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Hi Imane<br>
<br>
I guess what you mean is that you see two surface states?<br>
This is just because you have a slab with 2 surfaces hence you double the number of surface states! And since your slab is very thin the states interacts and split..
<br>
In Au(111) the Shockley states are in fact very much delocalized and you need many layers to describe them correctly..<br>
<br>
Cyrille <br>
<br>
≈==========<br>
Cea Saclay<br>
SPEC<br>
Gif sur Yvette France<br>
============<br>
<br>
Cyrille
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>De :</b> users <users-bounces@lists.quantum-espresso.org> de la part de imane BEZZAOUI <imane.bezzaoui@ump.ac.ma><br>
<b>Envoyé :</b> vendredi 14 octobre 2022 14:29:49<br>
<b>À :</b> users@lists.quantum-espresso.org<br>
<b>Objet :</b> [QE-users] the band structure of Au(111)</font>
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<div dir="ltr">Dear all
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<div>I would ask you when I plot the band structure of Au(111) with 7 layers to get the Shockley states and I want to add more layers But as in the graph below, I obtained the band as two separate curves instead of obtaining only one.<br>
<div><img alt="au7layers.png" width="452" height="346" src="cid:ii_l98gv7qi2"><br>
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