Negative thermal expansion in transition-metal dicyanides: the hidden
role of the underlying diamondoid framework
Negative thermal expansion in transition-metal dicyanides: the hidden
role of the underlying diamondoid framework
The transition-metal dicyanides M(CN)$_2$ (M = Zn, Cd) are amongst the most important negative thermal expansion (NTE) materials known, favoured for the magnitude, isotropy, and thermal persistence of the NTE behaviour they show. The conventional picture of the NTE mechanism in this family is one of correlated rotations and translations …