Landau_level_fittin​g

Fits transport data (Rxx vs V_BG vs H) of 2DEG to Landau Fan diagram for different values of cpacitance

Fits transport data of 2DEG to Landau Fan diagram for different values of cpacitance. Steps to follow:

1. Save your transport data as .mat file, where the resistance or voltage data is saved as a struct named 'transport_data', where each field contains double array of Rxx or Rxy etc. The same .mat file should contain magnetic field data as a vector named 'H' and gate voltage data as a vector named 'Vbg'
2. Load the transport data, press 'Load Data/Plot'
3. Change 'Field factor' to 1, if the applied magnetic field is exactly known
4. Change 'Capacitance' value in units of 1/(V.cm^2)
5. Fix 'Number of LL'
6. Choose value of origin for the Landau fan in units of Vbg (for example Charge Neutrality or other filling fractions)
7. Choose 'Degeneracy' in integer
8. Press 'Fit'
9. You can change Axis limits, colorbar limits and can choose which Colormap to use
10. Once fitted, you can export values of capacitance (c_cm), field factor (field_factor) and value of origin of Landau fan (V0) to workspace for future use
11. 'Export to workspace' also saves the fitted figure as PNG in the directory where the .mat file is saved