Fig. 5: Characterisation of binary mixtures of 1 and DIO.

a Phase diagram of binary mixtures. melting points are denoted by the blue dotted line, and N-I transition temperatures have been omitted for clarity; b temperature dependence of the layer spacing (d) for the N, Nx, NF, SmAF and \({{{{{\rm{Sm}}}}}}{{{{{{\rm{C}}}}}}}_{{{{{{\rm{P}}}}}}}^{{{{{{\rm{H}}}}}}}\) phases of a mixture of 50% 1 and DIO. For the N, Nx and NF phase this does not correspond to a layer but corresponds to the long axis correlations present. c Temperature dependence of spontaneous polarization (Ps) for the same 50% mixture of 1 and DIO measured at 20 Hz, and d POM micrographs of a mixture of 35:65 molar ratio of 1 and DIO showing the N, NX, NF and \({{{{{\rm{Sm}}}}}}{{{{{{\rm{C}}}}}}}_{{{{{{\rm{P}}}}}}}^{{{{{{\rm{H}}}}}}}\) phases. The sample is confined within a thin cell treated for planar anchoring.