Nanocomposites and nanomaterials
Transverse resistivity of acceptor graphite intercalation compounds 
Ovsiienko I.V.1, Len T.A.1, Matzui L.Yu.1, Shpylka D.O.1, Naumova D.D.2
Taras Shevchenko National University of Kyiv, Departments of Physics1 and Chemistry2, 01601, Volodymyrska st. 64/13, Kyiv, Ukraine
E-mail: iaryna2002@gmail.com
The work presents the results of investigations of transverse resistivity (resistivity perpendicular to graphite layers) for acceptor graphite intercalation compounds (GICs) based both high oriented pyrolitic graphite (HOPG, distance between graphite layers d002 = 0.335 nm, crystalline size L = 500 nm, anisotropic parameter  = 104) and fine crystalline anisotropic pyrolytic graphite (FAPG, d002 = 0.340 nm, L = 30 nm,  = 103). Intercalation compounds with aluminum, iodine and antimony chlorides have been obtained by gas-phase two-temperature method. The transverse resistivity temperature dependence (c(T)) has been measured by standard four-probe methods in temperature interval from 4.2 K up to 300 K. 
Figure 1 presents the dependences c(T)) for GICs of different stages with SbCl5 based on HOPG (a) and FAPG) (b).
a)	b)	
Figure 1. Dependences c(T) for GICs with SbCl5 based on HOPG (a) and FAPG) (b): 1 – host graphite, 2 - S = 2, 3 - S = 3.	
As can be seen from the Figure, the value of resistivity for GICs of different stages, as well as the character of the temperature dependence c(T) significantly depend on the structure of the host graphite. Experimental and theoretical studies have shown that transverse conductivity is determined by a combination of two mechanisms. These mechanisms are diffusion motion along the graphite planes and jumping conductivity between adjacent graphite layers. Differences in the temperature dependence of the resistivity for GICs based on structurally different forms of graphite can be described in terms of proposed model and are related primarily to the difference in the crystallites size in the host graphites.