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--- exercises:2017_ethz_mmm:stm [2017/05/25 12:17] – dpasserone
+++ exercises:2017_ethz_mmm:stm [2017/05/25 12:23] – dpasserone
@@ Line 100: / Line 100: @@
 thus we have a disceret spectrum of energies and it is quite likely that for  values of the bias voltage
 that fall in the HOMO-LUMO gap we will obtain an empty image
+Now we can simulate for teh same ribbon a AFM image:
+Go the the AFM directory of TASK_1
+copy there the p.xyz file that you find in the STM directory
+and execute:
+<code>
+./run_PP
+</code>
+It will take ~ 5 minutes, then you will find a dir containing the AFM simulated image.
+===TASK_2===
+Repeat all the instructions of TASK_1 for the scripts present in the dir TASK_2
+<note warning>
+Be carefulhere we do a spin polarized simulation,
+we have to distinguish the three C atoms of one terminus of the ribbon from the
+three of the opposite terminus calling them C1 and C2.
+When the file p.xyz is created in the STM dir (after running ./pos.sc)
+copy it immediateli to the AFM dir.
+Now, before executing the instructions for the STM dir
+edit the file p.xyz and modify it in such a way that
+the first three C atoms will be labelled as C1
+and the C atoms from 4 to 6 will be labelled as C2
+</note>