title: Quantum Hall effect in fractal graphene: growth and properties of graphlocons.
abstract: Highly dendritic graphene crystals up to 0.25 mm in diameter are synthesized by low pressure chemical vapor deposition inside a copper enclosure. With their six-fold symmetry and fractal-like shape, the crystals resemble snowflakes. The evolution of the dendritic growth features is investigated for different growth conditions, and surface diffusion is found to be the growth-limiting step responsible for the formation of dendrites. The electronic properties of the dendritic crystals are examined down to sub-Kelvin temperatures, showing a mobility of up to 6300 cm(2) V(-1) s(-1) and quantum Hall oscillations are observed above 4 T. These results demonstrate the high quality of the transport properties despite their rough dendritic edges.
authors.affiliation: Department of Physics, McGill University, Montréal, QC, H3A 2T8, Canada. mathieu.massicotte@mail.mcgill.ca
authors.forename: Mathieu
authors.initials: M
authors.lastname: Massicotte
authors.forename: Victor
authors.initials: V
authors.lastname: Yu
authors.forename: Eric
authors.initials: E
authors.lastname: Whiteway
authors.forename: Dan
authors.initials: D
authors.lastname: Vatnik
authors.forename: Michael
authors.initials: M
authors.lastname: Hilke