This question is the most similar to my own, but it was closed before anyone could answer it. Looking here there are quite a few "Typewrite" fonts built into LaTeX. I was wondering what the default font is for \texttt, and how I would go about changing the font to one of the others on this list.
[Tex/LaTex] How to change the \texttt font
typewriter
Related Solutions
You just need to encourage latex to initialise the font setup in scriptstyle as well as the main textstyle. As you notice, it doesn't do this until it thinks it is needed:
\documentclass{minimal}
\usepackage{amsmath}
\newcommand{\ttmath}{%
\everymath{%
{\scriptstyle\mathtt{}}%
{\scriptscriptstyle\mathtt{}}%
\mathtt{\xdef\tmp{\fam\the\fam\relax}\aftergroup\tmp}}}
\newcommand{\val}[1]{\bgroup\ttmath\texttt{#1}\egroup}
\begin{document}
\val{1\ensuremath{\ensuremath{\cdot}10\ensuremath{^{-6}}}}
\ensuremath{a_0}, \ensuremath{m_{\text{e}}}).
\val{1\ensuremath{\ensuremath{\cdot}10\ensuremath{^{-6}}}}
\end{document}
default value for option 'scaled' is '.9. You can set scale to explicit value, e.g.,
\usepackage[scaled=.7]{beramono}
Best Answer
It looks like you can just use the package, for example:
You can also use (assuming the font is available):
With fontspec, you can also use: