Synthesis and electrical characterization of magnetic bilayer graphene intercalate.
We report synthesis and transport properties of the minimal graphite intercalation compound, a ferric chloride (FeCl(3))(n) island monolayer inside bilayer graphene. Chemical doping by the intercalant is simultaneously probed by micro-Raman spectroscopy and Hall measurements. Quantum oscillations of conductivity originate from microscopic domains of intercalated and unintercalated regions. A slight upturn in resistance related to magnetic transition is observed. Two-dimensional intercalation in bilayer graphene opens new possibilities to engineer two-dimensional properties of intercalates.
Department of Physics, Columbia University, New York 10027, USA.
Namdong
N
Kim
Kwang S
KS
Kim
Naeyoung
N
Jung
Louis
L
Brus
Philip
P
Kim
D002712:Chlorides / Q000737:chemistry*; D003460:Crystallization / Q000379:methods; D004553:Electric Conductivity; D004579:Electron Transport; D005290:Ferric Compounds / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry*; D007364:Intercalating Agents / Q000737:chemistry; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods; D010316:Particle Size; D013499:Surface Properties
D002712:Chlorides; D005290:Ferric Compounds; D007364:Intercalating Agents; D046911:Macromolecular Substances; D006108:Graphite; C024555:ferric chloride