">
Jamshedpur.</div>
<div style="direction: ltr; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt;">
<br>
</div>
<div style="direction: ltr;"><br>
</div>
</body>
</html>