I want to add a small text on a regular one. It looks like a superscript but the difference is the regular text won't have any break. I don't know how to explain the situation correctly so I added a sample image showing what I want to do.
Any suggestions how to type this in latex?
Just for fun, with the experimental xcoffins package. Special alignment tasks like this formed some of the inspiration for this new package/feature.
The two text elements are set in separate "coffins". The smaller one is then scaled down. (Since I've already used the full gamut of design type sizes available: \tiny-\Huge.)
Finally, the coffins are joined by their right top (r,t) poles with an (optional) offset (0pt,-0.1em) before being typeset.
\documentclass[border=2pt]{standalone}
\usepackage{xcoffins}
\NewCoffin\BigText
\NewCoffin\SmallText
\begin{document}\sffamily
\SetHorizontalCoffin\BigText{\Huge Tex}%
\SetHorizontalCoffin\SmallText{\tiny Superscript}%
\ScaleCoffin\SmallText{0.75}{0.75}%
\JoinCoffins\BigText[r,t]\SmallText[r,t](0pt,-0.1em)%
\TypesetCoffin\BigText
\end{document}
The kerning was not the focus of the question, but since it has been mentioned in a comment: it is quite easy to add if desired.
\documentclass[border=2pt]{standalone}
\usepackage{xcoffins}
\NewCoffin\BigText
\NewCoffin\SmallText
\begin{document}\sffamily
\SetHorizontalCoffin\BigText{\Huge T\kern-0.175emex}%
\SetHorizontalCoffin\SmallText{\tiny Superscript}%
\ScaleCoffin\SmallText{0.65}{0.65}%
\JoinCoffins\BigText[r,t]\SmallText[r,t](0pt,-0.15em)%
\TypesetCoffin\BigText
\end{document}
Something like that? I used the stackengine package:
\documentclass[a4paper, 12pt]{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage[x11names]{xcolor}
\usepackage{stackengine}
\begin{document}
\setstackgap{S}{-1.6ex}
\def\stackalignment{r}
\stackon{\color{IndianRed3}\fontsize{60}{0}\selectfont\sffamily\bfseries T{\kern-0.15em}ex}{\sffamily\scriptsize\color{LightSteelBlue3} Superscript\kern0.6em}
\end{document}
Edit: As pointed by Steven B. Segletes, you may obtain the same result with the \stackinset command, which has a simpler syntax in this situation:
\stackinset{r}{1em}{t}{0.1ex}{\sffamily\scriptsize\color{LightSteelBlue3} Superscript}{\color{IndianRed3}\fontsize{60}{0}\selectfont\sffamily\bfseries Tex}
It has 6 arguments: the first two are horizontal alignment and a possible horizontal offset; the next two are verticakl alignment and a vertical offset. The last two are the inset and anchor items themselves (in that order).
\documentclass{article}
\begin{document}
\sffamily
\Huge Tex%
\begin{picture}(0,0)
\put(-25,11.5){\tiny Superscript}
\end{picture}
\end{document}
Can't let this go without tikz, so game on:
\documentclass[tikz,border=4mm]{standalone}
\begin{document}
\begin{tikzpicture}[inner sep=0pt]
\node[font=\sffamily\Huge] (a) {Tex};
\node[scale=0.4,font=\sffamily,anchor=north east,yshift=-0.3ex] at (a.north east) {Superscript};
\end{tikzpicture}
\end{document}
May I contribute with a MetaPost solution? :-) It uses the tight integration of MetaPost in LuaLaTeX, directly using the document fonts and font-related specific units of TeX (em, ex).
\documentclass{article}
\usepackage{luamplib}
\begin{document}
{\sffamily
\begin{mplibcode}
beginfig(1);
draw textext("\Huge Tex");
draw textext("\tiny Superscript") scaled .75 shifted (\mpdim{1.6em}, \mpdim{2.8ex});;
endfig;
\end{mplibcode}}
\end{document}
Another simple solution with boxes
\documentclass{standalone}
\begin{document}
\makebox[4em][l]{%
\sffamily
\huge T%
\makebox[-4pt][l]{\raisebox{1.3ex}{\tiny superscript}}%
\Huge ex%
}
\end{document}
Like Bernard, I use stackengine, but here I use a \stackinset, instead of a \stackon.
\documentclass{article}
\usepackage{stackengine,graphicx}
\begin{document}
\sffamily\stackinset{r}{2ex}{t}{2pt}{Superscript}{\scalebox{7}{Tex}}
\end{document}
