%0 Conference Proceedings %T Transport Properties of Disordered Graphene Layers %+ Groupe d'étude des semiconducteurs (GES) %A Gryglas-Borysiewicz, M. %A Jouault, Benoit %A Tworzydlo, J. %A Lewinska, S. %A Strupinski, W. %A Baranowski, J. M. %< avec comité de lecture %Z GES:09-080 %( ACTA PHYSICA POLONICA A %( ACTA PHYSICA POLONICA A %B 4th Workshop on Quantum Chaos and Localisation Phenomena %C Warsaw (POLAND), France %V 116 %P 838-840 %8 2009-05-22 %D 2009 %Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Conference papers %X Samples consisting of a few layers of graphene obtained by thermal decomposition of SiC were studied by means of transport experiments at 4 K and in a magnetic field up to 7 T. Transport data show that the samples have a two-dimensional character. Magnetoresistance has an approximately linear character at high magnetic fields, which has been previously observed in graphite samples, and a negative magnetoresistance, at low magnetic fields. The transverse resistivity rho(xy) is nonlinear as a function of B, which can be described using a many-carrier model %G English %L hal-00543287 %U https://hal.science/hal-00543287 %~ CNRS %~ UNIV-MONTP2 %~ GES %~ UNIV-MONTPELLIER %~ UM1-UM2