01427nas a2200157   4500008004100000022001400041245015000055210006900205260011000274300001600384490000700400520068000407100002601087700002501113856013101138       2015                        eng d  a1463-907600aCross over from 3D variable range hopping to the 2D weak localization conduction mechanism in disordered carbon with the extent of graphitization0 aCross over from 3D variable range hopping to the 2D weak localiz  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcMAY  a16178-161850 v173 a<p>The changes in the electrical transport properties and mechanism of conduction in disordered carbon, with the extent of graphitization, are studied and discussed. With heat treatment induced graphitic ordering, the electrical properties are considerably modified, inducing a crossover from strong localization to weak localization behavior. Accordingly, the conduction mechanism is modified from the 3-dimensional variable range hopping (3D VRH) model to the 2-dimensional weak localization (2D WL) model. Results show that carrier-carrier and carrier-phonon interactions play major roles in developing the weak localization behavior with the extent of graphitization.</p>1 aRaj, Kovummal, Govind1 aJoy, Pattayil, Alias  uhttps://library.ncl.res.in/content/cross-over-3d-variable-range-hopping-2d-weak-localization-conduction-mechanism-disordered-0