Diverging thermal expansion of the spin-ladder system (C${}_5$H${}_{12}$N)${}_2$CuBr${}_4$

T. Lorenz, O. Heyer, M. Garst +4

We present high-resolution measurements of the $c^{\star }$-axis thermal expansion and magnetostriction of piperidinium copper bromide \hp. The experimental data at low temperatures i…