I am trying to plot distributions of article citations. Due to the skewness of citations, I want the axes to be measured in an exponential scale. Does stata provide this option? See below image for an illustration of the type of scaling I am looking for (image copied from Radicchi, Fortunato & Catellano. 2008. PNAS). Array

Below is a MWE for the code I am using to currently plot citations. I am looking for an option that I could specify at the end of this MWE to achieve the exponential scale as in Radicchi et al. Currently the scale is in levels and the plot looks squished.
Code:
 
twoway (kdensity citations if Engineering==1, lcolor(gs7) lwidth(medthick)) || ///
       (kdensity citations if Biology==1, lcolor(gs7) lwidth(medthick) lpattern(shortdash))