kkrsusc/perform.md

@@ -2,6 +2,7 @@
 title: KKRSusc Quickstart Guide
 ---
 
+
 # Perform a KKRsusc calculation
 
 In order to investigate spin-excitations via the KKRsusc program please follow the instructions as given hereafter.
@@ -18,7 +19,7 @@ Step 1 and 2 are done with the Jülich-München code, step 3 and 4 utilize the K
 
 ## Step 2: Get the host Green functions for the susceptibility contour
 
-- To perform a susceptibility calculation, a detailed description of the region around the Fermi level is needed. For that reason the impurity cluster needs to be converged on a new contour, that includes energy points at <span dir="">E_F</span> and goes down to the real axis.
+- To perform a susceptibility calculation, a detailed description of the region around the Fermi level is needed. For that reason the impurity cluster needs to be converged on a new contour, that includes energy points at $E_{F}$ and goes down to the real axis.
 - To create the contour, use the [meshpanels.dat file](kkrsusc/meshpanels.dat). Substitute the Fermi energy with the one for your system, and run the `emesh.x` executable, included in the KKRSusc package. This will result in a file called `emesh.dat` that includes the 50 energy points of the contour, that goes up to the Fermi energy.
 - Finally one iteration to write out the kkrflex\_\* files for a list of complex energy points as provided by the `emesh.dat`. In order to use this file you have to set the \[run option (jumu/runoption) `KKRSUSC` in the inputcard. Futhermore, increase the `BZDIVIDE` to a higher value (for thin film a 500x500x1 mesh is usally enough), and the `RCLUSTZ` parameter so that the cluster includes 200-300 atoms (usually a value of 2.5 is enough).