17 Percolation Threshold of 5-Cyanobiphenyl Mesogene Phases Between. . .
291
Fig. 17.1 The instantaneous configurations of 5CB mesogene phase between the graphene sheets
at the distance 9 Å: (a) side view; (b) top view
δ L =
2
N (N − 1)
N
i
ij
−
r ij
2
1
2
r ij
,
where r ij is the distance between the center of mass of ith and jth molecules.
Lindemann index can be related to the mobility of the molecules, and it seems
too reasonable to expect that it will raise with the increasing value of the distance
between the graphene planes. We can observe that the values of δ L are increasing
up to the distance of 14 Å, but it decreases in the case of larger distances. This
phenomenon can be explained in terms of physisorption (or anchoring) of the
mesogenes at the graphene [10].
291
Fig. 17.1 The instantaneous configurations of 5CB mesogene phase between the graphene sheets
at the distance 9 Å: (a) side view; (b) top view
δ L =
2
N (N − 1)
N
i
ij
−
r ij
2
1
2
r ij
,
where r ij is the distance between the center of mass of ith and jth molecules.
Lindemann index can be related to the mobility of the molecules, and it seems
too reasonable to expect that it will raise with the increasing value of the distance
between the graphene planes. We can observe that the values of δ L are increasing
up to the distance of 14 Å, but it decreases in the case of larger distances. This
phenomenon can be explained in terms of physisorption (or anchoring) of the
mesogenes at the graphene [10].