How can I compute fatbands with SIESTA?
To plot both band eigenvalues and information about orbital projections (fatbands), a couple of utility programs must be compiled (Util/COOP and Util/Bands)
There are also new variables that must be included in SIESTA input file to plot the fatbands.
We recommend to take a look at one of the self-explained SIESTA tutorials collected in Prof. Javier Junquera’s web page to learn about this topic.
http://personales.unican.es/junqueraj/JavierJunquera_files/Metodos/Hands-on-session.html