Structural Investigation of Smectic Q Phase

References

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• Both the term smectic which suggest a layered structure and the letter Q, which is used by Luzatti group4 for labelling the lyotropic cubic mesophases are not appropriate. The best is to refer to the lattice symmetry characterized by the space group. Therefore by analogy with the blue phases sequence we propose to design the different phases by a simple capital letter (i. e. tetragonal phases are labelled TI, TII,…). However contrarywise to the case of the blue phases which have an intrinsic twist character, one can find crystals of defects4 where the chirality is absent or does not play an important role, while the phases here considered are chirally induced, therefore we will add a “*” as in N* or SC* in order to underline that feature
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