Chemical-potentials-control.md

 # Ajusting of chemical potentials
 Static codes adjust chemical potentials automatically in such a way to provide a solution with requested particle number. Following parameters control adjusting process:
 ```bash
-muchange                0.5      # coefficient for changing chemical potential, default=0.5
-mumaxchange             0.05     # maximal allowed changed of chemical potential per iteration,
-                                 # in units of Fermi energy
+muchange                0.5      # coefficient for changing chemical potential, default=0.5, for both components
+# muchange_a              0.5      # or you can control muchange for each component separately using tags with `a` ...
+# muchange_b              0.5      # ... and `b` suffixes. 
+mumaxchange             0.05     # maximal amount that chemical potential can change between iterations, in units of Fermi energy
+# mumaxchange_a           0.05     # or you can control mumaxchange for each component separately using tags with `a` ...
+# mumaxchange_b           0.05     # ... and `b` suffixes. 
 ```
 Chemical potentials are adjusted according to rule:  
 ```math
 \begin{aligned}
-\Delta\mu_{\sigma}^{(i)} &= \textrm{muchange}\,\frac{N_{\sigma}^{(\textrm{req.})}-N_{\sigma}^{(i)}}{N_{\sigma}^{(\textrm{req.})}}\\
-\textrm{if}\,|\Delta\mu_{\sigma}^{(i)}/\varepsilon_F|&>\textrm{mumaxchange}:\,\textrm{decrease}\,\textrm{magnitude}\,\textrm{of}\,\Delta\mu_{\sigma}^{(i)}\\
+\Delta\mu_{\sigma}^{(i)} &= \textrm{muchange}_{\sigma}\,\frac{N_{\sigma}^{(\textrm{req.})}-N_{\sigma}^{(i)}}{N_{\sigma}^{(\textrm{req.})}}\\
+\textrm{if}\,|\Delta\mu_{\sigma}^{(i)}/\varepsilon_F|&>\textrm{mumaxchange}_{\sigma}:\,\textrm{decrease}\,\textrm{magnitude}\,\textrm{of}\,\Delta\mu_{\sigma}^{(i)}\\
 \mu_{\sigma}^{(i+1)} &= \mu_{\sigma}^{(i+1)} + \Delta\mu_{\sigma}^{(i)} 
 \end{aligned}
 ```